Vista - Ram upgrade help!!

Hi, I want to upgrade my RAM but i'm not quite sure if i should upgrade to 3GB or 4GB and which type of RAM should i use? as in the DIMM, all i know is i'm using DDR2 ram. U know sometimes they hv information like " KINGSTON SODIMM RAM PC6400 DDR2 800 2GB NOTEBOOK LAPTOP"

what's "PC6400" and "800" stands for?

about the 3GB and 4GB, i'm using vista 32bit, is it true max i can use is 3GB and if i upgrade tp 4GB what will happen? and will it benefit me in any ways?

a 32bit operating system can address 4gigs of ram.

use the "memory configurator" at crucial.com to find the memory you need.

thanks but there's no details that i needed came up from the crucial scanner, all i got from it is just my total memory installed from one of my slots and the manufacture details of my laptop..

I got this from crucial,see whether it helps.

Hello Sicknerd,
You have a 32bit system so it will only ever use 3Gig of ram and will only show 3Gig of ram being installed, i have to say, i dont think the gain you would get from upgrading your memory is woth the cost, unless you are using 2 or 3 high intensity apps at the same time i dont think you would see that much of an improvement, just my two bob's worth.

Hi Sicknerd,

The only advice I could give you is try getting a 64-bit OS. It will allow you to upgrade your RAM past 4GB. It will also process the 4GB and you will see a big speed increase! Hope this helps!

Regards,
alienware
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EDIT ignore this post i used the wrong system specs sorry ,, brb

you can upgrade to 4 gig by putting 2gb of pc 6400 in each slot , however your 32 bit os can only use 3.12gig of this (its a long story)

heres a link to the memory from crucial

http://www.crucial.com/uk/search/sea...resario%20CQ40

they have a US site too i dont know where your from , i wouldnt normally recommend crucial i find them a little exensive but i have no knowlage of laptop memory

pc6400 is the speed of your ram the 800 bit is that actual speed 800mhz

hey, thanks guys. it helps me alot.. but the thing is, if i upgrade to 64bit, will my Processor accept it? and will my graphic card accept it?

Hello sicknerd,

Just list your motherboard, processor, and graphics card models and I will be happy to inform you if they support Vista x64.

Regards,
alienware
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thanks, it's all list down in" my system spec"
but since u r very kind. let me describe it again.

System Manufacturer/Model Number Hewlett-Packard/Com Presario CQ40 Notebook PC
OS Vista Home Premium 32bit
CPU AMD Athlon X2 Dual-Core QL-64 ~ 2.1 GHz
Memory 2GB DDR2
Graphics Card 512MB ATI Mobility Radeon HD 3450