Question

My computer cant access 4GB of memory. how to fix?

Asked by: vipol

I'm using windows sp2.
Mainboard intel 965 GFEKR, CPU E2140 1.6Ghz bus800 cache 1Mb, Access 4Gb memory. When i Plugin 4Gb RAm but my computer only access 3.24Gb memory.

I know my CPU dont support 64bit. How to fix the problem? Windows Vista Ultimate 32bit can access 4Gb memory?

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Asked On
2007-11-11 at 02:34:15ID22952833
Tags

4gb

,

fix

,

memory

Topics

Plug Ins

,

Windows XP Operating System

,

Computer Memory (RAM)

Participating Experts
4
Points
125
Comments
6

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Answers

 

by: auyukselPosted on 2007-11-11 at 05:00:45ID: 20258806

Hi, windows xp sp2 can acces maximum 4 gb of adress space with /pae switch only.
You should add the "/pae" in your boot.ini file.

 

by: jamietonerPosted on 2007-11-11 at 05:13:18ID: 20258844

"I know my CPU dont support 64bit." Actually the E2140 does support 64-bit. Even with the pae switch it wont see the full 4Gb and it can hurt the os's performance as it takes away memory from the OS and gives it to the programs. The 32-bit versions of Vista have the same limitation's you'll need a 64-bit os to see all the ram.

 

by: MorDrakkaPosted on 2007-11-11 at 05:20:22ID: 20258867

To clarify:
This is caused by PCIx Memory remapping and can only be resolved by a 64 bit OS:

http://www.geek.com/windows-xp-maximum-memory/?rfp=dta

 

by: vipolPosted on 2007-11-11 at 06:08:08ID: 20259006

My Mainboard intel965 GFEKR 32 bit or 64bit? How can i check this information?

I download windows xp 64bit but cant install, warn me that install 32bit OS.

 

by: orangutangPosted on 2007-11-11 at 10:26:49ID: 20259969

Also, check out:
http://mywebpages.comcast.net/SupportCD/XPMyths.html (search for "4GB RAM Limit")

 

by: MorDrakkaPosted on 2007-11-12 at 00:12:24ID: 20262714

If your motherboard is the one in the link below, then it is 64bit compliant. Please assign accepted solution to this question since your main question has been answered.

http://www.avadirect.com/product_details_configurator.asp?PRID=1626

20120131-EE-VQP-002

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