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My system uses PC2 4200 DDR2 CL4 NP DDR2 SODIMM

Q: My system uses PC2 4200 DDR2 CL4 NP DDR2 SODIMM

...can it be replaced with PC2 5300 DDR2 CL5 DDR2 SODIMM. Will my computer explode if I use it? It's a IBM Lenovo 3000, 1.5ghz, w/Intel Celeron M. Thank you

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Preferred Solution: My system uses PC2 4200 DDR2 CL4 NP DDR2 SODIMM

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A: My system uses PC2 4200 DDR2 CL4 NP DDR2 SODIMM

Go here and on the right,.. click Scan My System
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Is this considered value RAM? I bought 2gigs of it for $50, installed it and it is defaulting to DDR-667. Seemed like a steal at the time

I had to manually go into BIOS and up the voltage and increase the clock - It is now at DDR-800
And while were at it, advertises this
as SLI ready, but I do NOT see where you would hook up the SLI cable. Anybody?
Just a few kinks with the new build

A:Kingston HyperX 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel De

From the newegg comments:

I feel as like I should clear up the confusion about this memory. This ram is programed to default to DDR2-667 at 1.8volts instead of the DDR2-800 at 2volts. This is because most motherboards default to 1.8v, and it would suck if you were trying to build a new computer and you couldn't boot because your memory only ran at 2v. That's why kingston made it so you can run it at 1.8v(although at a slower speed) and change it to 2v later. YOU NEED TO MANUALLY SET THE VOLTAGE TO 2VOLTS AND SPEED TO DDR2 800 @ 4-4-4-12 IN THE BIOS. If you don't do this then you are wasting good memory. If you don't believe me then read the data sheet here: to expand...

So that makes sense...

Also I think your 2nd link is the same as your first
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A friend of mine is upgrading his computer. He has an XFX 680i lt sli motherboard. What is better in RAM: 2gb at 800mhz or 4gb at 667mhz? He has XP. Also, should he get ECC ram, buffered ram, or normal ram? He wants to play games such as WoW, DIablo II, and maybe Crysis.

A:Ram question: ddr2 4gb at 667mhz or ddr2 2gb at 800mhz?

Four. You definitely notice a 100% difference in amount over 25% in memory speed - which isn't really noticeable anyway.

That mainboard uses normal DDR2 memory.
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are they interchangeable?

if my board has DDR2, can i use the ddr2 dual channel?

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I'm looking to upgrade replace my current 2x2GB DDR2-667 modules with 2x2GB DDR2-1066 modules in a couple days but I'm wondering if I really need that!

I mainly write software and run linux on virtualbox on that particular machine and so far everything works really well but I'm looking forward to game a little on it as well, after a video card upgrade of course!

So, would I get like a reasonable performance increase with those ddr2-1066 modules or should I just forget about them and keep my current setup?

A:DDR2-667 to DDR2-1066 performance?

Does your motherboard support the DDR2-1066?
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i have an old laptop which has 4 gigs DDR2 using 2 channels, is there any adapter or linker which would allow me to connect my laptop memory to my desktop sized slot

A:DDR2 Laptop to Desktop DDR2

Yes. See Adapter / Tester : Laptop DDR2 200 pin SODIMM RAM to desktop DDR2 240 pin DIMM RAM: Computers & Accessories
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Im throwing together a machine for my GF.. I have a processor but need to get a socket 478 mobo.. The one I was looking at uses DDR2-400 memory and I have some DDR2-800 memory sticks laying around..

Will it work ok to use the DDR2-800 sticks on a mobo that accepts DDR2-400 memory?

A:Ok to put DDR2-800 memory on a DDR2-400 mobo?

"Typically" you can run faster memory in a machine rated for slower memory - the memory simply runs ate the mobo spec. That said, memory issues are always subjective to the varying tolerances of the memory itself and the motherboard.

I just combined 333 and 266 rated memory in a laptop that's spec'd at 266 - it flies with no issues.

I think you'll have no problems.

Just make double-sure that all the other specs are identical such as voltage, both unbuffered, both unregistered, same latency/speed specs e.g. 2-5-5-5, hopefully both with or both without SPD (or maybe all memory come with an SPD these days?).

Try to run it with the memory, it won't cause any damage. If you start getting errors/crashes, you know it doesn't work.
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I have a 1GB stick of pc4200 (533mhz) ram in my comp at the moment, which is an AMD dual core w/ a 2000mhz MT FSB, in an AMD M2N4-SLI motherboard. Im wondering whether it would be better to start off by buying pc6400 (800mhz) RAM or sticking with what i have, the question is would 4 sticks of RAM running at 533mhz which adds up to 2132mhz total (533mhz x 4sticks) be the same as 4x sticks of pc6400 since the FSB would handle them running the same speed (3200mhz total, much greater than the fastest the FSB can run which is 2000) is having the more powerful ram better if i have so much that the FSB cant handle the speed? Im not really knowledgable in this field so i thought id ask the pros.

heres a link to the motherboard:

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I just purchased 4GB G.Skill DDR2 1066 MHZ RAM and installed it into my motherboard (Gigabyte GA-MA78GM-S2H). I have tried fixing the problem by readjusting the vdimm voltage to 2.1 volts after reading on the G.Skill website that 2.1v is compatible with most motherboards. After doing so, I tried to change the settings in my BIOS to manual so i could reconfigure the RAM to a 1066 mhz option but the max still only shows as 800. Please help me out if you know any way i can change the frequency to the 1066 mhz my ram is actually supposed to be .

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Hi all,

I have Intel's D-915 processor, D102GCC2 Mob, 512 MB 533 Mhz DDR2 (UMAX)

I want to put another 1GB of DDR2 RAM in other slot. Can both work together well.

Also if I will go for 1Gb 667Mhz DDR2.. then ? Any problem..

Plz Suggest..


