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Windows Vista and accessible RAM

Svar Beckersted
Registered User
Join date: 14 Apr 2006
Posts: 783
11-04-2007 01:21
I just got a new computer (Dell XPS 720) with 4 GB of RAM but even thought it says I have 3 GB available I can't use over 2 GB. Does Vista really require 2 GB of RAM?
Thili Playfair
Registered User
Join date: 18 Aug 2004
Posts: 2,417
11-04-2007 02:43
Are you using 64bit os on that?, 32bit wont use more then 3~3.7 gig depending on your motherboard/pc setup, cause of memory limits on 32bit.

If you only see 2 of 4 gig ram when you boot / in os, you need to enable memory hole /remapping in bios to see more.

64bit windows is currently limited to
128gig> memory & 16tb of virtual memory ^.~

typical 32bit >



some more info here
http://www.codinghorror.com/blog/archives/000811.html
Ee Maculate
Owner of Fourmile Castle
Join date: 11 Jan 2007
Posts: 919
11-04-2007 03:38
I did the same thing (with a Dell!) for my work SL computer.... apparently it's a well known problem, and there is nothing you can do about it if you're running any form of Windoze

Try Linux?
Kyrah Abattoir
cruelty delight
Join date: 4 Jun 2004
Posts: 2,786
11-04-2007 05:33
windows 2003 support very large amount of ram :)
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Thili Playfair
Registered User
Join date: 18 Aug 2004
Posts: 2,417
11-04-2007 08:03
"apparently it's a well known problem, and there is nothing you can do about it if you're running any form of Windoze"

riiight , this is just typical 32 bit fault / bios setting ,nothing to do with os you run just cause its windows , long as it is a 32bit you wont ever go above the 3 gig limit in it.

if you only see 2 gig during boot
- its bios fault, set wrong and it wont show all the ram above 3 gig
- bios need a update
- some of your ram is dead <rarly

if you see 4 gig on boot, but only 2 in windows
- update windows
- check bios memory hole
- get a 64bit os ~.~ (duh)
Svar Beckersted
Registered User
Join date: 14 Apr 2006
Posts: 783
11-04-2007 10:51
Ok my computer doesn't show anything above over 3 GB but when I boot the computer the operating system already uses almost 1 GB. The Windows Task Manager says I have 3 GB available but when I hit the 2 GB mark the computer boggs down and will not go above it. I understand the OS and I have a 788 MG video card so the last 1 GB is saved for that but why can't I use the RAM from 2 GB to 3 GB? At 2 GB it says I'm using 67% of available RAM.