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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.
 

sneak_stealth

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Dec 13, 2012
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Try removing the 4GB stick and putting the 1GB in it's place, see if it tries to POST. If it doesn't POST your 1GB stick COULD be bad. same goes for the 4GB stick.
 

Akashdeep

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Feb 9, 2011
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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 :)

 

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