I have set up Windows 7 Ultimate 64-bit on my PC. I have 8GB RAM and my BIOS states the correct amount (8192MB), but Windows (System Manager) says I have 8.00GB (3.22GB usable). give me a solution. im try ( Run > MSCONFIG, open the Boot tab > click Advanced Options > make sure that Maximum Memory) is not working..

[ My Motherboard Details: ]

CPU Type : DualCore Intel Pentium, 3000 MHz (15 x 200)

Motherboard Name : Foxconn G41MXE

Motherboard Chipset : Intel Eaglelake G41

System Memory : 3296 MB (DDR3-1333 DDR3 SDRAM)

DIMM1: Kingston : 4 GB DDR3-1333 DDR3

DIMM3: Kingston : 4 GB DDR3-1333 DDR3

BIOS Type : AMI (03/21/11)

[ My BIOS Details: ]

Vendor : American Megatrends Inc.

Version : 080015

Release Date : 03/21/2011

Size : 1024 KB

Boot Devices : Floppy Disk, Hard Disk, CD-ROM, ATAPI ZIP, LS-120

Capabilities : Flash BIOS, Shadow BIOS, Selectable Boot, EDD, BBS

Supported Standards : DMI, APM, ACPI, PnP

Expansion Capabilities : ISA, PCI, USB

Please Help Me!!

System Properties : enter image description here

Bios File : enter image description here

What about Bios Update?

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Can you add a screenshot of your system properties (Control Panel -> System) to your post? – Darth Android Dec 29 '11 at 20:09
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Perhaps instead of listing what your BIOS can support, how about a list of the ACTUAL hardware involved? :) – techie007 Dec 29 '11 at 20:29
are you using an original cd, some fake cd's parade as 64 but are really 32.. and allot of fakes look real..even activate..but months later de-activate.. but.. unless the motherboard has a memory hole, shows 8gb but reports less.. did you update bios? – ppumkin Dec 29 '11 at 20:30
It is also entirely possible that with 4 DIMM slots then the maximum each slot supports is 2GB, meaning that potentially only half of each of your sticks is being used... – Mokubai Dec 29 '11 at 20:46
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2 Answers

Enter the BIOS and go to Advanced Chipset Features -> North Bridge Configuration, then set Memory Remap Feature to [Enabled].

From the manual:

Memory Remap Feature

This item is used to enable/disable memory remap feature. Its mainly for if you have a 64bit OS and 4GB of RAM. Basically it allows you to remap the overlapped PCI memory above the total physical memory.

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Also ensure the BIOS is at the latest version, which currently is "964F1P10" dated 11/7/11 (link) – techie007 Dec 29 '11 at 20:32
Did you already try enabling Memory Remap Feature? If you did, download the latest BIOS update and apply it. – Dennis Dec 29 '11 at 21:25
Thanks Darth Android, techie007, ppumkin, Mokubai, Dennis... how to create bootable disc for bios update? – user111436 Dec 29 '11 at 21:28
There is a How to flash BIOS? link on the download page. It explains everything, including How to create Bootable Disk. – Dennis Dec 29 '11 at 21:38
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You may need to find and enable "memory remapping" in your motherboard's BIOS/CMOS settings. Also, did you completely disable the Maximum Memory setting?

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my "memory remapping" is enable.. – user111436 Dec 30 '11 at 9:28
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