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DDR2 Memory -- faster = better?

Q: DDR2 Memory -- faster = better?

I need to buy memory for a ECS P4M800PRO-M v2 motherboard with a Pentium D 805 CPU. This system normally runs a 133 MHz bus clock giving specified 533 MHz memory speed.

However, I am planning to experiment with overclocking, so thinking to buy 667MHz (PC2-5300) or even 800MHz (PC2-6400) memory.

My question is, will this faster memory work at the normal 533 MHz speed, in case the overclocking does not work...?

Has anybody run a system with faster memory than specified... or have any comments...?


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Preferred Solution: DDR2 Memory -- faster = better?

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A: DDR2 Memory -- faster = better?

this should work; the memory will just run at the slower speed.

Make sure you buy high quality memory. Check the recommended memory list for the mobo, and buy sticks that closely resemble the recommended ones if you're buying faster ram.
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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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Have a Toshiba A665-S6095 laptop running 64-bit Win 7. It has a paltry Windows Experience Index of 4.6, which is the Graphics score (all the others average 5.6). I assume the integrated video shares memory with the computer's RAM, which is only 2 x 2GB (total of 4GB) DDR3-532 CL=7. For about $40 I can replace the DIMMs with 2 x 4GB (total of 8GB) DDR3-1333 CL=9.

Is that likely to make the computer perceptibly faster or a waste of $$?

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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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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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Im building a computer from scratch - looking for a very high end system.

In your opinions, should i buy ddr2 800, or ddr2 667 and tweak the voltage and timings so that its as good as 800?

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Hi Here's my system: Win 7 64b Home Premium, CPU AMD Phenom 11 X4 945 3Ghz Socket AM3 Motherboard Gigabyte GA-MA74GM-S2 Bios v. FK, Memory Crucial 4g DDR2 800

I am looking to add memory to 8g. I will need either 8g modules or two 4 gig. I am not finding reasonably priced memory for the MB. The system is not that old. What am I missing? How much do I have to spend?

A:DDR2 Memory

There's a couple of things working against us (my system also uses DDR2 RAM).

1. DDR2 is obsolete, and has been for a while. As stocks diminish the vendors are going to charge more it.

2. Even though the recent fire in the Hynix factory probably didn't affect availability of DDR2, it was a good excuse to raise prices across the board.

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i have a mach speed p4mst-890 mother board. it will take up to 4gb of memory. ddr2 533 memory. but the memory i've looking at does not say whether it is high or low density. the manual does not say which...... so would hi or low work in my system.... thank's......

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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I am considering buying the new Macbook Pro Core 2 Duo that was announced a couple of days ago. One of the configurable options is to load it up with max DDR2 RAM of 3 GIG in 1x2Gig and 1x1Gig arrangement.

I heard about the dual channel memory benefit of accessing in full 128 bit mode when the RAM are installed in pairs.

So my question is if I upgrade to the above configuration, would that wipe out the benefit of 128 bit access?

Thanks very much.

A:Question on DDR2 Memory

Yes it would. Get 2GB in a 1GBx2 configuration i.e. one 1GB stick in each slot and it will enable u to use dual-channel mode for increased performance.
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hello guys hope you can help
just bought a new kingston 2gb ddr2 pc2-5300 ( 667 mhz )
and when i went to find it all it shown was the 256 ddr2 stick that had in when i started
i was told by web systems that it was fine for me to put my old one in as well
when i go to propertys all i have is 191 of memory avalible
any help would be great
thank you ........wayne
i have a packarde bell i start 1269i
window xp home

A:ddr2 memory not found

Is this a different make of ram from your old?
It sounds like the new memory is not compatible with the old ram or your machine.
Try swapping the ram to see if they work on their own.
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Need help. On my Gigabyte EP43-UD3L mobo ; Q8200 2,33GHz I have 2x1G OCZ PC2 9600 [1200MHz] memory. My question is can I add two more 2Gb sticks let's say PC2 6400 [800MHz] or PC2 5300 [333 MHz]
Just what it shows in CPU-Z v.1.53 > CPU FSB = 1333MHz and memory runs in 333MHz Thanks in advance

A:Can I get DDR2 memory match

PC2-5300 memory is 667mhz when you factor in double data rate. As far as adding slower memory your speed will automatically be reduced to the slowest memory speed provided other things like timings and voltages are capatible. Mixing memory is always similar to a roulette wheel when things are mismatched.

