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Question on DDR2 Memory

Q: Question on DDR2 Memory

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.

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Preferred Solution: Question on DDR2 Memory

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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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I have a MSI K9A2 CF V2.

It supports Up DDR2 1066 and up to 8GB.

I have 2 2GB sticks right now which I will be moving to another computer. I wish to buy 2 sets of 2 2GB 10666. The board support 4 sticks of ram. If I buy 2 separate of the same memory will I have an issue meaning 4 total sticks of the same ram. Meaning will the sticks do there little duel channel thing??


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I have a couple of DDR2-4200 modules that i would like to put in my dad's computer. The only problem is that his motherboard supports DDR2-3200 memory. i was just wondering if faster DDR2 memory is backwards compatible with the lower seed DDR2 stuff.

It seems logical to me that the motherboard would accept it and run my memory(DDR2-4200) at the lower DDR2-3200 speeds. Could someone verify this or correct me if i am wrong(wouldn't be the first time).

Thanks in advance

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my motherboard is an asus m2ne-sli motherboard. It says ddr2 up to 800mhz. Would it run DDR2 1000 memory at its full speed?
Or would i be able to overclock the ddr2 800 to 1000?

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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I'm back with most of my parts for my new build.

I have the memory, but I didn't get the dual memory, they sent me just one, one gig memory card. Does this have to be dual memory where the two cards come together or can I order another one just like it and it work the same.


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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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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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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 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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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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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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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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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...?


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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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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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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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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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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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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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: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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I thought that the only motherboard that supported DDR and DDR was the GA-EP C-DS R but when I was reading the overview for the GA-X -DS this is what I found quot Intel X Express Chipset The Intel X Express Chipsets support the latest multi-core processors with FSB MHz including the upcoming nm processors with DDR3 for the and DDR2 GA-X38-DS4? support memory its record breaking performance and greater energy efficiency Intel X chipset with optimized system DDR2 and DDR3 memory support for the GA-X38-DS4? memory capabilities chipset over-speed protection removed for maximum overclocking providing faster boot and application load times and additional power savings Intel X chipset also offer options for both DDR and DDR memory support U providing scalable options for users wanting to take advantage of higher memory performance with less power consumption to run next generation applications such as high-definition video and D visualization quot THe above was taken from the following website http www gigabyte com tw Products Motherboard Products Overview aspx ProductID So can anyone tell me from personal experience or their own exstensive and rock-solid knowledge if this board can take DDR as well as DDR nbsp

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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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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There weren't any problems with my Intel D97XBX2 detecting the memory, as I am running the latest bios for my board.

I'm actually liking Vista more, now that I have 8GB's of ram.
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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 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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We have a GeForce 8400 video card with 512 MB DDR2 ram. Our PC's ram is DDR type.
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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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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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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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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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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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Can I use my PC6400 on this board Asus M4A77TD Pro AMD 770 (Socket AM3) PCI-Express DDR3 Motherboard [90-MIB9S0-G0EAY00Z] Motherboards AMD AM3

A:Question on DDR2

Fluffy, it looks like that board only supports DDR3. Your DDR2 would not work.

It's not backward compatible.
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Hey gurus,

Here is a quick question:

I currently own 8GB's of - OCZ NVIDIA SLI-Ready Edition 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory. I am thinking about buying 4x2Gb of - OCZ Reaper HPC 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory - Desktop Memory. Is this a good move? Will I see much of a difference in performance from the 8Gb's that I currently own now?

Thanks guys

A:DDR2 Question

Hello Gudziel,

Sorry, but you will not see that much of an improvement from 800 Mhz to 1066 Mhz.

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My Mainboard officially supports up to 8GB of RAM(2GBx4)

Will a 4GB module(4GBx1) such as this ever work in that motherbaord although not officially supported
I've heard that some x48 chipsets could accept 16GB of DDR2 RAM(4GBx4)

A:DDR2 RAM question

Probably not, since the module is 4GB and the only ones listed as compatible go upto 2GB. That said, the QVL list only details the memory modules and sizes that have been tested with the board. It is by no means exhaustive, and other modules/sizes may or may not work.
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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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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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Or should i stick with planing to buy a new board and new memory all together, meaning a board that supports DDR3.

