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Windows 7: Upgraded RAM but not usable?

04 Apr 2011   #1
kbronski

Windows 7 Pro x64
 
 
Upgraded RAM but not usable?

So, I had 3GB RAM installed and 2.93 GB was usable, so I upgraded to 4GB. Just installed the new stick no more than 5 minutes ago. However, my computer is now saying, "4.00GB RAM, 2.93GB usable"

Can someone explain what's going on?
I have a 32 bit OS.


My System SpecsSystem Spec
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04 Apr 2011   #2
yowanvista

Windows 10 Pro x64, Arch Linux
 
 

Note that 32-bit systems are limited to 3.25Gb Max but the actual usable memory is often less due to chipset limitations and built-in GPUs ,you need a 64-bit version of windows 7 to use all your RAM.

The 0.07GB was most probably hardware reserved

Uncheck Max mem from msconfig (Windows Key+R>msconfig>Boot>Advanced options)

Post a screen shot of the Memory Tab in Resource Monitor
You can view this in Resource Monitor. Start > type "resource" > Open Resource Monitor > Memory Tab > Physical Memory.
My System SpecsSystem Spec
04 Apr 2011   #3
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Your clue was that your PC could not use all of 3---let alone 4. If it had been able to use all of 3, then likely it would have been able to use some portion of the 4th gigabyte.
My System SpecsSystem Spec
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04 Apr 2011   #4
kbronski

Windows 7 Pro x64
 
 

Here is the memory tab. I'll try installing 64-bit (my processor handles 64 bit but was doing 32 bit instead)


Attached Thumbnails
Upgraded RAM but not usable?-4-4-2011-12-24-02-pm.jpg  
My System SpecsSystem Spec
04 Apr 2011   #5
yowanvista

Windows 10 Pro x64, Arch Linux
 
 

Quote   Quote: Originally Posted by kbronski View Post
Here is the memory tab. I'll try installing 64-bit (my processor handles 64 bit but was doing 32 bit instead)
1 GB is hardware reserved, you won't be able to use it unless you use 64-bit
My System SpecsSystem Spec
04 Apr 2011   #6
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

Win7 64bit will let you use all that RAM.
My System SpecsSystem Spec
04 Apr 2011   #7
kbronski

Windows 7 Pro x64
 
 

Is there a way I can tweak my 32-bit to allow the RAM usage, or would lead to severe instability?
My System SpecsSystem Spec
04 Apr 2011   #8
Dave76

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

Not possible, it's a pathway for communication to the CPU, only 4GB wide. RAM shares it with other devices, graphics, etc. leaving approx. 3.25GB or less for RAM.

Only way to overcome this limitation is to install a 64bit OS.
My System SpecsSystem Spec
04 Apr 2011   #9
yowanvista

Windows 10 Pro x64, Arch Linux
 
 

Quote   Quote: Originally Posted by kbronski View Post
Is there a way I can tweak my 32-bit to allow the RAM usage, or would lead to severe instability?
No there is no such tweak
My System SpecsSystem Spec
04 Apr 2011   #10
kbronski

Windows 7 Pro x64
 
 

Okay. Thanks for the tips and help guys! GREATLY appreciated! I'm backing up my data right now to install 64-bit.
My System SpecsSystem Spec
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 Upgraded RAM but not usable?




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