Double Data Rate (DDR) RAM is a type of DRAM (dynamic random-access memory) used in computers.
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2answers
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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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1answer
63 views
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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1answer
89 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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0answers
15 views
How does dual channel memory work? Is there any good metaphor for this?
I know there are a lot of questions pertaining to dual channel and the like, but I want a metaphor that in a way summarizes this technology. (Also does ddr technology basically work by sending data on ...
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2answers
94 views
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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2answers
86 views
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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2answers
97 views
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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2answers
61 views
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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1answer
112 views
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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1answer
64 views
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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1answer
91 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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1answer
165 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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2answers
923 views
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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3answers
495 views
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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1answer
633 views
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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4answers
138 views
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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3answers
839 views
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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2answers
305 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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1answer
551 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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1answer
799 views
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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1answer
174 views
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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3answers
10k views
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 ...
