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Windows 7: How to make Windows 7 x64 use ALL your Memory!


08 Jul 2009   #11

Windows 7 Home Premium x64 - Mac OS X 10.6.4 x64
 
 

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?


My System SpecsSystem Spec
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08 Jul 2009   #12

 

Quote   Quote: Originally Posted by Zidane2424 View Post
...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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08 Jul 2009   #13

XP Pro & Vista Home Premium (x86); Windows Ultimate 7600 x64 Retail
 
 

Quote   Quote: Originally Posted by Muad Dib View Post
I am more curious as to how your memory usage became restricted to begin with.
Quote   Quote: Originally Posted by Antman View Post
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?
My System SpecsSystem Spec
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08 Jul 2009   #14
DJG

 

Quote   Quote: Originally Posted by Muad Dib View Post
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.
My System SpecsSystem Spec
08 Jul 2009   #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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08 Jul 2009   #16

XP Pro & Vista Home Premium (x86); Windows Ultimate 7600 x64 Retail
 
 

Quote   Quote: Originally Posted by DJG View Post
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.
My System SpecsSystem Spec
08 Jul 2009   #17

Windows 7 Home Premium x64 - Mac OS X 10.6.4 x64
 
 

Quote   Quote: Originally Posted by Antman View Post
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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11 Jul 2009   #18

Windows 8.1 (Update 1) Both Machines
 
 

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!!!)
My System SpecsSystem Spec
23 Aug 2009   #19

Dual Booting Windows Vista32 bit And Windows 7 Home premium (x64) (build 7600)
 
 

Quote   Quote: Originally Posted by aero2008 View Post
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
My System SpecsSystem Spec
23 Aug 2009   #20

Win 8 Release candidate 8400
 
 

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
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 How to make Windows 7 x64 use ALL your Memory!




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