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Windows 7: Windows 7 pro 64 bit only using 3.37 GB of 4GB of ram

16 Jan 2014   #1
nightlance2063

Windows 7 pro 64bit
 
 
Windows 7 pro 64 bit only using 3.37 GB of 4GB of ram

I just recently installed windows 7 pro 64 bit on my computer. under the computer properties it shows 4 GB of ram installed but 3.37 is usable. I have a asus p5gc-mx/1333 mother board and 2 2GB ram sticks. I really don't understand why it is only letting me use 3.37GB of ram


My System SpecsSystem Spec
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16 Jan 2014   #2
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

Most often times the remaining ram is being used for built in graphics processor. Do you have a Graphics card installed?
My System SpecsSystem Spec
16 Jan 2014   #3
nightlance2063

Windows 7 pro 64bit
 
 

I am running a GT240 that is not built in
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16 Jan 2014   #4
nightlance2063

Windows 7 pro 64bit
 
 

there is a built in one but it is not being used
My System SpecsSystem Spec
16 Jan 2014   #5
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

Well, windows and other programs must be using some of that RAM. I am no expert on this, but I've seen this issue come up multiple times. The OS is smart enough to divvy up the RAM according to need. If you would like to see more RAM, you may just need to buy more. This is a built-in feature, not an actual problem with the computer.
My System SpecsSystem Spec
16 Jan 2014   #6
logicearth

Windows 10 Pro (x64)
 
 

It has nothing to do with Windows. The missing portion of RAM is Hardware Reserved, in use by the hardware. Installing more RAM is not going to help. The motherboard in question has a stern memory limitation. In any case, you need to go though the BIOS and look for "Memory Remap" or something similar.
My System SpecsSystem Spec
16 Jan 2014   #7
nightlance2063

Windows 7 pro 64bit
 
 

Thank you i will go take a look at the bios again
My System SpecsSystem Spec
16 Jan 2014   #8
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

Yep, restricted RAM on that motherboard. Quote from ASUS:

'2 x DIMM, max. 4GB, DDR2 667/533 MHz, non-ECC, un-buffered memory
Dual channel memory architecture'

Goes on to say max for 32bit is <3GB

So installing more RAM wont help in this case to improve performance
My System SpecsSystem Spec
16 Jan 2014   #9
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Understand you have a discrete GPU - question is, is it really being used or is the BIOS still sitting on the on-board graphics.
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 Windows 7 pro 64 bit only using 3.37 GB of 4GB of ram




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