MSInfo32.exe only reporting 2048mb memory installed when 4gb physically fitted

JimboJet · 19 May 2011 at 12:59

Hi there, looking for some help from you people in the know.

I'm working on an older PC which has 4gb installed. The mobo is a DFI Infinity 975 X/G with the latest BIOS (12/10/2007)

MSInfo32.exe only reports 2048mb memory is installed but I have 4gb physically fitted in banks 1 + 3. Its currently set at 1.9v but I have tried it at 2.1v briefly as well to see if it solved the isssue.

The memory is new Corsair XMS2 2x2Gb PC6400.

The OS is Win XP Pro 32bit.

Any ideas on how I can get the 3.3Gb I'm expecting to get with this setup?

Thanks in advance.

JimboJet · 19 May 2011 at 17:12

1024mb

JimboJet · 20 May 2011 at 10:08

Memory remapping is enabled, win xp still reports only 2048mb installed. Yes I'm aware of the graphics card memory sharing thing but even so that means I'm a few hundred mb short of what I should have and more importantly Win XP should still report the 3.3 or 4gb (dont remember which ) is installed.

JimboJet · 20 May 2011 at 13:14

No Frenchtart you are quite correct and as your advanced maths clearly points out, it should be 2.3Gb reported and not 2gb which therefore leaves a problem that needs to be resolved. It points to only one bank of sticks being recognised by software.

My mobo supports up to 8Gb and shows correctly 4gb in the intial post memory check.

@ Plec, thanks, will try that (I'm not sure why i haven't yet!)

Am I correct in saying I could use say banks 3+4 to get the 4gb to work at single channel? How much of a performance yet will this give?

JimboJet · 20 May 2011 at 18:24

Ok no joy with banks 2+4. I'm up for some suggestions of what to try next. I'm sure its a simple setting ive overlooked, but whether that be in the bios or Windows I have no idea...!