A:can a 533MHz DDR2 RAM and 800 Mhz DDR2 RAM work together ?

If your motherboard is limited to 533 mhz then a 667mhz memory stick will be automatically underclocked to 533mhz, defeating the object of buying the faster ram. As for if 2 sticks of 512mb and 1gb work together side by side, I've never tried it but suspect it would work. If you get any problems, make sure you put the 1gb stick into the 1st memory slot (the slot your 512Mb stick is in at the moment) and put your old 512mb stick into the second slot. I remember reading that the CPU is happier running a bigger memory stick in the 1st slot. It may be an old wives talke, but its worth trying if you get problems.
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My current ram is DDR2 so will any DDR2 work?

A:If my RAM is DDR2, will any DDR2 work?

Its best to match the speed at which you know your motherboard will operate.

Which motherboard (computer model number would suffice) do you have?
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Hi I am new here long time reader and follower This is 667 Confusion and for DDR2 WEI - 800 DDR2 Same my WEI Same for DDR2 800 and DDR2 667 - Confusion first post and you lot seem mighty helpful I just installed Win RTM x - I had GB DDR RAM as follows GB DDR GB WEI Same for DDR2 800 and DDR2 667 - Confusion DDR GB DDR GB DDR My WEI was for RAM My chipset is INTEL DG WH - latest BIOS Drivers Etc My board supports dual channel DDR RAM upto and has DIMM I purchased x GB DDR and removed the - totaling up to GB GB DDR GB DDR GB DDR GB DDR And guess what my WEI is still for RAM I read my mobo manual and it said that RAM must match in speed and size So I tried as follows Channel GB DDR Channel Empty Channel GB DDR Channel Empty and Channel GB DDR Channel GB DDR Channel Empty Channel Empty My WEI still reads as - My memory timing according to everest is - - - I set the speed to manual is BIOS but am now confused as to why it is still reading as when many users are reporting 's with GB DDR At least it should improve over - please help

A:WEI Same for DDR2 800 and DDR2 667 - Confusion

Did you re-run the assessment?
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Hi I just bought seperate parts for my computer from newegg and I realized that when i changed my board, i forgot to make the ram match! I have ddr2 533 memory but my mobo supports ddr2 800, could the 533s still work?

A:DDR2 533 fit in a DDR2 800 slot?

Yes, they are physically the same but you may decrease the performance depending on what processor you have.
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I have had a DDR2-533 512mb stick for a while and its been using up the first slot for quite a while. I just got 2 DDR2-800 1gb sticks for a gift and was wondering if i should rearrange them in the slots or what? I have 4 slots, 2 orange and 2 green. Any help would be great.

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Why is it that my cpu can only read 2gb?do i need to overclock/underclock the other ram?

A:Mixing ram 1gb ddr2 667 and 2gb ddr2 800

Since you did provide computer specs, I assume 1GB is allocated to onboard video memory.
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I just realized I have some extra ram laying around. Here is the question. I was wondering if [email protected] with my AMD 9950 Black Edition OC'ed to 3ghz would be better than [email protected] with my CPU stock at 2.6ghz. I play things like WoW and Battlefield: Bad Company 2. Mostly new stuff.

A:4gb DDR2 1066 or 8gb DDR2 800

Definitely better off with just 4Gb, and having your CPU OCed than to have 8Gb, and running stock.

The difference probably is minimal anyway.

This is a different scenario if you do alot of photoshopping or RAM intensive stuff, those games won't take up gobs of RAM.
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Hi all

I am building my new computer soon and i am juggling between going with 4GB of DDR2-1066 ram or DDR2-800.

My question is this. Is DDR2-1066 worth paying extra for? How much of a performance gain is there?

Either way, i will be going with 4GB of Corsair XMS2 memory.

Thanks, Nissanman

A:DDR2-800 vs DDR2-1066

Actually selecting between 800 and 1066 RAM in the same brand doesn't present to terrible price penalty.

For 5 bucks more I'd go with the DDR2 1066. That's whether I could tell the difference or not.

Truth is, DDR2 10666 generally runs @ 2.0 volts or better, if you set the BIOS @ 1.8 (the generic DDR2 voltage), it's liable to default to 800Mhz anyway.
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My Motherboard will not use more than 4 gigs of ram.. BUT.. I was thinking about a way to cheat this.

I understand every time you go up from a DDR rating say from DDR1 to DDR2 with 2 gigs of ram.. its really like you are getting a 3 gig stick of ram if it were still rated at ddr1.

This is how the DDR thing was explained to me.

So If I have DDR2 now with 4 gigs.. and swap that for 4 gigs of DDR5.. wont that be like getting something like 6 gigs of ram effectively work/power wise? (like having 6 gigs of DDR2)

A:Upgrade system ram from DDR2 to DDR5 big difference?

Hi there
unless you are an inveterate gamer you'll hardly notice a difference in DDR2 / DDR5 RAM.

For 90% of "typical Users" the performance of your machine will be dictated by the speed of the HDD's.

Slowish Hard disks are usually always the cause of poor performance - assuming you have a decent amount of RAM in the system.

Getting an SSD will pay much better dividends in performance than upgrading your RAM to DDR5.

If you get an SSD put the system page file on this too. You don't need to have the OS on this drive BTW as once the OS is loaded Windows doesn't need to load a lot more. Putting the paging file (and any Photoshop etc Scratch / work files and database indexes on an SSD will speed up your system NO END).

