64-bit Win7 won't recognize all 5GB of my RAM, help?

Nightmare1235789

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Jan 12, 2013
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Hello,
I have Win 7 with 64-bit and the PC will only use 3.25GB out of 5GB, and I need all my RAM for I play games. I have cleared my whole BIOS/CMOS, I cannot find a memory remapping function; and I am at a point where reinstalling the OS is not an option. I have also done "MSCONFIG" and that failed too, my motherboard, an ECS 945GCT-NM, should support 8GB of DDR2.

So, can anyone help me?
 

Dalbi

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Jan 7, 2013
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Maybe you don't have activated the PAE (Physical adress extension).
I've faced this problem with Vista, solving it by typing in Start-Run "BCDEdit /set PAE forceenable".
Imho you should deepen this relatively to Win7.
 

Akashdeep

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Feb 9, 2011
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19,160


Wait.

Can you give us a live link of your Motherboard?

I tried to check your Motherboard spec with search, but wonder if its a discontinued product.

Please give us a live link of your Mobo, as I doubt about it's maximum memory support.
 

shahar080

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Jul 8, 2013
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OK SO although it's kind of late because i've just noticed this thread ( had the same problem)
1.go start and write 'msconfig' - press enter
2.system configuration will open
3.click on boot tab
4.click on advanced options
5.Tick 'Maximum memory''
6. write 5120 ( 1024*5)
7.Reboot and Have fun :)