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Windows 7: Installed memory(RAM): 4GB (2.94GB Usable)

08 Apr 2009   #1

Installed memory(RAM): 4GB (2.94GB Usable)


I have currently 4gb or ram (Im pretty sure that my pc used to detect or make use of it all), however i probably have messed up something and it uses only 3 now! It is Windows 7 build 7068 x64 so technically it should make use of it all. Any suggestions?


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My System SpecsSystem Spec

08 Apr 2009   #2


it says to refresh the monitoring :P

besides, you maybe using your 1Gb on the internal video card for its memory
My System SpecsSystem Spec
08 Apr 2009   #3

Windows 7 x86 build 7077

^ yep, you either have an allocated amount of physical memory dedicated to something else or you don't have memory remapping enabled in your bios.
My System SpecsSystem Spec

08 Apr 2009   #4


Well yes, I do have GTX280 1GB gpu. But isn't x64 supposed to accommodate all of it ?
My System SpecsSystem Spec
08 Apr 2009   #5

Windows 7 Ultimate X64

i also have the same GPU, and RAM should show 4GB regardless, video ram is dedicated on it's own, and @ 1GB that's amazing, I
Refresh your WEI score, and you'll be ok.
My System SpecsSystem Spec
08 Apr 2009   #6

Windows 7 x64

Go to BIOS and enable "Memory Remap".
My System SpecsSystem Spec
12 May 2009   #7

Windows 7 RC 7100 64 bit

The "reserved for hardware" answer is the same one I got when running 32 bit Vista with 4GB a year ago. What is the advantage of using a 64 bit OS with 4Gb ram then? And why are there so many references to win32 when you generate a system health report in Windows 7 64 bit? It looks like this:

OS Checks
Operating System Info

root\cimv2:SELECT*FROM Win32_OperatingSystem
root\cimv2:SELECT*FROM Win32_ComputerSystem

--- or this further down the list ---

System Services

root\cimv2:SELECT __Relpath, Name, Caption, Description, DisplayName, PathName, Started, ExitCode, State, ServiceSpecificExitCode FROM Win32_Service

with every available/running windows service listed as a "Win32" service after it.

I upgraded to Windows 7 64 bit (which it reports as OS in other places) from Vista Home Premium 64 bit. Here are machine specs.

Gigabyte GA-P35-DS3L (latest bios)
Core 2 Duo E6600
4GB G-Skill RAM (2x2GB)
Intel Gigabit CT NIC
EVGA Nvidia 260 GTX 216 core Video

My System SpecsSystem Spec
23 May 2009   #8

Windows 7 Professional x64

If there is no option for memory remapping in your BIOS then you're pretty screwed - I'm in the same situation. 1Gb of my 4Gb RAM on Windows 7 x64 is 'hardware reserved' and the only way to get past this is having a BIOS that enables memory remapping. I'm taking the issue up with ASUS at the moment, hoping for updated firmware that support memory remapping, I suggest you do the same with your motherboard manufacturer.
My System SpecsSystem Spec
15 Jun 2009   #9

windows 7

enable bios REMAP MEMOR function may be can fix this issue.
My System SpecsSystem Spec
16 Jun 2009   #10

Windows 7 Professional 64Bit SP1

i have the same problem with my pc. Windows 7 64bit 4gb installed 3.87gb usable, could this problem be due to overclocking?
My System SpecsSystem Spec

 Installed memory(RAM): 4GB (2.94GB Usable)

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