The ideal solution when going to add more memory on any system is the same make, type, and speed even from the same manufacturer's batch to avoid ending up with problems from mixing. You wouldn't performance memory with standard dimms being two different types. In some cases a minor difference in timings can see an adjustment in the dram timings setting in the bios.

These are all factors to consider.
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Is It Better To Install Ddr2 Memory In Matched Pairs Or Can They Be Added One At A Time Mixed With Different Memory Of The Same Size,also Can You Recommend A Good Brand Of Memory.thanks In Advance.
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Hello Guys,
I have recently joined this forum just because of some issues which are colliding in my mind..
Actually I want to know that Is DDR2 an excellent memory for automotive and industrial to server, consumer, networking, and computing?

A:Is DDR2 excellent memory?

Is there a reason for asking?

You can't just pick and choose the memory type you want. The memory type must match the design called for by the motherboard. DDR3 is the latest memory design and DDR4 will probably be available before long.
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I ve been running on gb of memory Kingston mhz for a while Recently i ordered another gb same and installed it just like the first But now my computer won t boot up I tried swapping the modules but same result Then Problem Memory DDR2 i removed the old one and replaced it with the new and then it worked But not with both of them The motherboard Zotac nForce i-ITX Processor Support - Intel Core Duo - DDR2 Memory Problem Intel Core Quad - Intel Core Extreme - Intel Pentium - LGA Socket - Up to MHz FSB Chipset - NVIDIA GeForce - NVIDIA DDR2 Memory Problem nForce i Front Side Bus - MHz FSB HT Support BIOS - Phoenix Award PnP Flash ROM BIOS Memory - Two DDRII Sockets Supports up to GB DDRII I O Onboard - One Channel Parallel ATA Connector Support up to Devices - Two Serial ATA II Ports - One HD Audio Port Line-in Line-out MIC-in - One PS Mouse Port - One DDR2 Memory Problem PS Keyboard Port - One Serial Port pin header - Four USB Ports on Back Panel Four USB on Pin Header - One RJ Port - VGA port - DVI port LAN - Onboard Mb s USB - Integrated in chipset USB x The memory modules Kingston GB Memory Module v pin MHZ assembled in China Kingston GB Memory Module v pin MHZ assembled in Malaysia Any ideas nbsp

A:DDR2 Memory Problem

Remove your CMOS battery. Wait an hour, then reinstall your BIOS.
If that doesn't work, your board needs work.
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Hello Guys,
I have recently joined this forum just beacuse of some issues which are colliding in my mind..
Actually I want to know that Is DDR2 an excellent memory for automotive and industrial to server, consumer, networking, and computing?

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Hey all, New specs!!!

Anyway i have bought a new memory kit for my single 1GB DDR2 800MHz stick.

It is a Hyundai 1GB DDR2 667MHz stick.


Windows boots quite slow so i checked CPU-Z and it reported my RAM speed as 200MHz (400MHz DDR2)

I've looked into bios as to why but i have not changed anything. In bios RAM SPD is set to Auto and in Overclock iset it to 533 but it does NOTHING.

Please help and i will share some rep.


A:DDR2 memory problems

Hello ,

To check the RAM issue, I better suggest you to run Memtest86+. This test will take some time, so keep patience.

Memtest 86+: An advance memory diagnostic tool

Please report your result after running Memtest86+.

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I currently have 2 x 512 mb PC5300 Elixir in dual channel mode.

There are 2 free slots on my mobo - can I buy 1gb of memory and put it in one of those free slots?


A:extra DDR2 memory

Yes mate you can add it to one of those free slots but i think you should buy matched 512 sticks and put them in dual C.M as well

Look at : Corsair TWIN2X1024A-6400C4
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Thanks in advance

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Can you just take a computer that is running DDR2 memory and change the memory to DDR3 or do you have to add other items?

A:Substituting DDR2 Memory for DDR3

Memory controller and DIMM slots have to be DDR3 compatible.

So no, you cannot.

With an AM3 CPU you would need a new motherboard.
With any other socket CPU you would need a new motherboard, and possibly a new CPU.

Currently, DDR2 is better for most systems anyway.
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If you put DDR2 667 memory in a motherboard designed for DDR2 533, will it still work?

A:Is DDR2 memory backwards compatable?


