Questions tagged [ddr2]

DDR2 SDRAM or DDR2 is an evolution of the old standard DDR SDRAM. The new technology came with the promise of increased performance, lower power consumption and heat, increase the density and minimize electromagnetic interference (noise). Modules are expected to 4GB of memory.

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confusion on clock speed of ram ddr2 6400, is it 400 MHZ or 800 MHZ ?,I found both answers on web

1-`DDR2-6400 is a designation used to indicate the peak bandwidth or data transfer rate of the memory module, not its clock speed. The "6400" in DDR2-6400 represents the theoretical maximum ...
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Compatible Memory Upgrade for Toshiba Satellite Pro

My old laptop is a Toshiba Satellite Pro L300 1Af with a maximum upgrade capability of 4 GB. Crucial's System Advisor couldn't recommend any compatible memory. There are two of these modules fitted at ...
Eugene Brennan's user avatar
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Will a DDR2 Memory Card Slot SATA to M.2 NGFF SSD B-Key Adapter Board work on a Gigabyte MA790X-UD4P with BIOS F10C

I built a computer using a Gigabyte MA790X-UD4P motherboard. I am using BIOS version F10C for the AMD Phenom II X6 1090T AM3 3.20 GHz CPU. The motherboard is designed for DDR2 Max 16GB Dual Channel ...
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Is this a proprietary DDR2 interface on this memory module from my Fujitsu laptop?

I would like to upgrade the memory in my Fujitsu laptop but it uses a memory form factor that I've never seen before. Is this a proprietary connector or is this size defined by some standard that I ...
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My computer motherboard support DDR2 RAM so may I choose any DDR2 RAM?

Installed RAM Information as follows: Memory Device Array Handle: 0x002A Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 1024 MB Form ...
Swapnil Nagtilak's user avatar
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Is 200 MHz DRAM Frequency (by speccy) the max frequency my ram is able to work at?

Is it possible that my settings are wrong? (single channel 6 Gb (as much as possible)) I've researched and found that everything as it should be. Am I wrong? Memory slots Total memory slots 4 ...
John Smith's user avatar
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will my total memory decrease if i use 2 2GB DDR2 RAM along with 2 2GB DDR3 RAM?

I have this weird mobo. Gigabyte G41M-Combo. It has 2 DDR2 RAM slots and 2 DDR3 RAM slots... I already am using 2 2GB DDR3 RAM. But what if I use those other 2 DDR2 slots to increase my total RAM?
Rafid Haque's user avatar
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RAM slower than CPU supported speed?

If i use 2*2GB 800MHZ DDR2 RAM, with 1333 supported bus of CPU and FSB, then CPU's performance will be downgraded? (and why?) I know this is pretty old system, anyway i need to use it.
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Maximum RAM capacity for the ASUS P5KPL-E

I'd like to revive an old PC. I'm wondering if the motherboard supports 4 GB of DDR2 RAM or a total of 8 GB of RAM. This is an online accessible version of the OEM's manual: https://drive.google.com/...
Dean Panayotov's user avatar
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Unable to install DDR2 RAM in old desktop

I am attempting to install more memory in a Dell Vostro 200 running 64-bit Windows 8.1. It currently has two 1GB DDR2 800MHz Corsair sticks. I have two more sticks of virtually identical RAM which ...
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Can I replace a DDR2 RAM module with a DDR3 module?

I am using desktop. here is the Configuration of motherboard. Manufacturer Simmtronics Model SM-IG31-MKII (CPU 1) Version V1.0 Chipset Vendor Intel Chipset Model P35/G33/G31 Chipset Revision ...
Imaginers house's user avatar
1 vote
2 answers
2k views

CPU DDR2 compatibility

I'm looking to upgrade the CPU on a laptop, and am having a hard time verifying the DDR type of CPUs. The laptop has a T5250. So, for upgrading, I'm looking at the X7900 and T9500, which are the two ...
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How to verify if my PC RAM is DDR2 or DDR3

I want to buy a memory expansion for my desktop computer, so I wanted to check if my motherboard supports DDR2 or DDR3. I did some tests for it, but got different results. I ran dmidecode and got ...
S Praveen Kumar's user avatar
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Discrepancies between Memtest86+ 2.11 and 5.01 test results

I am testing a few DDR-2 memory modules with Memtest86+. For one of the modules, Memtest86+ version 2.11 reports no problems while Memtest86+ version 5.01 reports four errors. I have tested the same ...
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Mobo won't recognize 800 MHZ RAM?

My mobo, a decade-old MSI P965 Neo, will accept at most 4 slots of 2GB DDR2 DIMMs at 800 MHZ. I recently purchased 2 x 2 GB DIMMs at 800 MHZ to replace the 400 MHZ DIMMs that were onboard. ...
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Will my new RAM will fit my motherboard?