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Hi I have been struggling with a new system Issues Memory System Affecting Reliability DDR2 build for a while now and I am running out of ideas trying to solve the problems I am trying to use two KVR D N G DDR2 Memory Issues Affecting System Reliability ddr modules in dual channel mode these are listed in the bios correctly and on the whole the system works well except I occasionaly get problems with resume from sleep A the machine will restart and then take ages to resume i get a yellow triangle conflict listed against Standard Dual Cnannel PCI IDE Controller in Device Manager not enough resources available B system runs very sluggishly C sometimes get Nvidia driver stopped responding Restarting temporarily restores normal operation I have had a BSOD once at startup referring to a Memory Management Problem swapping the ram sticks over changing slots on the motherboard cured this problem If I install only ram module at a time i dont get any of the above problems if i try to install both together in single channel mode the system goes haywire with multiple graphics driver crashes I have run Memtest for many hours on each module individually and together and not shown any errors The memory was bought at the same time and is identical and as mentioned lists correctly in the bios as running in dual channel mode I know that ' identical ' ram can still have differances due to manufacturing tolerances could this be my problem or is the motherboard being ' fussy ' unfortunately i dont have any matched spare ram to carry out comparison tests to rule out a ram problem at the moment tempted to just go and buy some Event viewer does not give any real clues as to problem areas I have seen other threads mentiioning some of the above problems but not seen any where all these problems are being experienced together at the same time My hair is going grey please help thanks

A:DDR2 Memory Issues Affecting System Reliability

Hi Kris2fer and welcome to W7 Forums

I've checked the QVL list, and those modules are listed. Did you buy these modules as a dual-channel kit of 2 modules, or did you buy them individually? The fact that both modules work when installed individually, but that they don't when used together in either single or dual channel mode would indicate a possible timing issue between the modules. You could try loosening the timings in the BIOS to see if that makes any difference (see pp42-43 of the motherboard manual).
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Hi In 1066mhz 1066mhz stable at run on ddr2 don't ram system. my short my problem is that my ram memorys KHX AD G http www valueram com datasheets KHX AD G pdf don t run stable at mhz but only at mhz Here are my specs Motherboard M A -E CPU AMD Phenom II BE x ghz Don t know why it is mhz above Graphic card Powercolour x RAM KHX AD G mhz OS Windows vista ultimate So i wanted my ram to function on mhz so i have been reading up and starded to try to fix this Firstly i checked the timings 1066mhz ddr2 ram don't run stable at 1066mhz on my system. and 1066mhz ddr2 ram don't run stable at 1066mhz on my system. what timings meant and inserted the correct values in bios for my ram - - - Note in bios i can choose between some low number and not i just hought i mention it Then the system ran unstable and crashed in windows quite fast So i upped the volt to this worked better but still crashed I run at unganged Then i read up about ganged unganged and dual or single channel Discoverd with cpuz that my system was running in single channel mode fixed that sett both memory stiks on same colour bank A and B And now the system atleast don t crash in windows anymore while doing nothing But it still crashes in games and heavy work I ran memtest on it today and it worked without any problems with coverage when i got home and errors The problem is when i have multiple memtest running it gives errors and these are like quot d xxx to d xx did not give an accurate writing quot This i draw the unsupport conclusion that it has something to do with multiple cores tring to use the ram at the same time And the only option i know that effects this is ganged unganged So here i need some help to understand how these things work on the lowest level Does the cpu get the ram values direct to a core or an LX cache Or to some cpu chip controll And how does ganged or unganged affect cores but only ram sticks since what i know ganged means dedicate one stick per core but i have cores Does the memory controller somewho portion up the two sticks in to sections for my cores then Also what does the A mean in my ram model name KHX AD G It don t appear in any other ram model name as far as i can tell I read about ganged vs unganged from this page http ixbtlabs com articles mainboard ddr -yorkfield-phenom-page html What i can gather is that a ganged will perform better then a mhz unganged in all cases except multithreaded write operations how importan is that And anyway in multithreaded games the Phenom x BE will be somewhat better then the i so the memory won t cripple the system if i get it working in ganged mhz i think And most importan can i make this work what is my best bet Please don t be afraid to answer in advanced form i have used computers my whole life and is currently in the first year of a year computer-science university program so i want to learn about computers nbsp

A:1066mhz ddr2 ram don't run stable at 1066mhz on my system.

Kingston says the RAM isn't tested compatible:
This may or may not be your problem, as Kingston is the most wary to list things compatible (Corsair, Crucial and Kingston have a compatibility search, out of the boards that all have, Kingston always has the most low-end RAM modules listed compatible)
I would recommend testing with some RAM that is tested compatible. Make it CL6 or 5 at the same go (or maybe not, not any other memory mfg likes to say that you could run any high-end PC2 8500 RAM either...) CL4 DDR2 800 isn't a bad idea though. Here're Crucial's offerings...

As another thought, what's your power supply model? If it's a 600 W low-quality unit, or even a "950W" low-quality unit, I'd predict that being one very probable cause....
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I have an ECS P4M800PRO-M(V2.0), Pentium D 915 OC to 3.2GHz, 2GB PC2-5300, and I am running Windows XP Pro. My board supports up to 2gb of PC2-4200(533MHz) and that is what I ordered on Ebay but I received 2GB PC2-5300 instead. I'm not complaining except my board only reads 1GB PC2-4200. I know the speed is backwards compatible, but I do not understand why the BIOS only reads 1GB. DX Diagnostic Tool, PC Wizard 2008, and CPUID all read 2x1GB PC2-5300, but the BIOS does not. Can anyone explain this to me.
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which one should i go for with my P5Q pro mobo + E8400

OCZ Reaper 2x2GB 1066 MHz
G.Skill 2x2GB 1000 MHz PQ or
Kingston Hyperx 1066 MHz

with these can i run [email protected]

A:Which DDR2 Ram

I think its much of a muchness but heres the qualified vendors list from Asus P5Q-PRO-QVL.pdf

anything not on that list may give issues and need manual setting for timings and voltages but may also give no problem if you carefully match them to the motherboard
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What would be better from these two??


one of them is DDR and the other DDR2.....and how come the DDR2 is cheaper???

Thanks for your help!

PS: can i use a SATA drive drive to boot up a computer? or does it have to be IDE?

