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Windows 7: Memory - Set Maximum Amount Used by Windows

20 Sep 2011   #20


followed step 1-4, and 6-8 precisely, all seems to take ok, but after system reboot:
Task Manager shows Total 4094MB.
Control Panel/System shows:
Windows7Professional, ServicePack1
Installed memory: 8.00GB(4.00GB useable)
System type: 64-bit Operating system

any ideas why it doesnt work? Works ok on another 64bit system I have.
Resource Monitor/Memory shows:
Hardware Reserved: 4098MB
In Use: 1259MB
Modified: 108MB

Standby: 1521MB
Free: 1207MB
Available: 2727MB
Cached: 1629MB
Total: 4094MB
Installed: 8192MB

No Integrated Graphics.
Bios is Version AMI 1208, 07/30/10
Bios under Main/ System Memory states:
Usable Size: 4095MB
MB: Asus P7P55D-ELX
Intel i7
Cant find anything in Bios to change Memory Size??

My System SpecsSystem Spec
20 Sep 2011   #21

64-bit Windows 10 Pro

Hello Harald,

Double check the items in the red warning box at the top of the tutorial to see if any may apply to you in your BIOS settings.
My System SpecsSystem Spec
03 Oct 2011   #22


Solution: on MB: Asus P7P55D-ELX
Turned out to be a memory/Bios Setting issue:
8GB(4x2GB)installed, Bios and Win7_64 shows only 4GB, 4GB hardware reserved
Finally got it to work with 8GB:
What I did:
Power off
Clear CMOS: Short CLRT pins on MB, short pin2,3:, (Not just reload defaults in BIOS), and back to Normal: short Pin1,2
Press MemOK, a Asus MB feature that sets Memory timing parameters automatically
Power on
Delete, to get into BIOS:
Now BIOS/Main/System Info: Usable Size: 8191MB (and Win7_64 reports 8GB)
Note: unless Bios shows correct size, Windows wont see it.(even though CPU-Z will report it).
I had tried all else without luck. Key was to hardware clear CMOS on MB.
My System SpecsSystem Spec
03 Oct 2011   #23

64-bit Windows 10 Pro

That's great news Harald. I'm happy to hear that you got it sorted. Thank you for posting back with your results and solution. :)
My System SpecsSystem Spec

24 Jun 2012   #24

Windows 7 Premium 64 Bit
MSConfig will not save memory settings


I check the box and set the amount of ram to 4096 then make changes permanent and reboot and it shows 0 under max memory?

Is there a string that can be added to the environmental variables that will save this setting? I thought I saw it and the number of cores in there before?

Thank You
My System SpecsSystem Spec
24 Jun 2012   #25

64-bit Windows 10 Pro

Hello Rockit,

By default, that box should be left unchecked unless you wanted to limit how much RAM is being used for testing purposes only. When the box is left uncheck, Windows will use all available RAM by default.

Hope this helps, :)

My System SpecsSystem Spec
24 Jun 2012   #26

Windows 7 Premium 64 Bit

My System SpecsSystem Spec
24 Jun 2012   #27

64-bit Windows 10 Pro

You're most welcome Rockit. :)
My System SpecsSystem Spec
23 Jul 2013   #28

windows 7 Home Premium x64

Hi there, realize it's a while since someone asked anything here but hopefully I'll get some help! My problem is that I did set the maximum memory too low and now the computer wont boot properly, it powers on but then nothing. Is there a way to reset this to default settings by doing something with the hardware since I can't actually start the computer? I tried removing the battery for bios for 5 minutes and then putting it back but didn't work.

Really appreaciate any help I can get!
My System SpecsSystem Spec
23 Jul 2013   #29

64-bit Windows 10 Pro

Hello xendas, and welcome to Seven Forums.

What did you set it to?

You should be able to do a system restore at boot to select a restore point (if available) dated before this to undo it and hopefully help. :)
My System SpecsSystem Spec

 Memory - Set Maximum Amount Used by Windows

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