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Windows 7: Windows 7 x64 4gb ram 3.25gb usable

04 Apr 2017   #1
Spyro

Windows 7 Home Premium x64
 
 
Windows 7 x64 4gb ram 3.25gb usable

Hello I have a Compaq Presario SR5310F with a ati redeon hd 4500 and have just done a clean install from Windows Vista Ultimate x64. Vista could use a 4gb of ram but windows 7 can only use 3.25 of it? I have looked under msconfig but maximum memory is turned off what is wrong?


My System SpecsSystem Spec
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04 Apr 2017   #2
Ranger4

Windows 7 Home Premium 64 bit sp1
 
 

Hi Spyro, welcome to the Forum.

Your question is a very frequently asked one & with 4gb of RAM installed Windows 7 will only show around 3.25gb as usable or available, as a portion of the RAM in used for hardware & resources, which is not shown as available because it is already in use.

So what you are reporting is normal for 4gb of RAM. If you wish to increase available RAM you need to install more RAM. If you decide to to that make sure you use matched RAM of the one type, for best results.
My System SpecsSystem Spec
04 Apr 2017   #3
Spyro

Windows 7 Home Premium x64
 
 
Thanks

Thank you so was windows vista using 3.25gb of ram too? Or is windows 7 using less than vista
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05 Apr 2017   #4
Ranger4

Windows 7 Home Premium 64 bit sp1
 
 

As Windows 7 is based on Vista but is much better, then it's probably the same, but Win 7 actually shows how much RAM is actually available for use. I suspect Vista showed the total installed & not what was actually available for use. Most likely just how the information is displayed.
My System SpecsSystem Spec
05 Apr 2017   #5
Spyro

Windows 7 Home Premium x64
 
 
Thank you

Thank you for explaining this to me!
My System SpecsSystem Spec
05 Apr 2017   #6
Ranger4

Windows 7 Home Premium 64 bit sp1
 
 

You are welcome & thanks for getting back.
My System SpecsSystem Spec
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 Windows 7 x64 4gb ram 3.25gb usable




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