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I see 240-pin and 276-pin DDR2 memory available from various sellers.

From what I see, I am guessing all 276-pin memory is ECC. Is that correct?

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Windows Xp, Media Centre Edition, Ver 2002, Intel Celeron(R) D 3.20GHz, 1Gig Ram.

I want to increase DDR2 Ram but what do I buy, there seems to be diferent speeds, which do I need???


A:DDR2 Ram

You need the RAM that is compatable with your motherboard.
The CPU and Windows version give no hint to that.

As Windows MCE was OEM, its likely to be a brand name (HP, Dell etc), so if you could supply the actual maker and exact model, we could probably help more here?
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I'm pondering upgrading to a Socket 939 MB that supports my older DDR Ram.

I'm curious if I should just hold out and save up for a MB that supports DDR2 ?

I'm not a gamer but I do ALOT of multi-tasking and surfing.

Would DDR2 really help my application ?

A:How much better is DDR2 over DDR ??

Anybody ??
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I just bought a Gateway tower at a garage sale with no hard drive or no memory. I inserted another hard drive from an older gateway machine but I have no idea what kind of Ram I need to get. It has a Pentium 4 CPU. The serial/model number on the box reads : 0025768844/MFATXSTL ELP 500C.

From what I've hard it needs DDR or DDR2 ram but which kind will work on this machine?

A:Do I need DDR or DDR2 Ram?

From the gateway site it uses pc2700 ddr memory.
BTW if you input the serial number into the gateway site, you can see everything you want to know about that system.
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My computer apparantly has 512mb of DDR2 PC2-4200 533mhz Ram in it.I'm buying more Ram for it and am a little confused regarding the DIMM connection numbers for buying it.It seems that this speed ram is 200 DIMM vs 240 DIMM for faster (or newer)ram.Does this sound right as I don't want to make a mistake with an on-line purchase.I checked out the sites that tell you what ram you need but my model is too new and I can't find the proper reference.Thanks for any input.

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I have a budget emachine T desktop I just bought for my son It has the P HT and has DDR ram with Vista Of course it s slow I d like to max out the Ram to gb I m unsure about the correct ram to buy I see PC - DDR2 Ram and up I also see up to MHZ The PC doesn t DDR2 Ram specify these figures Just don t want to buy better ram than the machine supports Does it still work even if it s better than what s in the machine There s slots with in each that I guess become useless because I hear for DDR to work best matched sticks are preferred I see deals all over the net for gb kits for around any brands to stay away from I saw G Skill gb DDR SDRAM mhz pc - for free shipping at newegg I know it s not a good machine but for including a printer and quot flat CRT I simply couldn t find anything comparable I think it might actually work OK with more ram Any input would be appreciated nbsp

A:DDR2 Ram

RAM will only work at the FSB of the motherboard, or at the speed of any slower RAM fitted. Fitting faster RAM will not make it run faster than the FSB of the motherboard.
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will ddr2 ram work on a ibookg4

A:DDR2 ram

Depends if the ibookg4 supports DDR2 ram, please post your current system specs
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For My PC
I have 1 2gb of 667 mhz ddr2 and 1 2gb ram of 800 mhz ddr2... What is the RAM operating speed ?

Also tell me i need to upgrade to 6gb RAM on my desktop !!!
i wanna buy another 2gb ram ddr2 coz my dg33 fb supports ddr2
which shud i buy ???

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First off I'd like to thank loserOlimbs for his help in my last issue.

OK, it's just a quick question. I have 1 gig of dual channel(512x2) DDRII 667 and I was wondering if it is OK to put it in a DDRII 533 motherboard?

I'm at work, so I don't know when I can respond. Thanks.

A:DDR2 667 to 533?

Yes, it's okay.
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i have a motherboard with 2 DDR2 slots, right now each one has 512mb. If i were to remove one off them and insert a 1gb stick, now having 1.5gb installed.

is this possible (Motherboard model on my system specs)

A:1.5gb of DDR2 ram

Yes. The motherboard supports up to 8GB of DDR2 memory.
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Wish to upgrade my memory in my desktop by a further 2 Gb. Currently have 6 Gb of DDR2 800mhz memory in a Advent Centurion cq9204. problem is dunno how many pins the memory sticks have, it aint written anywhere on them.
Any thoughts.

A:Ddr2 ram

you currently have 6gb of ram, what are you doing that you require another 2GB? for majority of people 4GB is enough. So unless your doing some heavy photoshop graphics your probably wasting money on more ram, you may want to use that money toward something else to see more of a performance increase.
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Q: Ddr2

I have 2x2 Gb DDR2 memory, but I would like to have a total of 8Gb, is it possible?


Hello Stefi,

Yes, it sure is. Looking at your Asus P5QLD PRO motherboard specs at the link below, you could just add another set of 2x2 GB DDR2 RAM modules of the same MHz timing to have a total of 8 GB.

Motherboards - P5QLD PRO

If you are not sure of what your RAM timings are, then the free program Speccy can help show what they are.
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i currently have installed ddr2 ram 533 mhz ,i now want to install a ddr2 ram 667 mhz can i operate both of them together?

A:different fsb of ddr2 ram

Hello and welcome to Techspot.

It`s not considered to be a good idea to mix ram speeds, as it can cause stability issues on some systems. However, there`s nothing to stop you from trying. Please be aware that the faster ram will automatically be downclocked to the speed of the slower ram.

Regards Howard :wave: :wave:
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to run dual channel do I have to have my sticks in slots 1 and 3? Right now I have my sticks in 1 and 2 right next to each other. They still register as 2 gigs

A:ddr2 ram

In most cases, you need memory in the same-colored slots in order to ensure dual-channel mode. If it's a newer Asus, chances are you have two yellow slots and two black slots. Make sure you have dual-sticks (same size) in the same color slots for dual-channel.