667 is the fastest that it is rated to run at, it will run at all speeds lower than that including 533

unless you're planning to overclock, then there's no reason to spend the extra money on thr faster RAM because it will still run at 533
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A:Anyone ever heard of this problem with ddr2 memory?

Am I the only that feels that this post belongs in this thread?
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Afternoon I ve recently bought an ASrock core dual-SATA motherboard which has dual memory DDR DDR capability I ve been running on GB single stick DDR memory for a while and decided to upgrade to upgrading memory to Problems DDR2 x GB single stick DDR both exactly the same I would have thought by simply turning everything off removing the DDR memory and installing the x DDR memory sticks into the relevant DIM s and rebooting would be all I needed to do However I manage to boot into windows up as far as the welcome sound and the system makes a painful noise and re-boots After that it attempts to boot back into windows and all I get is a black screen I ve had the unfortunate experience of re-installing everything and I ve rolled-back to my original DDR memory and the computer works fine By going into the Problems upgrading to DDR2 memory bios whilst the DDR memory is installed I can see that the system recognises it but I m at a loss as to why I can t go any further I ve carried out all the usual checks eg cards being in securely no static etc etc I ve cleared the CMOS and rebooted with the DDR memory in and booted into windows Everything went fine my flash player updated itself rebooted as normal but this time I only made it half way through the boot process before it rebooted itself again It then took me to the safe mode option however my USB keyboard was disabled so I powered off and replaced the keyboard with a standard PS connection and rebooted I then received this black screen message WINDOWS COULD NOT START BECAUSE Problems upgrading to DDR2 memory THE FOLLOWING FILE IS MISSING OR CORRUPT WINDOWS SYSTEM CONFIG SYSTEM I powered off replaced the DDR memory to the original DDR everythings back to the way it was before and runs smoothly This morning I cleared the CMOS again Re-installed the DDR memory and booted into windows Everything worked okay I left the computer running all day and I ve had no Problems upgrading to DDR2 memory problems at all Then I reset the computer It appears that I can leave the computer running for as long as I like and the default BIOS settings will run with the DDR installed As soon as I reboot the computer however that s when everything goes wrong Does anyone have any other ideas they can think of I ve heard that sometimes DDR ram needing a little bit of extra juice but then I have no idea on how to change this Any help would be gratefully appreciated nbsp

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can we split ddr2 memory to be use better in some programs>?

and what it is virtual memory, and what is for, and to have better virtual memory what to do?

A:can we split ddr2 memory to be use better in some programs>?

AngelOfLighT said:

can we split ddr2 memory to be use better in some programs>?

and what it is virtual memory, and what is for, and to have better virtual memory what to do?Click to expand...

Hi there. I'm not quite sure what you are asking in your first question.

Virtual memory is exactly that, its not actual RAM memory (DDR & DDR2 etc) it is a section of your harddisk that your OS will use as make-shift memory when you have insufficient RAM memory. This in turn means that it is slower and doesn't perform as well as normal memory, due to your harddisk being much slower write/read than RAM memory.

So, in conclusion, RAM memory > virtual memory, however if you don't have enough RAM memory then you can edit how much virtual memory you would like to have (at least in windows you can, although not sure about Vista).
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Hey Guy's,

Question my friend asked me today and I was unsure of. He would like to know if he bought a mother board that use's DDR3 memory can he use his current DDR2 memory Dim's. I was unsure of this because I have heard mixed storys about this.


A:Can a DDR3 MotherBoard Run DDR2 Memory

Nope, they're notched differently,
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A:1000mhz ddr2 memory question

You'd have to overclock to get the full 1000Mhz speed from the memory, and unless you overclock the CPU with the memory there is little gain in running faster memory.
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Corsair value select DDR or Crucial DDR which is better Hi I am in the process of building a PC and I need some advise as to which type or brand Need 667MHz help choosing memory DDR2 of memory to use that will keep my system stable Also in terms of quality and performance I have purchased the following parts for my configeration and I will Need help choosing DDR2 667MHz memory be using of my existing HD s Hitachi Deskstar k SATA GB Gigabyte GA- I X Royal Need help choosing DDR2 667MHz memory Motherboard Intel Pentium Socket GHz MB FSB Sapphire Technology Radeon X XT MB PCIE DVI I will mainly be using it for general PC use occaisional gaming video encoding watching movies WinRAR and Azureus P P I am thinking of buying the following memory modules but not sure if I should choose a Corsair Value Select or TWIN X - C MHz Crucial Part Number CT KIT AA Module Size GB kit GBx Package -pin DIMM Feature DDR PC - Specs DDR PC - CL UNBUFFERED NON-ECC DDR - V Meg x I done this memory compatibility search on the Crucial website and the above was included among others In terms of quality and performace is the above Crucial GB memory a good choice for a for this system or should I choose a Corsair Value select Is there a lot of difference quality and performace wise between Corsair and Crucial memory Many Thanks nbsp