Im wondering if it would benefit me anything since im having alot of bsod issues now that have a higher stock chip and my ram is at the lowest mhz the board offers and my card always crashes playing left for dead 2.

I have not tryed other games yet but im figuring i need to get higher ram to support the cpu better can someone give me a good opinion my specs are already listed .

I am prepared to do either or but im thinking picking up 8 gigs of higher ram would be better like 1066mhz

A:Question about DDR2 vs DDR3

also i would like to know would ddr2 1200 be better or 1066 would be better as terms of stability
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A:quick xps 410 ddr2 question

Well, I have an asus motherboard and that says max of 512mb per slot when I put a 1gb in one of the slots it didn't even recognize it so I think it will be the same with the Dell as well.
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A:Question about balancing DDR2 RAM

you should be able to fill the three remaining memory slots with any compatible ram
they all should be the same memory ie: ddr2 3200
the size of them isn't important ie :256, 512, 1 Gig
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Is the performance boost of double RAM going to outweigh the loss in speed from 800mhz to 667mhz? Do you think it is worth adding the extra 2 gigs?

Many thanks.

A:DDR2 RAM 667mhz Vs 800mhz Question

You are correct that the memory will all run at the slowest speed of the bunch. You would barely notice a difference, outside of running benchmarks, with the slight drop in speed. If you can utilize the extra memory with the software you are running, then it is worth it.

However, there are two things to keep in mind. First, since you aren't running Windows 7 x64, you are likely only going to see about 3.25 GB in total. Second, anytime you mix and match memory, there is a chance they won't play nice together. The only way to know is to try them. As long as both sets are compatible with your board, you won't do any harm. If you start having random errors or lockups, then remove the slower sticks.
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A:Question about DDR2 1066 RAM Compatibility

There's no guarantee. Have you checked the manufacturer's website to see if they have a compatibility list of systems they've tested the memory in?
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Photoshop and Premiere used a lot.

Would 2gb be overkill ?

A:DDR2 PC3200 RAM upgrade question

You're more likely to see an improvement by increasing the total amount of RAM.
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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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But i heard that the max for DDR1 is 512 MB? Will i be able to use this card? or will it just cut the cards capabilitys basicly in 1/2? I am also useing Windows Xp, please if you can help me
Plz and ty

A:DDR1-DDR2 Video Card Question


There are no DDR graphics cards made anymore-not since about 2000-2001.
If your AGP slot is x4 or x8 you will be fine with the card if it's within your budget- the only compatibility problem you would run into is if your AGP slot is generation 1 ( i.e AGP 1x or AGP 2x) as these use 3.3volt signalling. Your computer would most likely have to be 1998 vintage for it to have that.
If you are in any doubt then post your system/motherboard maker and model/specification
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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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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 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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are they interchangeable?

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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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.

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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Since you did provide computer specs, I assume 1GB is allocated to onboard video memory.
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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: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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I am building my new computer soon and i am juggling between going with 4GB of DDR2-1066 ram or DDR2-800.

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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:Question regarding Dual Channel Memory- Mix or Match Memory

If you can get the same kit again it would be best but if you can get a kit with the same timings, speed, and voltage you should be okay. You should use cpu-z to find out your kit model and timings it supports. CPU-Z | Softwares | CPUID At the moment your two current sticks should in the white slots.
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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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Hello people

i used to work with 2G memory and while working with graphic programs
i have always reached to 98% usage of memory

so few days ago i installed 4g more (2X1G kit & 2X4G kit)

Now whats strange here is

1. when windows up it started with 20% which is 1.2G i dont remember that with 2G i started with 60%

2. when i use many program together and push my memory to the limit then when i close them my memory doent get back to the low percentage that it had before run the prgrams

3. what should i do with the pagefile do i need it now ?
Thanks a lot

A:memory question

1) I would put 1.2 gb at startup as normal. It really depends on the no. and kind of apps and processes running. Offhand, I remember startup usage on 2 of my machines- one is about 1.25 gb, another around 1 gb.