The best way to tell without opening the case is to download/run CPU-Z and check the "Channels #" for Dual. If it's not Dual, then you can swap your memory around to get this working.
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I'm buying 1 GB of RAM, and my motherboars supports both DDR2 and regular DDR. My question is, DDR2 is better yes, but how much better? Is it worth spending more money on? And is there a noticeable difference?


Short answer,yes it is faster but is it worth it to you.What do you use the computer for?
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what exactly is the difference between ddr and ddr2?

is it that ddr2 has 2x the bandwith?

and which one is better/faster?

A:ddr vs ddr2?

Hi. Here is something to read that will explain it better than I can.
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I was wondering if i get a new motherboard with ddr2 slots, could i still use my DDR ram in there because i have about 2.5 gigs of it and i dont wanna get DDR 2 chips, and i ndesperately need a new motherabord. any suggestions as to what board i could get, i need one with a good sound attachment, sata, . right now i have a gateway 702ge system and im looking for something similar with a little more pep to its step.

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hi guys,in my daughters pc,which is a amd athlon 3.06,she has 1 gig of ddr memory,she wants to put in another 1 gig,can she run 1 gig of ddr2 with it or does it have to be 2xddr ??

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Is there a motherboard that is DDR2 800 compatible and has SLI capabilities???

i have a stick of corsair DDR2 800 and wanted to get an SLI Mobo, if there is no SLI + DDR2 800, should i just go with a Mobo that has DDR2 and forget the SLI or vice versa...this is a gaming PC so i wanted to get the most performance i can get. thanks
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ok this is about to drive me crazy. I already ordered this mobo and some corsair xms 4-4-4-12 ddr2-800 rated at 2.1v. alot of people have been saying the mobo only goes to 1.95v on the ram and therefore alot of memory incompatibilities. but yet a few people said they have got 2.1v ddr2 to work with setting it to 1.95v????

A:M2N-E with DDR2 2.1v??

All you can do is try it for yourself.
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Hi all,
(Don't know how much of this you need to know but...)

I'm about to buy a new machine with an Intel LGA 775 Pentium 4 /D CPU
and a P5RD2-VM motherboard. It's coming with 512MB of DDR2 SD RAM and it says PC4200(?)

I've got 256MB of DDR RAM (PC2100, CL2.5) from my old machine and I was wondering if I can combine them?

I'm expecting a short answer 'no', long answer 'noooooooooo' here!


A:Can I use my old DDR RAM with my new DDR2 ?

No, DDR2 has a different pin count than regular DDR, not to mention different clock speeds. In all essence, you wont even be able to get DDR1 to fit in a DDR2 slot without alot of breaking things.
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Will my DDR2 533 work with this MOBO? I ask because I know AM2 has some issues with compatibility.
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If i get a 2GB DDR2 will it perform any adavantage? I am currently using 4GB DDR2. Will the 2GB be over taken by my 4GB? Im wondering this because one of my games doesnt look as good as i want it plus i want to enhance performance.

EDIT: I have a dv4 1275mx will the DDR2 fit?

A:If i get DDR2...

looking good and performance are two different animals, more so when it comes to laptops.

More memory might be able to yield more FPSs (Frames per Second... speed!) if by that much, better visual of graphics comes from your Video card & CPU and I am thinking that having an Onboard chip as a card, does not do well when playing games.

Now, if you give us a little more feedback of what kind of games and what you use the laptop for, we can perhaps help better?
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What does the following mean:

Cas Latency

and what areas will make it more faster (example will Cas Latency 4 be faster then Cas Lantency 3; ECC vs Non-ECC)? Is higher the voltage better?


A:Ddr2 Ram

You'll want to match RAM voltage to your MOBO, 184pin 1.7v for example.
Lower Cas letency is faster, you can find 2, 2.5 and 3 usually, but the lower the latency the less stable the RAM is. Usually if you find a 3 it is Buffered and/or ECC for stablity.
ECC is error correcting code, it detects when your RAM has errors, which is nice, and can even fix single bit errors. Usually ECC is used in servers and isn't of HUGE importance in most home PCs, registered RAM is recommended if you plan on breaking the gigbyte barrier with ram though.
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hi guys i have just been given a nvidia 8500gt 512mb videocard.the specs say it is a ddr2 pc has ddr1 ram.will it work with my pc?.p.s.sorry about lack of info .xp sp2.


Memory on the video card has nothing to do with memory on the computer.

Please be aware that the 8500 is not a gaming card... unless the games were made before 2004.
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I have 2 gigs pc3200 ddr 400 on my mobo and I'm looking to up grade my ATI 9550 256mb AGP card, which has DDR mem.

My question is will an AGP card with DDR2 memory be compatable with the DDR on my mobo?

If not what AGP card would be a better upgrade?

A:DDR and DDR2

No problem. Memory on a video card does not have to match your MB memory.
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Hi guys a quick question, is it possible to have 2 GB DDR2 800mhz and 1 GB DDR2 667 mhz in the same pc?
here's the link to the pc, im thinking about
ASRock > Products > Nettop Series > ION 330

A:800 mhz DDR2 and 667 mhz DDR2 in the same pc?

Yes, but the DDR2 800 will clock down to the DDR2 667 speed, so they will all run on that specified speed of 667mhz, non dual channel.
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I have a 6GB mix of OCZ Reaper 8500 DDR2 and 9200 DDR2 running at 857mhz, 4-3-3-5-2T in my system and it's great. I also happen to have a 2x 2GB kit of G.skill around here.

I am contemplating swapping the 2gb of 9200 in my system for the 4gb of G.skill giving me 8GB instead of 6GB. I'm mainly just curious if I can make it work more than anything, but curious if there is any real point of 8GB vs 6GB of DDR2.


A:8GB vs 6GB DDR2

If its just an experiment go for it and have fun, but unless you really need the extra 2gb, I doubt that you're going to see increase in performance...
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is it advisable to combine ddr with ddr2? what's the difference between the two? thanks

A:ddr and ddr2?