I am about to purchase 2x4GB sticks of Komputerbay DDR2 non-ECC 240 pin RAM (http://amzn.to/1gXf65X) and I wanted to make sure that it would fit my ASRock N68C-GS4 FX Motherboard, as I have been ...
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New DDR2 RAM doesn't fit

Just bought 2 4GB sticks of DDR2 RAM, and they don't fit in my motherboard. The new sticks are Komputerbay 240 Pin 800MHz PC2-6400F DDR2 ECC Fully Buffered FB-DIMM Memory Modules (on the bottom in the ...
Will's user avatar
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Maximum Supported RAM in a Sony Vaio VPCW12J1E

I have this Sony Vaio 10.1 inch laptop which has 1 GB ddr2 RAM and runs on an Intel Atom N280 at 1.66 GHz. My question is what is the maximum amount of RAM this laptop supports? It has only one slot.
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HP Pavilion Media Center t3777.uk, motherboard P5LP-LE (Leonite), memory expansion

I'm pretty much a novice when it comes to upgrading computers (have replaced power supplies and graphics cards, but that's it). The computer above comes with 2Gb (2x1GB PC2-5300 MB/sec) occupying two ...
Dr Rick's user avatar
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1 answer
681 views

Can I combine 1x8 DDR2 256mb ram with 1x16? If not, which is better?

I recently obtained a Dell Dimension 5150 which appears to have had some RAM modifications too it. I found the following inside: 2x Samsung 256mb 1Rx16 PC2-4200U-444-12-C3 2x Samsung 256mb 1Rx8 PC2-...
Vincent Campbell's user avatar
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DDR2 RAM: Effective RAM dual channel frequency

Assuming the following DDR2 dual channel RAM setup on a Gigabyte P35-DS4 rev 1.0 board: Channel 0: Bank #0 : DDR2-800 Bank #1 : DDR2-800 Channel 1: Bank #0 : DDR2-1066 Bank #1 : DDR2-1066 Will the ...
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can I buy ddr3 ram for my laptop or I have to buy ddr2?

My laptop is Hp pavilion dv5 1041et http://h10025.www1.hp.com/ewfrf/wc/product?cc=us&lc=en&product=3793488 It has 4GB RAM (but my current windows is x86 so it does not matter). However I ...
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Optimal RAM configuration: one large DIMM vs multiple smaller DIMMS?

I have always been told there were performance advantages in using multiple smaller DIMMS vs a single larger DIMM (as the combined bandwidth of all the motherboard's RAM slots would be used). My boss ...
Austin ''Danger'' Powers's user avatar
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1 answer
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How to exceed manufacturer supported memory RAM

I have an intel pentium D 940 processor. I have tried ms config then check the maximum memory changed it to maximum, 6k+mb but when i click apply after restart it goes back again to 1025mb. I ...
DevLee's user avatar
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Will the SuperMicro X7DCA-L take Fully Buffered memory?

I have a lot of Fully Buffered DDR2 memory http://www.hynix.com/datasheet/spd/HYMP351F72AMP4N3_SPD.pdf My question is, would it work on SuperMicro X7DCA-L motherboard or do I have to purchase un-...
Link's user avatar
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Is it alright to use 2 different DDR2 RAM modules? [duplicate]

I have an old desktop PC which has a P4M900T-M2 motherboard. It currently has one Apacer DDR2-667 memory module but the motherboard can support two DDR2 memory modules. I'm planning to upgrade it to ...
Abel Melquiades Callejo's user avatar
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1 answer
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Compatibility of DDR2 RAM types

I want to upgrade my pc's memory and crucial.com tells me that the compatible types are: Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC) Maximum Memory: 8GB Does the speed ...
mulllhausen's user avatar
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DDR2-667 compatability in conjunction with DDR2-800

I have a DDR2-800 RAM in one of the slots of 2. Here it shows DDR-800 only as upgradable in the other slot. Would DDR2-667 work in the other slot? Or will it be incompatible?
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How do calculate which RAM option would be faster?

I've been reading DDR and related info on wikipedia but am still not sure I know anything. I have a Fujitsu Celsius w340 workstation with the following: Memory Speed: 533 MHz Memory Specification ...
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RAM memory : is memory speed (Mhz) limited by the fronside bus speed?

I would like to increase memory for my old dell inspiron 6000 and put it to the max, 2 x 1 Gb.From the specs review on cnet.com I see that I have : DDR2 SDRAM SODIMM 200 pin PC2-3200 / 400 Mhz On ...
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3 answers
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How do I determine which type of RAM my laptop uses?

I have a HP Compaq Presario CQ56-103ST laptop and I want to learn whether it uses DDR2 or DDR3 RAM. In its official web page, it is said that it has 3 GB DDR2 (1 x 1024 MB + 1 x 2048 MB). (Obviously ...
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DDR2 RAM Buffer

I'm trying to figure out what a buffer is in RAM, I'm currently learning about RAM and the different types. Could someone please explain to me the importance and purpose of a buffer in say DDR2 memory ...
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Can I upgrade an Asus M51Sn laptop to 2x4GB of RAM? (DDR2)

My Asus M51Sn has 2 RAM slots which currently have 1x1GB + 1x2GB DDR2-800 SODimm RAM modules installed. I've found out that 4GB DDR2 SODimm modules do exist, though they are impossible to find in ...
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What kind of RAM is compatible with my system? [closed]

