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RAM Desktop Upgrade Confused Noob needs Big help and Advice

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February 19, 2014 6:23:05 AM

Hello, I am looking to upgrade my old Desktop PC with 4gb RAM. it currenlty has 2 512mb sticks.

1) I don't understand whats the difference between "high density"
2) Is it safe to buy RAM From Hong Kong?
3) Whats difference between PC25300 and PC26400 <<< Does it make a difference?

The more I try to understand RAM the more I get confused.
Im so confused and lost :(  on Exactly what will work on my PC . Can someone please tell me. What I need.!!

I have googled info,and taken CPU Images and RAM images and Motherboard manuals then after these images uploaded them, all in 1 single album. Please help me.

http://imgur.com/a/brWvE - <<< FUll images of my desktop Set up

According to that info ^^^

1 )Will this RAM work?
http://www.ebay.co.uk/itm/New-4GB-2X2GB-DDR2-667Mhz-PC2...

3) According to that info ^^ from the album does it matter if I use PC2 5300 OR PC2 6400?


If You have more questions or need more information please ask me.
Thank You very very much :)  :D 
February 19, 2014 7:00:28 AM

PC2 5300 and PC2 6400 are both DDR2 RAM Modules that run at different speeds (667 MHz vs 800 MHz)

Going based upon ASUS M2N-VM Motherboard, that mobo should support either speed with a maximum of 8GB (which probably means 2GB per slot).

1) The ram in the ebay link should work.
2) You can use either PC2 5300 PC2 6400 but don't mix and match.
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February 19, 2014 7:09:44 AM

kcops said:
PC2 5300 and PC2 6400 are both DDR2 RAM Modules that run at different speeds (667 MHz vs 800 MHz)

Going based upon ASUS M2N-VM Motherboard, that mobo should support either speed with a maximum of 8GB (which probably means 2GB per slot).

1) The ram in the ebay link should work.
2) You can use either PC2 5300 PC2 6400 but don't mix and match.


Okay Thank you very much for replying! I got the 6400 vs 5200 I understand that

Now only a few bits left. This bit is v important

If you click on the Ebay Link : it says : "Buyer note: it is high density, Only fit for AMD Motherboard. It can not support any intel motherboard."


What on EARTH does high density mean? Does my PC have that? how would I find that information about?

Thank You

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February 19, 2014 8:13:23 AM

I would just find some low density RAM just in case. Although I believe the RAM should work, there is always a possible that it won't and the manual for your motherboard doesn't explicitly say anything about high density vs low density so better to err on the side of caution. I think high density RAM modules are for server computers (but they still aren't ECC so maybe I'm wrong).

I also see that that RAM is 1.8V (volts) which might be an issue with your motherboard also. I would try to find some that is 1.5V.

I remember in my last computer I had 4 sticks of 1GB DDR2 800 (PC2 6400) and they were supposed to be run at 1.65V. My motherboard only officially supported 1.5V modules so I had to manually bump up the voltage to 1.65V (which may or may not be possible on your motherboard) but those were "high performance" modules.

So, just find some DDR2 667 or DDR2 800 modules that are "low density" and around 1.5V, at least that is my take, maybe someone could weigh in.
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