NO. and you can't. Please bother to read the FAQs and the guides regarding ram.
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Q: Ddr2

Hi, lately i have been hearing that the DDR2 RAM has been becoming standard...Can someone explain to me why? I always though that DDR4 was the more advance ones.


i think you're being confused with DDr4 with ddr 400. DDR400 is basically ddr. With 2700 and 3200 version etc...

DDR2 is faster.
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i have a laptop toshiba a 300 15 c core 2 duo t 8300 2,4 ghz with 800 mhz bus speed processor , its suitable to install ddr2 800 mhz on my laptop, my rams are 667 bus speed

A:DDR2 800 mhz bus speed

probably not. It may not support ram that high, but its possible that since its 667 it may also support ddr2 800. You may just have to increase the voltages a tad bit on the new ram through the bios
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Well right now I have DDR ram inside of my computer but I was wondering would DDR2 ram work?
Would it be okay if both of them were inside the computer at the same time?
I know completely nothing about computers so could you guys please help me?

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What is the exact difference apart from physical one?
In terms of gaming does it matter?
Does it matter if you're looking to change parts of the PC such as graphics card / processor?

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I have a laptop with 512mb ram and i want to put another 512mb stick in it. I have used cpuz to find out the type of ram thats in there now; and that is pc2-4300 (266mhz), ive looked on ebay and i can only find pc2-4200 533mhz. So im not entirely sure what type of ram i need. I just wanted to post here. So i dont end up buying the wrong type of ram.


A:DDR2 Laptop Ram Help

Ive been reading on the internet that ddr2 is backward compaitible, would does that mean? sorry im a bit of a noob with computers, well thats why im here lol

Any help would be greatly appreicated
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I'm contemplating upgrading my computer piece by piece since I don't have money for a full overhaul right now. I definitly want to get a new intel core duo 2, probably the E6750 processor model. I also want to go for a P35 chipset motherboard (i dont care for the brand, as long as its a decent one e.g. gigabyte intel asus etc).

My problem is that i am not sure whether i should spend the extra money to go for DDR3 as of this moment or should I wait and buy a board that has DDR2 support and go for DDR3 way later like the next upgrade (which I can just upgrade the motherboard if i ahve to).
what are your opinions?
thanks, adam

A:go for DDR2 or DDR3?

If you are a serious gamer, go for ddr3 for the best performance
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I have Windows 7 32-bit and 2 x 1GB G.Skill DDR2 1066 modules installed.
- I am thinking of adding one more G.Skill DDR2 stick (1GB).

Does it make sense just to install 3 GB?

Thank you!

A:DDR2 3 DIMM, 3GB, 32-bit


There's kernal patch for 32 bits to support 4 gigs
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I just ran CPU-Z to find what chipset I had. Got what I wanted but I was surprised to see my "DRAM frequency" was listed as 266MHz. My machine supposedly has DDR2 SDRAM running at 533MHz - does the 266MHz translate to 533MHz because of the "2" in DDR2 ? or was I cheated by my computer vendor ?


A:DDR2 speed

Possibly. Try this tool to get even more info:

By the way what computer Make and model are we talking here?
But just check the above first
You can attach the report if you like (note I say attach, not paste)
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I could go with the tried and true Northwood core and settle for 200 MHz DDR and save some money or I could go the somewhat sketchier LGA775 route and spend more and get a computer that doubles as space heater but be able to use DDR2.

Based on the tradeoffs, what would you go for?

Thanks much!


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Hi, does ddr2 677 really make that much of a difference compared to 533?

A:Ram Speed DDR2 533/677

Does having a 3.2GHz P4 make that much of a difference over a 3.0GHz one? Same answer.
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I have RAM slots in my motherboard but I managed to somehow fry one of them Now I m stuck on gb and I m feeling it every day I d like to upgrade to gb but I haven t been able to find any Even when someone sells gb it s usually just bars of gb Now I ve googled around and saw a few places online that sold them but they were usually for or more I m not into that kind of money and seeing how DDR is dying I wonder if I can manage to get some used RAM for a cheaper price The problem is apparently a lot of those gb in one stick are for servers and will not work for desktop PCs Furthermore I have no idea how to check if the desktop 4gb for in RAM PC DDR2 one a bar RAM I found will fit work in my PC So if anyone has 4gb DDR2 RAM in one bar for a desktop PC a few minutes spare and maybe find some for me I 4gb DDR2 RAM in one bar for a desktop PC d 4gb DDR2 RAM in one bar for a desktop PC really appreciate it I don t know what information you need to know so ask me anything My motherboard is nVIDIA NF-MCP Socket AM nbsp

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If i remove the ram then the computer starts up....

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can anyone give me some information ? i am using asrock motherboard pt880 4core, can i use2 ddr11memory cards 240 pin into two slots provide and at the same use 2 ddr2 memory cards 184 pins in to the slots provided, in other words i will be using 2 cards of 240 pins and 2 cards of 184 pins at the same time, or do i need to use either of the 2 cards at a time?

A:DDR1 and DDR2

2 x DDR2 DIMM slots
- Supports DDRII667/533 non-ECC, un-buffered memory

2 x DDR DIMM slots

DDRII and DDR are supported separatelyClick to expand...

ie Just use 2 DDR2 Dimm cards only


DDRII and DDR2 are the same thing
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If you had a choice, DDR2 or DDR3 and why? Trying to figure this out for my new computer.

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Appreciate the help!!!

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Hi all,

I currently have 3Gb of DDR2 memory, in 2 slots (1x 1GB, 1x 2GB) - however i wanted to increase this to 4GB or even 6GB. Basically i was wondering if the following factors would affect my choice:

1-Is there a limit of how much RAM i can have in my motherboard?
2-Can i cross between DDR3 and DDR2 memory in the two slots, or do i have to keep the same type in each? - (and also, whats the difference between the two)

Thank You

A:Can I use DDR2 and DDR3 RAM together?