2) Win7 is no stranger to memory leaks (apps not freeing memory when closed or memory usage just climbing on prolonged system usage).

Microsoft details Windows 7 memory leaks, hangs, freezes

A specific hotfix is described in that article, but generally speaking, keep windows and drivers updated- that may help. Other than that, rebooting the computer is the alternative.

3) Keep the pagefile at the windows managed size, esp. if you have large, memory hogging apps like Photoshop, WMC etc. running simultaneously.
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A:IE Memory Question

How many windows do you have open?
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A:memory question ... 86x??

See? 8 but not 100% sure about this.
Use = depends on your system

Maximum amount of memory you can use in a 32-bit environment is 4GB but because several hardware parts have memory on them the amount of memory available to programs to work with is lower.
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A:Memory question

Is this for your Gateway, if so see here:

The board only supports up to 667Mhz for memory, if you install faster memory it will likely work but only at 667Mhz.

If you are not running a 64 bit version of Windows then you don't need more then 4GB, if you are then it may help to go higher but only for very certain circumstances.
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I can find Kingston at other locations but the price is much higher than the $33 at Newegg.

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A:Memory question....

Probably more than you wanted to know.
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P4 2.4 512MB Ram on a Intel 845PE Mobo

A:Memory question

It shouldn't be a problem. The faster memory will just run slower. As long as the memory supports your 133Mhz bus (533/4) it should work fine. If you already have PC2700, just get more of that.
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By the way, when i took the memory out, my system was in bios, and i unplugged the system just after i saw the smoke.

there was black stuff on the memory and there might be on the memory slot, the slot looks okay, some of the pins might be placed wrong, but i have another slot that i can use if need be.

I will try and post some pictures this afternoon although i dont think it will be of much help because i only have a 4.2megapixel camera.


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What does this mean:

3 x DDR DIMM Sockets
Max. 3 GB unbuffered PC2100 / PC1600 non-ECC SDRAM Memory (PC3200 Max. to 2 banks only / PC2700 Max to 4 banks only)

I know I can use 3 sticks of PC2100 memory, but what about the others? Here is the mobo: ASUS Mobo

A:Memory question

Importantly what that means to you is:
1. You have three "spots" to put memory sticks in.
2. You can put in those three spots up to a total of 3 GB of memory.
3. You should buy PC2100 SDRAM memory.
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I have two systems, one where the motherboard just went. I would like to take the RAM from this system and put it in another system. The system with the bad motherboard has 32M RAM and the other system has 64M RAM. The system with 64M does have another slot for memory.

I have never increased RAM and I'm not really sure where to start or how to know if it is compatible. I also don't know how to tell if this system recognizes the extra RAM.

Any suggestions would be great!

A:Memory Question

If it is the same length as what is in the other machine you can give it a try. If it does not boot up then chances are it is not compatible. The computer checks the ram at startup. You should be able to see the count as it does that on the forst screen. If the count goes over 96000 before it continues to boot then you know it recognized it or you can download the program Belarc from the link below and run it. It will tell you how much memory there is.
when you put the memory watch the notch and make sure it goes in lined up with the spot in the slot.
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Currently i have
Crucial Ballistix 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)
Cas Latency 4
Timing 4-4-4-12
Voltage 2.2V
Well currently with my motherboard (GA-M55SLI-S4) i did my best to make into that settings but I dont think I did it correctly. Right now on CPU-Z it says my frequency is 2001MHz but jumps to 320MHz time to time, my CAS Latency is 4, and my timing it at 5-5-18-24(im guessing thats what things below cas latency means) i have also set my voltage to +.3(max). I heard that my default voltage was 1.8V so with .3 it would be 2.1v. My question how do I change the timing and is there a way to make voltage 2.2v?

A:memory question

There should be. First of all read your manual as to bios settings and how to change them. Now see if there are any bios updates that address memory voltage and or overclocking settings. If so install the newer bios. Next it is common with memory to default to slower settings. The faster timing usually only work with higher vdimm ie ram voltage. Once you set the correct vdimm, you can then set the faster timings.

