Vista - DXDIAG memory indicator

Hi

I have just switched to Vista x64 from Vista x32. I have 4 gb DDR2 ram and my system information shows this.

When I run the DXDIAG and 3D mark vantage they are indicating I only have 2.6gb ram,,,,,,,, I am assuming it is these programmes that are showing the wrong information is this correct

Thanks

i have funny readings in dxdiag too. Show my gfx card ram as 2.5gb, even tho its only 512mb. As long as it says 4gb in taks manager performance section i wouldnt worry.

Thanks fieseler,,,

wasn't too worried just curious,,, more than anything,,,,

the BIOS tells me 1466 gb is being appropriated,,, but I haven't got a clue what is doing it,,, I have 2 x ATI HD2900 512mb graphics cards in crossfire,, would this have anything to do with it

if im not mistaken, the appropriated message means all 4gb of ram cant be adressed because other devices' ram is taking up the limit. Ie a 512mb gfx card will cause ur ram count to drop to 3.5gb. But this only happens with the 32 bit, & judging by ur dxdiag, u definatly have the 64 bit version installed.

what board do u have? Perhaps their is a setting in the bios u have to change.

Hi

I have an Asus P5W DH Deluxe board

did some investigating on that board. check ur bios for a "memory remap" feature. If its there, it should have 2 options "32Bit OS Disable" & "64Bit Os Enable" You need to choose "64Bit Os Enable". Hopefully ur bios will show as 4gb ram & no longer say being appropriated.

I have read comments that say your o/s will need to be reinstalled after changing this option because windows wont have the drivers loaded for that option.

fiesler

excellent advice,,,, found the appropriate section in the bios,, and changed it,,, I did not need to reboot my OS,,,,,

eveything now reads correctly, with my index score jumping from 5.3 to 5.7 and a nice jump in my 3D vantage score.... wish I could buy you a few beers

thank you for your help

no problem, glad i could help..