If your motherboard currently supports DDR2, then you can only add DDR2. They're not slot compatible.

Which motherboard do you have? Most modern motherboards should support 4 to 8GB of RAM.
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Is it possible?
i saw the his hd4650 ddr2 card hes
600 core clock
800 memory clock

And the normal hd4650 hes only
600 core clock
and 400 memory clok

how it could be?

A:His hd4650 ddr2 vs hd4650 ddr2

usually the memory clock differs if the system uses different module i.e. DDR2 vs GDDR2.
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hello guys just a little help needed is there a way to find out what type of memory i have in my pc with out taking it out
i no its ddr2 but i need to no the best speed and all the other stuff
i want to take it from 256 ddr2 to 2 gig
2x 1gig sticks but i dont no which type to get
i have a packard bell i start with windows xp home
thank you any help will be good
any more info i will try to help

A:ddr2 memory

Go here, click scan my system, it will show what RAM you have in there, as well as what RAM (of Crucial's products) will work in it.
You can also go to Corsair's site or and manually insert your PC model number to find out which of their products work in your PC (to do some price comparison)
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what is the difference between ddr2 and ddr; and pci express and agp?????????????

A:Ddr2, Pci Express

speed and money
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I'm just wondering what an ideal DDR2 RAM timing setting would be with my computer. Currently I'm running them at 4-4-4-12.

Thanks, Alex.

A:DDR2 RAM timings?

just go with what it says on the sticker; use the corresponding voltage too. if the modules don't have stickers just use the by SPD option or Auto setting in BIOS. there is no ideal settings, memory kits differ by brand and speed.
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Hi this is my first post in this forum but i have been visiting techspot for for quite some time now and i have to say it is nice place to learn and read about computers I am about to get q to replace my e I have overclocked e ghz and i am going to overclock q when i get it But the problem is my Ram I have x gb ddr mhz ram two sticks RAM voltage DDR2 and OC of patriot and one transcend To be sure my Ram will DDR2 RAM voltage and OC work fine with q i tried them out to DDR2 RAM voltage and OC see how high i can push them On my dissapointment i just cant get them stable higher then fsb Which doesn t make much sense as i have been running them at for some time and even mhz on auto voltage If i change increase timings system doesn t start and it says oveclocking failed right now i am at volts Default i think The only stable timings are - - - I read this about ddr ram According to JEDEC the maximum recommended voltage is volts and should be considered the absolute maximum when memory stability is an issue such as in servers or other mission critical devices In addition JEDEC states that memory modules must withstand up to volts before incurring permanent damage although they may not actually function correctly at that level Wikipedia Click to expand So could i push my cheap ram to volts Please don t tell me to buy different ram or CPU I have Asus p kc MB and i read somewhere it doens t like overclocking ram thnx for help nbsp

A:DDR2 RAM voltage and OC

Hi wert56boom
if you are OC'ing via an FSB push, the weak link can be any component or chipset. the fact that you have mis-matched ram modules could be a likely suspect. is you are at 2.1 now...I would stop just shy of guaranteeing you that 2.3 will not give you stability, and probably burn up your ram. A few of the high performance brands have an overvolt guarantee up to 2.1v Take what it will give you @ 1.9v and call it good unless you are prepared to replace it.
I would try removing the lone Transcend module and see if that yields better results. you will lose 1 Gb fd ram, but gain dual channel until you get different memory. and it will let you know if the mixed modules are the limiting factor. The 880-890 Mhz you are referring to is the effective DDR rating 2x400Mhz = 800Mhz DDR2
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I have a chaintech 7NJL6 mobo running XP Pro with SP2. Manual says to use 184 pin DDR memory up to PC 3200. I have 512 MB (2x PC2700) now. I have read that faster memory will adapt to a slower mobo so I ordered PNY Optima 240 pin DDR (PC 5300) and need to know if the new memory will work for me. The pin count difference has me concerned.

Manual also says that I can load slot 1 and slot 3 to get dual channel capability. I read that slots should be filled in sequence, so am leery of skipping slot 2. Your thoughts?

I am really looking forward to the performance boost that 2 GB of RAM will give my XP machine (besides, the price was right!). Thanks.

A:240 pin DDR2 RAM in 184 pin DDR mobo

Send the RAM back, it won't work. 240 pin is DDR2, DDR2 is not compatible with DDR, it simply will not fit in the slot. You can get 2GB DDR400 (PC3200).
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sorry for my englesh.

A:DDR2 RAM on an old motherboard

I happen to have that motherboard in one of my PCs and it is not compatible with DDR2 RAM. DDR2 is not backward compatible with DDR RAM. For one thing the notch is in a different position so you can't physically put in in the slot.
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ive recently purchased some corsair xms2 dd2 ram (2gb x2) and installed it successfully but when i check my system information, its says i only have 3gb of ram installed??

whats going on? how can i change this

A:DDR2 RAM Issue?

What you are seeing is normal for 32-bit versions on Windows. Windows reserves 512 MB PCI address space for itself, your graphics card uses some space (either PCI address space for add on cards, or RAM for on-board graphics), other hardware uses some; and 3 GB is left.

If you want to be able to use all 4 GB, you need 64-bit Windows and a motherboard that supports 8 GB or more RAM.
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i recently aquiered 4Gb of DDR2 ram from a friend as he no longer needed it. the problem is that my computer supports DDR ram. i have seen online that there are such things as DDR to DDR2 converts.

my question is where can i buy such a thing online and how much would it cost me.


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I'm buying some corsair xms2 ddr 2 does anyone know which cl is better 4-4-4-12 or 5-5-5-18 and which one might over clock best? thanks for your time.

A:Solved: Ddr2 cl ?

