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Windows 7 64bit - 8GB of ram

By videor ·
Hello :)
8GB of ram installed in Windows 7 64 bit but only 6.94 are reported as usable...why is this?
Thank you in advance,
George

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RAM Type

by DonDefy In reply to Windows 7 64bit - 8GB of ...

It depends on the type of ram you?re using, what company, model and frequency is it?

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probably because Windows can't count properly - actually

by Deadly Ernest In reply to Windows 7 64bit - 8GB of ...

depending upon the system it's installed in you may have some taken out by the system to run the graphics if it's an on board graphics process with shared RAM, and anything else that's set aside before the OS gets started.

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Have you got on-board graphics? Or perhaps ...

by OldER Mycroft In reply to Windows 7 64bit - 8GB of ...

You've got a 3rd party graphics card that has access to supplementary system RAM to boost its performance.

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That will be it

by The 'G-Man.' In reply to Have you got on-board gra ...

was knows as the AGP Apature on older systems but on never systems it's just on board Graphics Memory.

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Graphics card NOT on board

by videor In reply to Have you got on-board gra ...

Graphics card NOT on board

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Same STORY

by The 'G-Man.' In reply to Graphics card NOT on boar ...

regardless.

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What every body means...

by DonDefy In reply to Windows 7 64bit - 8GB of ...

Is, we need more information to help ya :)

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More Information

by videor In reply to What every body means...

Ram brand: kingston at 800MHZ (4x2GB)
Graphics Card is not on board.
Motherboard Asus P5B

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The Asustek web site

by Deadly Ernest In reply to Windows 7 64bit - 8GB of ...

does mention a problem with 32 bit Windows systems will register less than 3 GB, so recommend a max of 3 GB RAM for a Win 32 bit OS. If the same problem applies to Win 64 bit systems then less than 3 GB plus 4 GB = less than 7 GB. I don't know if this is the cause, but seems logical.

I do know the short while I had 64 bit Win XP on my old Asus board it never registered the full 4 GB of RAM that I had in it - but that was years ago when MS first started with a 64 bit OS.

This would appear to be solely a Windows problem, you may wish to check the MS database on the issue.

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The key word is usable

by tmcgough In reply to Windows 7 64bit - 8GB of ...

If you are running something like systeminfo in a dos shell, you will see 2 different memories:
Total Physical Memory: 8,095 MB
Available Physical Memory: 6,503 MB
This is how much memory is LEFT to be used, remember you are running the os and a ton of stuff in the background, the Available memory is how much memory is NOT being used at the time. To prove this just run systeminfo a couple more times and you will see the Available memory get less and less. Or what I like to run is the cpu usage gadget at addgadget.com that shows you how much memory is left and how much is being used. Also as some have also pointed out, if you are using shared memory for the video card that will take some away as well.

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