A:Need help choosing DDR2 667MHz memory

the quality between the brands is about the same- they're both very good. RTFM to determine what the manufactuer prefers.

If you don't plan to overclock (and I don't recommend it) Value select memory is fine. There is a very good article on the screen about this when hit the techspot homepage.
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Also, I am wondering greatly if I buy this new RAM, and it operates at PC2-4200, 5200, or 6400, will this disable the dual channel? What PC-xxxx RAM should I go for?

Also what is a good CAS latency to look for on RAM? What exactly does the PC2-xxxx number refer to?

Thank you.

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A:DDR2 and DDR3 memory support for the GA-X38-DS4?

The board only supports DDR2. While the chipset may support both DDR2 & DDR3, it's upto motherboard manufacturers whether or not to design motherboards with support for only one, or both.
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Is this a conflict with the 2 different types of RAM, or are the two types seperate entities?


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Hi I bought a new custom built Pc and it came with x Corsair ddr chips already in the PC I bought a pair of gb super talent sticks for my not realizing that the timing for important latencies DDR2 matching when memory? Are these do not match the corsair timing specs will this cause my pc to act up Are latencies important when matching DDR2 memory? i did get a blue screen error msg that had x cant remember the last i googled and said it was a ram memory issue also does the placement of the memry modules mater into the board i have slots black and yellow offset thaks in advance here are the mobo Are latencies important when matching DDR2 memory? and ddr specs ASUS P N-E SLI LGA NVIDIA nForce i SLI ATX Intel Motherboard ------------------------------------------------------------ Manufacturer SUPER TALENT Brand SUPER TALENT Model T UB GC Type -Pin DDR SDRAM Speed DDR PC Cas Latency Timing - - - Heat Spreader Yes ------------------------------------------------------------ -------------------------------------------- CORSAIR CM X A- XMS - MB - - - DIMM Black XMS MHz - - - - T CM X A- TWIN X A- nbsp

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Hi Guys,

Acer T180 with 2 X 512Gb PC2-4300 CL4 sticks. CPUZ reports as running at 100.5Mhz?

I want to add more memory.

Can I add 2 matched sticks of PC2-5400 CL4 1GB each
or 2 sticks of DDR2-5300 CL5 1GB each.
Both of the above at 675Mhz.

I have 4 slots each max of 1Gb; 2 used as above, 2 free.

What are the rules and implications for matching memory?
Is it correct that whatever I put in will run at the slowest speed i.e. the original PC2-4300 above?
Does it matter which slot pairs are used for which sticks e.g should the 1GB sticks go in the first two slots rather than the last.

I also see specifications like 5-5-5-15 , does that matter.

Wow, sorry for all the questions!


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Just had a new P4 motherboard installed: ECS P4M800PRO-M478 (V1.0) which replaced the original Celeron board that died suddenly. The new motherboard has 4 memory slots, 2 for DDR1 and 2 for DDR2. This board has a maximum 2GB capacity. The manual says you can't mix memory types. I read that to mean you can install up to 2GB in the DDR1 slots or up to 2 GB in the DDR2 slots but 2 slots will always be unused. Is this correct? The manual should make it clear but but to my mind it doesn't. Thanks for any clarification.

A:Solved: confusion re DDR1 and DDR2 memory


I read that to mean you can install up to 2GB in the DDR1 slots or up to 2 GB in the DDR2 slots but 2 slots will always be unused. Is this correct? Click to expand...

Yes . . that is correct . . while the board can use either types, it cannot use both.
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I have an Asus P5W64-WS board. It runs the 975X chipset. I have upgraded to the latest BIOS and installed an Intel E6850. All is well, and not unexpectedly my temps have dropped about 8 degrees centigrade. My bus speed is reported as 333, FSB as 1333, and my multiplier as 9. My question is, what is the optimal DDR2 memory speed that I should pair with this processor? I am not going to overclock or game, so I am not as concerned about latency or tweaking, I just want to know what the optimal memory speed would be to match the FSB, etc. This computer is used as a trading workstation, so stability trumps wringing the last bit of speed out of the the system.