I would test for errors with either memtest or prime95 [set to test ram] Having faster ram timing does no good if the system is not stable.
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Hi there, I have an old Intel PII 434 MHz, 256 mb sdram pc100, 15 gig HDD. Anyway... my question, is that but a simple one to answer if your knowledged in memory chips...

I have 2 memory chips that are 128 mb each and are pc100, I have found in my possession 2 more, 128 mb but are pc133.

Question: Can I put pc 100's with pc133's without conflict? I know that this, my motherboard says that it will except the faster pc133 memory chips, but can I mix the 2, or will I have to put one or the other?


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What is the difference between pc100 and pc133 memory? And can they be mixed?
Also, is there any way to find out (without installing it) which type of memory and how many megabytes a stick is if it doesn't say on the outside?

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I have a Gigabyte GA-K8NS Ultra-939 mobo that takes DDR400.
My question is will it run with higher speed PC-4000 RAM and would this
be an advantage in overclocking or should I just stick with the PC-3200?

A:memory question

Yes and yes, just make sure to buy high quality RAM to avoid any compatibility problems. Check the motherboards list of recommended RAM and get RAM that closely matches that list only faster.
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I recently bought a 256MB upgrade, put it in the open slot, etc, and the system seems to run much faster, but the computer still says that I only have 127MB of memory. What's up with that?

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Hello all. I know this is an old thread, but it has practically all the info I need. The OP has the exact same Rig that I do, with only a few differences. I'll copy/paste what he has. Differences in RED

Manufacturer alienware
Model alienware
Version alienware
Chipset Vendor NVIDIA
Chipset Model nForce 680i SLI SPP
Chipset Revision A2
Southbridge Vendor NVIDIA
Southbridge Model nForce 680i SLI MCP
Southbridge Revision A2 MINE IS A3
Brand Phoenix Technologies, LTD
Version 6.00 PG
Date 07/03/2007 MINE IS 01/22/2008

What im trying to do is get more RAM. I currently have 4 x1GB sticks. My research has told me this Motherboard has a MAX 4GB support.

When I switch to Win7 x64 OS will this open up my Motherboard to except more RAM or am I stuck with 4GB and will need to replace MB?

I'm learning this all on the fly. Hope this makes sense and Thanx in advance.

A:memory question

Hello TrickIce, and welcome to Vista Forums.

In this case, you are limited by how much RAM your motherboard supports. If it only supports 4GB, then you'll have to replace the motherboard with one that supports more than 4GB.
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I would like to upgrade the memory in my com but am having problems finding out which cards would be best for my com? Heres the info on the com.

Computer Make: VIA Technologies, Inc.
Computer Model: VT82C691
Computer Version:
Motherboard Make:
Motherboard Model: 693-596-W977
Motherboard Version:
Processor: Intel Pentium II 350Mhz
Memory: 8 slots: 128 MB, empty, 64 MB, empty, empty, empty, empty, empty

It appears that I can upgrade it but where do I start? Thanks!

A:Memory Question

The easiest way is to go HERE and input your information.

Good luck.

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I wonder if you can add memory sticks that are not balanced. For example, one stick of 512, and one of 1gb. They are the same though, except different sizes.
I wonder if problems can occur because of that.

Also, would you guys help me find out how much total ram I can add to my system?
Because the guys from HP told me I can add to a total of 2 GB, and the guys from PQI told me 1GB. So I don't know which is it.

My specs are as following:
Motherboard Name: MSI MS-6577
Chip: North Bridge Intel Brookdale-G i845G

I have 2 slots. I was told I can add up to 1GB per slot. Recently I was told that I can only add up to 512 mb. So, I'm kind of confused.


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I'm planning on getting a core 2 duo 6400 which has a fsb speed of 1066. Will there be any issues with getting ddr2 800 memory to work with that?

A:CPU and memory question

no, im running ddr2 800 overclocked to 900, u wont have any issues as long as the mobo supports it natively