Double Data Rate (DDR) RAM is a type of DRAM (dynamic random-access memory) used in computers.

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Kingston RAM not seen in Studio XPS 16

I have a Dell Studio XPS 16 laptop, which supports 8 GB RAM. It currently has 2 x 2GB memory DDR3 SDRAM at 1067 MHz. I bought 2 Kingston Technology System Specific Memory 4GB DDR3 1600MHz modules. ...
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Can I change my DDR PC 400 to DDR PC 2700?

I just want to ask if I can change my DDR PC 400 to DDR PC 2700? I am having a hard time to find a DDR PC 400 here in our place. So Im thinking of replacing it to DDR PC 2700. Is it okay? Can I use ...
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Do Ram specs besides DDRx matter?

I'm looking to install some extra DDR1 RAM into a computer, but while looking online for some, I see all these extra specs, like "Assorted Models PC3200 400 MHz DDR1 Desktop RAM". Do any of those ...
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584 views

Determine maximum RAM speed

I want to buy new RAM for my laptop and wondering if my motherboard supports DDR3-1600. This is the output of dmidecode -t 17: # dmidecode 2.11 SMBIOS 2.6 present. Handle 0x002D, DMI type 17, 28 ...
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194 views

Will the Lenovo x230 work with DDR3-1866?

What is the max clock speed of the DDR3 that the x230 can run. I don't see it on Lenovo.com. Is it 1866mhz or 1600mhz? I see they don't sell 1866mhz as an upgrade, but I don't believe that means it ...
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470 views

Soldering DIMM slot in laptop

I have laptop Acer Aspire One 722. Specification says that it has 2 DIMM slots, but when I opened it, I found it has only one, and there is a place for second one. I'm just interested, could I add ...
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Different memory speed within the same model

I had 2x4GB DDR3 Kingston memory and recently decided to put twice as much. So i bought the same memory and put it in. Launched AIDA64 to just see what it shows, and saw something strange. Although on ...
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How to find the size of these RAM sticks? [closed]

Some time ago I cleaned up mess in my room and found 2 RAM chips. Can I find out somehow how much memory it contains without pluging it in the computer? p.s It seems, both of the chips are DDR. ...
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555 views

Combining multiple DIMMs in one memory channel

Every electronics engeneer knows that connecting more chips on the same line increases its capasistence and, thus, degrades the frequency. So, memory speed must be dependent on the number of chips in ...
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Is RAM accessed randomly between different RAM sticks?

Ok, I know that it is called Random Access Memory, but i wonder if there is any structure in how RAM is used. I have read that the RAM clock speed of different sticks will be limited to the slowest ...
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Dual channel vs DDR ram

I understand that DDR ram is basically sending the data on the falling and rising ends of the clock wave, but what is Dual Channel Memory. Google is just saying that it doubles the speed.
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Upgrading RAM in HP Compaq d530

I want to upgrade my hp compaq d530 from 1.2GB to 4GB of RAM. I look at the specs: http://h18000.www1.hp.com/products/quickspecs/11632_ca/11632_ca.html and saw that I could get up to 4GB of RAM that ...
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Can I mix DDR1 from different manufacturers? [duplicate]

Possible Duplicate: Can I mix different RAM modules in PC? I've got an old computer with four DDR1 slots. Can I insert two sticks from Corsair and two sticks from another manufacturer (with ...
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Why does this card say DDR1 and DDR2, when only DDR1 fits?

My motherboard says "DDR1 DDR2" next to the two RAM stick holders. The two holders are identical, and seem only to fit DDR1, though. Does it simply mean "DDR holder #1" and "DDR holder #2"? Because ...
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Are these memory modules suitable for my computer? [duplicate]

Possible Duplicate: How can I tell what RAM will fit my computer? I have a Pentium 4 computer, 2.40 Ghz, with two ddr memory modules. The former module is reported as DDR (PC2700) and the ...
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116 views

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: ...
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250 views

Want to install new DDR1 RAM. Will this work?

CPU-Z reads Currently Installed Memory as: DDR 512 MB PC3200 (200 MHZ) DRAM Frequency : 133.4 MHZ FSB : DRAM : 1:1 Mainboard supports upto 2 memory sticks each of 1 GB. I recently bought DDR1 512MB ...
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How can I determine the fastest RAM I can put in my laptop ?

I would like to add some RAM to my laptop but I have one small problem: I would like to know what is the fastest speed I can put inside it. I know from CPU-Z that I use DDR3 RAM: One piece of RAM ...
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dmidecode --type memory showing wrong DDR type?

A few weeks ago I decided to upgrade my laptop memory. In order to determine which type I need I used the following command on my Linux box (Ubuntu 10.04, not inside VM): sudo dmidecode --type memory ...
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PC can't detect second RAM installed

I have PC with 512 MB RAM installed (motherboard manufacture MICRO STAR, chipset P4M800), pc was running very slow so I decided to upgrade the ram. I installed CPU-Z and check the ram installed on the ...
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What RAM should be first?

Currently I have 1 RAM stick installed in my computer (the motherboard supports 4 sticks of DDR memory, see my specs here at my profile info) Kingston: 1 GB 200 MHz PC3200 I've bought another stick ...
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Is there any way to increase the amount of DIMM slots in a motherboard?

I have a computer with 2GB of RAM, and will eventually change the whole motherboard, but for now I only need more memory. The problem is that the motherboard is DDR2 and only has two DIMM slots, used ...
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383 views

Can a 2GB DDR2 stick become a 1GB stick?

I've just purchased a 2GB DDR2 RAM. My machine earlier had a 1GB DDR2 RAM stick. Now I put these two sticks together, and my machine, I think, showed only 2GR of RAM? Why is this so? Will using the ...
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842 views

Single DIMM for dual channel motherboard?

I mistakenly bought a set of three 4GB Corsair Vengeance DIMMs for my dual channel motherboard, so I have one DIMM left over. (When I had all three installed, at boot sometimes it would say 12GB and ...
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Can two same single RAM chips start to work in dual channel?

Do i need to buy a dual-channel memory kit in order to use Dual Channel? If I have a single 2GB chip and a mainboard which supports Dual Channel, can I expect to have dual channel enabled if I buy ...
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Is PC2700 SODIMM laptop memory backwards compatible with PC100?

Can laptop PC100-133 memory be replaced with PC2700-333 ? Both have 200-pin SODIMM.
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Can you tell DDR and DDR2 apart visually?

I'm getting a few old computers to take apart for parts soon. Most of them are definitely using DDR2 RAM, but there is the possibility that one or two of them are using DDR RAM. Since these are ...