Thanks for any suggestions.

A:E6850 & Optimal DDR2 Memory w/975X Chipset

First of all, nice board

The 975X chipset supports 1066MHz RAM (PC8500) so no reason to use any other lower clocked RAM with that CPU.
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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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DDR2 667 @ CAS Latency 5
DDR2 533 @ CAS Latency 4

Is there a way to tell? Or is speed based on even more factors.

A:Which memory is faster?

Speed will be primarily based on what you laptop actually supports. What's the maximum memory clock rate that the laptop will actually support? BTW, the different CAS Latency isn't a factor here, since the slower memory will also have a longer CAS time.
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So what's faster, 4 gig of dual channel memory or 6 gb of total memory single channel?

edit: I found another pair of dual channel 2 gb x 2 so...if I have 2 x 1gb dual channel and 2 x 2 gb dual channel I should retain dual channel mode correct?

A:Which memory build would be faster?

You can get answers to this in your other thread. Try not to make duplicate threads for the same question. I am going to ask a Mod to close this duplicate. please continue this here:
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This is the memory in thinking about buying:

Corsair Vengeance Performance 16GB (2x8GB) DDR3L 1600MHz PC3 12800 Laptop Memory Kit CMSX16GX3M2B1600C9 at

Right now I have 8Gig 1600MHz 11-11-11-28 latency


A:More Memory mean faster Gaming?

Nope will have no affect, unless you are hitting a memory wall. But I doubt tge memory you have now is your bottleneck.
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here are some of the stats....

488 megs
Slot "DIMM0" has 256 MB now
Slot "DIMM1" has 256 MB now

Bus clock 166 Megahertz

I have 340 Gigs free of hard drive

Any help on what I should buy to make it faster would be appeciated.

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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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Very interesting, can't wait till it hits the market.
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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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Go here and on the right,.. click Scan My System
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Intel and Micron held a joint press conference earlier today to announce a breakthrough memory technology called 3D Xpoint (pronounced 3D crosspoint) that's up to 1,000 times faster (read speeds) than today's NAND, features 1,000 times better endurance and is...

Read more

A:Intel and Micron announce 3D Xpoint, a new memory technology that's 1,000 times faster than NAND

I hope this really brings about the death of the hard drive. And it can't come soon enough.

Gimme a 1 TB Xpoint SSD that doesn't break the bank and I'm sold.
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if my board has DDR2, can i use the ddr2 dual channel?

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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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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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heres a link to the motherboard:

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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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OS - Win 7
Win7 x64 originally installed
Not OEM version
System 3 years old
OS system about eight months old
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Geforce 7950GT PCI
M2N32 Deluxe SLI
XION 450 Watt PSU

System is crashing faster and faster after startup. The BSOD started just last night (so this problem is very recent) while I was watching a movie. The second crash occurred about 10 minutes after reboot. The next crash took 5 minutes, and now maybe I have one or two minutes from reboot/start until crash.

I was unable to completely run the diagnostic program as suggested by this site. The only thing that I could retrieve was the minidump files. The files are attached. Any help in tracking down the problem is appreciated.

A:[SOLVED] BSOD - happening faster and faster

Mini dump files attached here.
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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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A:WEI Same for DDR2 800 and DDR2 667 - Confusion

Did you re-run the assessment?
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A:Mixing ram 1gb ddr2 667 and 2gb ddr2 800

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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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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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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.

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A:Faster processor = faster gaming?

depends on a lot of things, not just your cpu. Memory speed, graphics cards, etc...
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A:Linking a DDR2 memory graphics card with DDR3 SLI graphics card?

Now this card has DDR3 memoryClick to expand...

Which card?? "A card with DDR3 memory", or "A thingy with a red switch on it" tell us just as much.
But if it's not another 7600 GT you're trying to SLi, just forget it, especially if you're going to buy the other card.
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A:Faster and faster then dead!!

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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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A:ddr vs ddr2?

Hi. Here is something to read that will explain it better than I can.
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A:How much better is DDR2 over DDR ??

Anybody ??
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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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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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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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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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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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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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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'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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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.