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ASUS P5KPL: 4GB installed, BIOS shows 3584 MB

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November 6, 2008 7:41:48 PM

I have an ASUS P5KPL motherboard (Intel G31 chipset), an Intel E2180 CPU, a Radeon HD 3650 graphics card and two 2GB sticks of Transcend DDR2 RAM. However, the BIOS detects only 3584 MB of RAM. In Windows Vista x64, the System Properties window shows that I have 4 GB of RAM, as does CPU-Z, but Task Manager sees only 3582 MB. Is there a way to make the missing 512 MB available?
Anonymous
a b } Memory
December 19, 2008 5:59:23 AM

Hi frind
asus p5kpl mb in not oc - then by graphic ram size rec of sys ram

exampel --- my graphic is 8600 1 gb ----- 1gb of ram recorded :hello: 
your graphic is 512 then 4096 = 3582 - for oc technology :ouch: 

exuseme for bad language by dear :bounce: 
a b } Memory
December 19, 2008 10:31:42 AM

macic7 said:
I have an ASUS P5KPL motherboard (Intel G31 chipset), an Intel E2180 CPU, a Radeon HD 3650 graphics card and two 2GB sticks of Transcend DDR2 RAM. However, the BIOS detects only 3584 MB of RAM. In Windows Vista x64, the System Properties window shows that I have 4 GB of RAM, as does CPU-Z, but Task Manager sees only 3582 MB. Is there a way to make the missing 512 MB available?

Nope, because the Intel G31/P31 chipset is hard-limited to 4GB (32-bit) total address space and does not support memory remapping over 4GB. Vista w/SP1 will correctly report total installed memory, but this does not mean all of it is being utilized. As you note, Vista is only utilizing the same ~3.5GB "ish" that Windows XP is utilizing. This is an actual chipset limit for G31/P31, 64-bit OS isn't going to change it.
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December 19, 2008 2:35:21 PM

As tcsenter points out, the chip is limited to a total of 4GB address space. And the PCI bus adapters need some address space, toherwise you won't be doing much I/O. The "missing" 512MB of RAM is due to the BIOS mapping the space needed by PCI bus.
December 19, 2008 5:42:37 PM

Quote:
Hi frind
asus p5kpl mb in not oc - then by graphic ram size rec of sys ram

exampel --- my graphic is 8600 1 gb ----- 1gb of ram recorded :hello: 
your graphic is 512 then 4096 = 3582 - for oc technology :ouch: 

exuseme for bad language by dear :bounce: 


sorry but we have no idea what you're talking about
October 14, 2009 6:07:13 PM

Go into your BIOS at boot by pressing Del, Go to Advanced then Chipset.
Select North Bridge Configuration and ENABLE Memory Remap Feature

This will give back your missing 512Mb totaling it out to 4 GB.

This has worked out for others with the same mobo, it will help u too.
Anonymous
a b } Memory
October 11, 2012 9:20:57 PM

tcsenter said:
Nope, because the Intel G31/P31 chipset is hard-limited to 4GB (32-bit) total address space and does not support memory remapping over 4GB. Vista w/SP1 will correctly report total installed memory, but this does not mean all of it is being utilized. As you note, Vista is only utilizing the same ~3.5GB "ish" that Windows XP is utilizing. This is an actual chipset limit for G31/P31, 64-bit OS isn't going to change it.




Jesus, man what are you taking about! :o  Looks like your brain is hard-limited :lol: 
G31/P31 has 36-bit memory address space (64GB) and 4GB _DRAM_ limit and DOES support memory remapping.
Next time download some docs, manuals, do some research before posting bullshits... :sol: 
!