The lower timings are "quicker" As for overclocking, it would be best to buy faster ram; ie if you are going to buy 800, then buy 1066. This will leave you a LOT of room for upping the fsb.
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Two DDR2 sticks:
OCZ PC2-4200 Enhanced Bandwidth labeled for 3-2-2-8
PDP Patriot PDC22G4200+ chips labeled for 3-2-2-4

Both chips are marketed to run at DDR2-533, but obviously can be overclocked. My question is which chip would be better? When clocked for DDR2-667, does it increase the bandwidth for the chip from the DDR2-533 rating of 4.2GB/s? Would it be better to just go with a DD2-667 'labeled' stick like the OCZ w/ 4-4-4-8 and bandwidth of 5.4GB/s??

Hopefully someone here knows something about overclocking or maybe could make an educated conclusion by these reviews:
OCZ PC2-4200 EB
PDP PC2-4200 Patriot

Is it possible to just use similar tests from each review like the Sandra 2004 Standard Buffered Memory Test at 667 speeds??

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A:DDR2 vs DDR3

Yes the DDR2 modules and the DDR3 modules both have 240 pins. The keyways are in different locations so you can only install DDR3 modules in a DDR3 motherboard. DDR's highest speed is 400MHz. DDR2's highest speed is 800MHz. DDR3 highest speed is 1000MHz
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A:Ddr1 Or Ddr2

If you don't know what Memory you have go here;

Download SIW Standalone. This is an executable that doesn't have to be installed on your machine. Just download it to the desktop and launch the application. After the application launches click on Memory in the left pane, and when the right hand side pane opens it will tell you what Memory you have.

If you want to delete SIW Standalone just right click on the desktop icon and delete it. You may want to keep it since it is handy for finding information for your machine.
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A:memory ddr2

High density memory is basically factory seconds that will
only function on certain motherboards at full capacity.
Always better to stick with low density.
Branded memory,like kingston,corsair,OCZ,crucial and so on
are usually low density.
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Would 4GB of DDR3 be the same as having 8GB of DDR2?

Which would you rather have?

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Hey, my grandparents bought some crappy acer computer, and we want to upgrade it a bit.
The thing is, I need to know if the Mobo is compatible with DDR2, and if it has a PCI-E slot.
The problem is, I can't find anything about the mobo on the web. I have SIW and everest, but even there I can't find it.

Edit - Without opening the case, cause else I would've done that

Greets, Thas

A:PCI-E, DDR2, how to find out?

If you launch SIW and click on memory in the left pane, what is indicated in the right pane?

Also, what is indicated for video?
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Which one is faster,stronger,better?(especially for high end gaming and HD blue ray movies)

CORSAIR DOMINATOR TWIN2X4096-8500C5DF DDR2 4GB (2X2GB) PC2-8500 (1066MHZ) CL5 DUAL CHANNEL KIT Timings: 5-5-5-15 (CAS, tRCD, tRP, tRAS)
CORSAIR TR3X3G1600C8D DHX DDR3 3GB (3X1GB) PC3-12800 (1600MHZ) TRIPLE CHANNEL KIT Timings: 9-9-9-24 (CAS, tRCD, tRP, tRAS)

My CPU is Q6600

A:DDR2 CL5 vs DDR3 CL8

DDR2 provides the best value for the buck. Having said that... if you are installing a high end CPU, DDR3 is best for you!
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I ve finally upgraded from a win setup and I ve got everything working except my nd stick of ddr Both sticks work independently They re both Kingston DDR gb sticks with the same model number The ram chips themselves are different I m installing them in a Biostar AM ver mobo The board accepts ddr new toys) help (old guy, ddr2 and has slots labeled dimma dimmb dimma and dimmb The manual says to use a pair of sticks in dimma ddr2 help (old guy, new toys) and dimmb first to unlock the dual channel When both sticks are inserted I get the no memory post error Any ideas I ve also tried the ram in dimma and dimmb with the same error The manual also says that the dram bus width needs to be the same either x or x I m not sure how to check this but like I said the sticks are the same model number Oh please tell me I m stupid and you ve got a simple fix nbsp

A:ddr2 help (old guy, new toys)

I'm stumped on what is wrong; but, I can tell you that if the chips are the same model number, you need not worry about bus width not matching.
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Okay I'm a noob, we all know this. When I buy ram and it says ddr 1000 or 1200 is this the native speed that it runs at from factory. Is the concept same a cpu's as you buy a cpu that runs at 800fsb or 533fsb or w/e. Then you change the fsb through bios etc? Same concept right? I was wondering if I bought pc 10000 ddr2 would I be able to run it in a mobo that stats 6400 is the highest I can run. So is it more so dependent on the ram or the mobo?

A:ddr2 memory

Now your problem is which RAM to buy? What does that MOBO say for you to buy? Look in your manual it should tell you, but better yet go to the MOBO and see what you can buy?
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A:DDR2 vs DDR3

The difference will be negligible in games and every day use. You're better off sticking with the 4GB of DDR2 especially if you're only going to be getting 2GB of DDR3.
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I am getting 4GB's of Ram for my new computer because I plan on installing Vista 64 Ultimate. I have been thinking about getting the 4GB of Corsair Dominator from the Egg. But I am trying to figure out if that would be the best buy for me. I do lots of gaming and downloading. I want the Ram for the games and for Vista. The Egg has it listed at $337 for 4GB. But I have also read many people say if you get 4Gb to try and get 2 X 2GB. But the dominator only offers it in 4 X 1GB. I do plan on overclocking. So should I get the 4 X 1GB of the Corsair dominator or something else? I have a Maximus Formula motherboard.

A:Bets 4GB of DDR2

IMO 2 sets of dual channel (2x 1gig in a dual channel, 2x 1gig in another.) sounds better than 1 set of dual channel (2x 2gig). So yeah 4 x 1gig sounds good.