Only seeing 2 out of 4 GiB of ram

  • Thread starter Thread starter Jason
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J

Jason

I've read all of the "I'm not seeing all of the 4GiB of ram" articles and
none of them seem to match my problem. I have 2 sticks of 2GiB ram (Mushkin)
installed in dual-channel. The bios on my mainboard (EVGA) recognizes all
4GiB of it, so that isn't the problem. I'm running SLI graphics cards with
512MiB each. When I look at system info, it says I only have 2GiB installed.

I just don't see how 4GiB turns into 2GiB even with the graphics card ram
subtracted out. I would expect to see around 3.3 to 3.5 GiB.

Thanks for looking,
Jason
 
I have seen as little as 2.5GB with only one graphics adaptor installed so
don't be too sure that that is all there is to it.
 
Are you using Vista x86 or x64? Only x64 can use 4GB+ of RAM as 32bit
operating systems cannot address 4GB so it will only display however much
ram the system is addressing even if you have 4 or more installed.

Trac
 
Jason said:
I've read all of the "I'm not seeing all of the 4GiB of ram" articles and
none of them seem to match my problem. I have 2 sticks of 2GiB ram (Mushkin)
installed in dual-channel. The bios on my mainboard (EVGA) recognizes all
4GiB of it, so that isn't the problem. I'm running SLI graphics cards with
512MiB each. When I look at system info, it says I only have 2GiB installed.
Click to expand...

On Asus boards, it's common for it drop all the way down to 2 GB when
memory remapping is enabled in BIOS - when using 32-bit Vista or XP. If
that is the problem, you might win a few megabytes by disabling it.
 
I have seen reports of Vista after its boot up memory check only recognizing
one stick of RAM when the two sticks were not a matched pair running at the
same speed.
 
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