How to make Windows 7 x64 use ALL your Memory!

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  1. Posts : 5,807
    Windows 7 Home Premium x64 - Mac OS X 10.6.4 x64
       #11

    I also wanted to add that it wouldn't let me specify my max ram and read as so in Windows...it always read the RAM as less than my max which supports the post about stating that this setting limits RAM and shouldn't be used unless you need to test a low memory scenario. My question is (and please provide a link to the MSDN article for it, I am sure there is one) exactly how is the number of processor setting used? for limiting or does it make the OS use both processors during boot and more during the OS?
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  2. Posts : 4,573
       #12

    Zidane2424 said:
    ...My question is (and please provide a link to the MSDN article for it, I am sure there is one) exactly how is the number of processor setting used?
    See this, but he is not completely correct. One reason is: On a computer that has a multicore processor, if the ratio of logical processors to physical sockets is not a power of 2, you cannot install SQL Server 2005.

    Also, regarding maximum memory shown...
    From MS Support: Note When the physical RAM that is installed on a computer equals the address space that is supported by the chipset, the total system memory that is available to the operating system is always less than the physical RAM that is installed. For example, consider a computer that has an Intel 975X chipset that supports 8 GB of address space. If you install 8 GB of RAM, the system memory that is available to the operating system will be reduced by the PCI configuration requirements. In this scenario, PCI configuration requirements reduce the memory that is available to the operating system by an amount that is between approximately 200 MB and approximately 1 GB. The reduction depends on the configuration.
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  3. Posts : 716
    XP Pro & Vista Home Premium (x86); Windows Ultimate 7600 x64 Retail
       #13

    Muad Dib said:
    I am more curious as to how your memory usage became restricted to begin with.
    Antman said:
    See this, but he is not completely correct. One reason is: On a computer that has a multicore processor, if the ratio of logical processors to physical sockets is not a power of 2, you cannot install SQL Server 2005.

    Also, regarding maximum memory shown...
    From MS Support: Note When the physical RAM that is installed on a computer equals the address space that is supported by the chipset, the total system memory that is available to the operating system is always less than the physical RAM that is installed. For example, consider a computer that has an Intel 975X chipset that supports 8 GB of address space. If you install 8 GB of RAM, the system memory that is available to the operating system will be reduced by the PCI configuration requirements. In this scenario, PCI configuration requirements reduce the memory that is available to the operating system by an amount that is between approximately 200 MB and approximately 1 GB. The reduction depends on the configuration.
    But the MSCONFIG Advanced options appear to be for limiting resources for testing purposes and, also, appear to be settings that are made manually. So my question remains, how was it set initially?
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  4. DJG
    Posts : 1,008
    Windows 7 RTM x64
       #14

    Muad Dib said:
    But the MSCONFIG Advanced options appear to be for limiting resources for testing purposes and, also, appear to be settings that are made manually. So my question remains, how was it set initially?
    Because he clicked on the check box???

    If you mean the original setting, then it would be unchecked, out of the box.
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  5. Posts : 4,573
       #15

    This link is placed here for a temporary purpose. It is somewhat related. Earlier today, I stumbled across a possible answer to Muad Dib's question and I am looking for it. I am not at my primary machine and have no link to it right now.
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  6. Posts : 716
    XP Pro & Vista Home Premium (x86); Windows Ultimate 7600 x64 Retail
       #16

    DJG said:
    Because he clicked on the check box???

    If you mean the original setting, then it would be unchecked, out of the box.
    Yeah, that is the point I am driving at. I don't think Windows would limit memory usage but if it does I want to know under what circumstances.
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  7. Posts : 5,807
    Windows 7 Home Premium x64 - Mac OS X 10.6.4 x64
       #17

    Antman said:
    See this, but he is not completely correct. One reason is: On a computer that has a multicore processor, if the ratio of logical processors to physical sockets is not a power of 2, you cannot install SQL Server 2005.

    Also, regarding maximum memory shown...
    From MS Support: Note When the physical RAM that is installed on a computer equals the address space that is supported by the chipset, the total system memory that is available to the operating system is always less than the physical RAM that is installed. For example, consider a computer that has an Intel 975X chipset that supports 8 GB of address space. If you install 8 GB of RAM, the system memory that is available to the operating system will be reduced by the PCI configuration requirements. In this scenario, PCI configuration requirements reduce the memory that is available to the operating system by an amount that is between approximately 200 MB and approximately 1 GB. The reduction depends on the configuration.
    Thanks for the info Antman...Windows has always read my memory at the 4GB...thank goodness for that
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  8. Posts : 181
    Windows 8.1 (Update 1) Both Machines
       #18

    Thanks for the info, it really helped.

    P.S.:

    You now, you could have used other Orbit Versions to remove watermark from Desktop..

    Lol, sry, it was just that I saw it while you were using it...

    (Yes, Orbit plus patch 1.0.4 is released!!!)
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  9. Posts : 95
    Dual Booting Windows Vista32 bit And Windows 7 Home premium (x64) (build 7600)
       #19

    aero2008 said:
    Okay,I figured it out, and I'll show you what to do if you're having problems.
    3) Another menu should pop up. From there, you want to uncheck the box that says "Maximum memory"
    After reading and reading everything on this subject, this FINALLY fix my being able to utilize the full 4 gigs of memory that I have instead of it using only 3 gigs. I had that box "Checked" and I only had 3 gigs available. After unchecking that box I now have My full 4 gigs showing. I must say there is an awful lot of good info in this forum as long as you have the time to read many of these posts.
    Thanks much folks.

    FyrmnJ in philly
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  10. Posts : 28,845
    Win 8 Release candidate 8400
       #20

    FyrmnJ

    See that search and you did find. Im always impressed by ppl who research their problem and figure it out. Nice going. Its an old trick. Max mem, max cpu, and legacy floppy support kill lots of installs.

    Ken
      My Computer


 
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