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Windows 7: 4gb ram but only 3.25 usable?

02 Dec 2009   #1
Ellwood00

Win 7 X64
 
 
4gb ram but only 3.25 usable?

ok so i stupidly decided to install hardware with my computer on and i sliped while putting a pci card in and hit su,tin that booted off my computer. now when i got it back on i have this message in my system properties "4.00 GB installed (3.25 GB usable)" anyone know hot to fix this. im using windows 7 ultimate X64. i think i may have either hit the GPU or a capacitor :/. any idea how to get this memory back


My System SpecsSystem Spec
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02 Dec 2009   #2
cortez

Win 7 Ultimate x64
 
 

don't know if your mishap caused any problems, but with my laptop, a portion of the memory is used for my LCD display. so, i have 4.0 GB Installed (3.75 GB usable). it would also help me (and others) if you include your hardware/software setup under "My System Specs".
My System SpecsSystem Spec
02 Dec 2009   #3
Uber Philf

W7 RTM Ultimate x64
 
 

Are you running onboard GFX or GFX by a card?
My System SpecsSystem Spec
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02 Dec 2009   #4
Qdos

 

Have you enabled the x64 operating system option in your BIOS?
My System SpecsSystem Spec
03 Dec 2009   #5
nate42nd

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by Ellwood00 View Post
ok so i stupidly decided to install hardware with my computer on and i sliped while putting a pci card in and hit su,tin that booted off my computer. now when i got it back on i have this message in my system properties "4.00 GB installed (3.25 GB usable)" anyone know hot to fix this. im using windows 7 ultimate X64. i think i may have either hit the GPU or a capacitor :/. any idea how to get this memory back
Installing that card is probably the reason for the memory being "missing" Your motherboard has mapped the memory for the PCI card. It will use the memory for that form now on. It's normal.
My System SpecsSystem Spec
03 Dec 2009   #6
Jonathan_King

Windows 7 Professional x64
 
 

What happens if you remove the PCI card?
My System SpecsSystem Spec
03 Dec 2009   #7
nate42nd

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by Jonathan_King View Post
What happens if you remove the PCI card?
I believe the BIOS will re-allocate the memory back to the OS for general use as I understand it. I have seen this happen but have never tried removing the card to see what happens.
My System SpecsSystem Spec
04 Dec 2009   #8
Ellwood00

Win 7 X64
 
 

ok so i fixed it. i decided to look in the msconfig to see what was goin on when i booted and apperently my max memory was set to 0. so i tried putting it to 4096 but it didnt work so i just unchecked the box and i have my memory back but i am missing one mb. so i now have 4095mb of ram. and the hardware is fine and i took the tv turner card out.
My System SpecsSystem Spec
04 Dec 2009   #9
nate42nd

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by Ellwood00 View Post
ok so i fixed it. i decided to look in the msconfig to see what was goin on when i booted and apperently my max memory was set to 0. so i tried putting it to 4096 but it didnt work so i just unchecked the box and i have my memory back but i am missing one mb. so i now have 4095mb of ram. and the hardware is fine and i took the tv turner card out.
I don't know if this is a very good idea, it may cause more problems. Good luck, I would change that back and let the board allocate the memory where it needs it.
My System SpecsSystem Spec
04 Dec 2009   #10
smarteyeball

 
 

Quote   Quote: Originally Posted by Ellwood00 View Post
so i now have 4095mb of ram. and the hardware is fine and i took the tv turner card out.
And that is why you have your memory back

1mb is always reserved for hardware in x64
My System SpecsSystem Spec
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 4gb ram but only 3.25 usable?




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