10 GB RAM Installed.Only 3.9 GB Usable


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If you can try booting a Linux Live CD, x64 version, just to check if the OS can read the RAM correctly. Also 10GB doesn't sound like a correct RAM configuration; some older mainboards (their BIOS, in fact) won't even boot at all.

 

If the Linux Live CD can read and use the whole 10GB then it's a Windows problem; if it can't then can be either a BIOS limitation (a BIOS *might* resolve it, you have to read the release notes for it) or a channel problem.

 

I am sure that 10 GB of RAM is working fine.But I wanna know why it is not getting detected in Windows.?

Anyways I am gonna check for faults in  memory using MemTest.

I will be posting results here.

If it is working fine I am gonna update BIOS.

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I'm wondering if it's because it's 10 gig, try taking one of the 2 gig sticks out and see if it'll recognise 8 gig?

(I'm thinking it's either bad ram, or for some reason your windows won't recognise 10 gig of ram or it might only recognise in multiples of 4 gig increments...)

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