Lacking memory

Takaharu · Feb 1, 2010, 07:42 AM

A friend of mine recently decided to install Win7 Home Premium x64 on his PC and, although it registers that he has 4GB of memory it says next to it in brackets that there is only 3GB usable.
I can't recall the exact specs of the PC but I know that he has a Pentium D processor and two 2GB DDR2 sticks. I have double-checked that it is definitely the 64-bit version that was installed (which was the first thing I thought of) but I don't have any other ideas.

Has anyone come across this before or has an idea of what can be tried to rectify the issue?

EZero · Feb 1, 2010, 07:51 AM

If he is using integrated graphics it's possible that it has reserved that gig of memory as vram.

RoyBatty · Feb 1, 2010, 05:42 PM

He probably needs to enable the memory remap feature in BIOS. More information here.

Judas · Feb 2, 2010, 03:14 PM

some relatively cheap motherboards also have 64bit limitations implemented in them unfortunately.... while the chipset "supports" 64bit, it is still unable to address the entire memory. Sucks i know, only came across 2 boards like this.

Feb 1, 2010, 07:42 AM	#1
Takaharu I can fart in 7 languages Join Date: Aug 2009 Location: England, UK Posts: 1,862 Rep Power: 113 System Specs	Lacking memory A friend of mine recently decided to install Win7 Home Premium x64 on his PC and, although it registers that he has 4GB of memory it says next to it in brackets that there is only 3GB usable. I can't recall the exact specs of the PC but I know that he has a Pentium D processor and two 2GB DDR2 sticks. I have double-checked that it is definitely the 64-bit version that was installed (which was the first thing I thought of) but I don't have any other ideas. Has anyone come across this before or has an idea of what can be tried to rectify the issue? __________________ I don't get paid to know the answer, therefore I'm far more likely to give you a straight and honest answer. Mods Rig, Box Mods Rig, Folding details

Feb 1, 2010, 07:51 AM	#2
EZero HardwareHeaven Lover Join Date: Jun 2004 Location: Canada Posts: 119 Rep Power: 52 System Specs	Re: Lacking memory If he is using integrated graphics it's possible that it has reserved that gig of memory as vram.

Feb 1, 2010, 05:42 PM	#3
RoyBatty HardwareHeaven Senior Member Join Date: Jun 2006 Location: Czech Republic Posts: 1,941 Rep Power: 122 System Specs	Re: Lacking memory He probably needs to enable the memory remap feature in BIOS. More information here.