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Win 7 32-bit Hardware Reserved Memory RRS feed

  • Question

  • I'm trying to determine why 1581MB of my 4GB of RAM is "Hardware Reserved," as indicated in the Resource Monitor.  I'm only on 32-bit Win 7, so I expected about 1 GB to be unusable, but not 1.5GB.  Any ideas?  Is there a utility or somewhere else I could look to see a breakdown of that 1.5GB of hardware reserved memory?  

    FYI, the System Control Panel reports the same thing.....4GB installed, 2.46GB usable.

    Thanks.

    Wednesday, August 4, 2010 5:34 PM

Answers

  • Which graphics cards do you have?

    http://support.microsoft.com/kb/929605

    To workaround this issue install the 64Bit Version or google/bing for a PAE Patch (http://www.geoffchappell.com/viewer.htm?doc=notes/windows/license/memory.htm). I'm running such a PAE enabled Windows 7 and it works fine and I can use my complete memory.


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    • Marked as answer by Magon Liu Friday, August 13, 2010 2:51 AM
    Wednesday, August 4, 2010 9:39 PM
  • Run this patch:

    http://wj32.wordpress.com/2010/05/04/pae-patch-updated-for-windows-7/


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    • Marked as answer by Magon Liu Friday, August 13, 2010 2:52 AM
    Friday, August 6, 2010 10:39 PM

All replies

  • You might be able to use VMMap,
     
     

    -- Mike Burr
    • Proposed as answer by Magon Liu Friday, August 6, 2010 12:11 PM
    Wednesday, August 4, 2010 7:04 PM
  • Which graphics cards do you have?

    http://support.microsoft.com/kb/929605

    To workaround this issue install the 64Bit Version or google/bing for a PAE Patch (http://www.geoffchappell.com/viewer.htm?doc=notes/windows/license/memory.htm). I'm running such a PAE enabled Windows 7 and it works fine and I can use my complete memory.


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    • Marked as answer by Magon Liu Friday, August 13, 2010 2:51 AM
    Wednesday, August 4, 2010 9:39 PM
  • I tried VMMap, but it only seemed to tell me how the 2.46GB of memory was being used, not the "hardware reserved" memory.

    Friday, August 6, 2010 6:05 PM
  • My graphics card is an ATI Mobility Radeon HD 3400 Series, with 256MB dedicated video memory.  This is on a Thinkpad T400.

    I can't really move to 64-bit Win 7 due to some work-related programs that may not work.  

    I read a lot of the PAE info that you referenced, but my understanding is that if I've enabled Data Execution Prevention (DEP), which I have, then PAE would already be enabled, and yet I still seem to have "lost" some usable memory.

     

    Friday, August 6, 2010 6:12 PM
  • Run this patch:

    http://wj32.wordpress.com/2010/05/04/pae-patch-updated-for-windows-7/


    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
    • Marked as answer by Magon Liu Friday, August 13, 2010 2:52 AM
    Friday, August 6, 2010 10:39 PM