I want to upgrade my RAM but am not sure if I should/can get DDR2 or DDR3. Sound like a stupid question, but CPU-Z is showing the following: At the top, it is saying that it’s DDR3 RAM, but I have ...
Scott's user avatar
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memory DIMMs work individually, but not in pairs

I have four new (to me) sticks of Kingston 1Gb 400Mhz DDR2. Three of them boot fine individually in slots 1 or 3, but not in slots 2 or 4. The fourth does not boot in any slot. The three working ones ...
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Maximum memory for Dell 540S using 64 bit OS

I went to the Corsair web site and keyed in "Dell Studion Slimline 540S", and it responded with maximum memory = 4slots x 2GB = 8GB DDR2. The OS I am using is 64 bit Vista Home Premium and 64 bit ...
Blessed Geek's user avatar
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1 answer
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Intel server board support 2 types of RAM sticks - is it possible?

While trying to figure out what to do with an old Intel server I have. On the Intel site spec page for the server board: SR1435VP2 it is mentioned that it can support both DDR and DDR2 400. I ask: ...
Saariko's user avatar
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New RAM sticks don't work with old ones

I bought and placed an additional 2GB of RAM in my notebook. I went to the setup screen, and appears there, I added the memory (2GB + 2GB = 4GB). When I continued to boot the notebook, the screen ...
richardaum's user avatar
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Difference in RAM speed (533MHz vs. 667) for an older iMac

I have an iMac (late 2006 Core 2 Duo model) that originally came with two 512MB DDR2 533MHz for a total of 1 Gig. About 2 years ago, I replaced one of them with a 2GB DDR2 800MHz. Now, I have recently ...
Avrom's user avatar
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9 votes
2 answers
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Memory timings in CPU-Z : Memory and SPD tab discrepancy - What do they mean?

When I run CPU-Z in my netbook, in the memory tab, the timings displayed are 5-5-5-15, but in the SPD tab, the timings are 5-5-5-18 (JEDEC #3). What do the differences in the timings between the tabs ...
galacticninja's user avatar
3 votes
1 answer
5k views

Switching RAM modules fixes boot hiccups. Why?

I have a rather old motherboard with 4 DDR2 slots, all occupied. I bought the board, RAM modules, and CPU from an acquaintance, second hand, so I do not know the exact history of the problem. The ...
ArjunShankar's user avatar
1 vote
1 answer
2k views

DDR2 woes on HP DC7800

My desktop (HP dc7800) has two 1GB DDR3 modules in it, and slot for 2 more. I tried to add (working) 2x1GB sticks of DDR2, 667, PC5300U. But got angry beeps and no boot. Any ideas? Current memory: ...
unknown's user avatar
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9 votes
4 answers
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What can I do with a bunch of old 1GB/512MB DDR2 RAM sticks? [closed]

I've been a parts-hoarder for too long, and buy stuff when I shouldn't. As a result, I have a whole bunch of relatively small denominations of RAM lying around. I've got like 10 or 12 SO-DIMM laptop ...
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How to select right ram module for MB Asrock Wolfdale 1333-D667

Detailed Here is my system specs. (For motherboard details, click here) I want to upgrade my systems memory. As you see on item specs page, this mainboard supports non-ECC, un-buffered memory. ...
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3 votes
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Can somebody explain this mystery of why these memory pinouts don't match?

I'm looking at a stick of DDR2 RAM side-by-side with another labeled PC2-5300F. The notch on the latter looks like DDR, not DDR2. The workstation it came out of says DDR2 in the specs. Wikipedia says ...
Greg's user avatar
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2 answers
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Will DDR2 667 & DDR2 533 work together in Intel D946GZIS?

My motherboard is Intel D946GZIS. It supports up to 4 GB RAM. I'm having a 1 GB DDR2 533 MHz RAM in it now. I want to add 2 GB RAM to it. But DDR2 533 MHz RAM is not available in nearby retail stores. ...
Suman S's user avatar
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4 votes
2 answers
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PC with 2 RAMs of different frequencies (1GB 533MHz + 2GB 667MHz) showing only 2GB RAM

I have 6 years old PC with 1.25GB (1GB + 256MB) of DDR2 533MHz RAM. As computer has become very slow and memory usage reaching its limits most of the times, i decided to upgrade RAM. But unfortunately,...
srinivas's user avatar
1 vote
1 answer
92 views

Memory upgrade scan tool not correct?

I have an older computer I've been fixing up to use as a small server and i'm in the process of upgrading the RAM. (It only has 1GB.) It's a Dell Dimension 9100. Uses PC2-5300 DDR2. It had windows ...
cody's user avatar
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Adding DDR2 1066MHz to DDR2 800MHz memory

My Current system has 2x1GB DDR2 800MHz memory, installed on Intel DG965WH board which supports up to 1066MHz. I would like to add some memory and my question is what would be the best configuration ...
Asaf Pinhassi's user avatar
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2 answers
981 views

Who to believe when seeking memory upgrades?

This question is similar to the following: But asking the broad question of who to believe when seeking memory upgrades? What will happen if I install more RAM than specified in manual? What happens ...
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