RAM issue

I have updated to Windows 7 64, from XP, from a clean install. I have had an issue getting windows to use all 8 gigs of the PQI TURBO 2GB 240-Pin DDR2 SDRAM DDR2 667 (PC2 5400) ram that i have installed in my ASUS V3-M2A690G, that I built myself about 2 or 3 years ago now. My bios, and windows will see 8.0 gigs of ram installed, but the most I can get it get windows will allow "usable" is 3.25 gigs.
I have been trolling the internet, and here are the things I have tried:

1. I have run a memtest (extended version, three passes) no problems.
2. I have moved the ram into different slots to no avail.
3. I have tried to force windows to use all 8 by using the advanced boot options and checking the use maximum memory box and typing in 8192, and when I restart I get a BOSD, boot into safe mode, change the number back to 4095 and it works fine. Any number over 4095 will revert to a lower number. sometimes as low as 0
4. I have tried unchecking the maximum memory box, and get the same BSOD
5. I have unistalled all anti-virus/firewall software.

I have attached my list of .dmp files for today.

Thank you all,
Randy

System specs:
AMD Athlon 64 X2 6400+ Windsor 3.2GHz
SAMSUNG Black DVD/CD burner
PQI TURBO 2GB 240-Pin DDR2 SDRAM DDR2 667 (PC2 5400)
Seagate Barracuda 7200. ST3250410AS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive
ASUS V3-M2A690G
POWERCOLOR AX3850 1GBD2 Radeon HD 3850 1GB 256-bit GDDR2 PCI Express 2.0 x16

change it in your bios, advanced settings

Right click on Computer, select properties. Right below Installed memory is System type. Does it display 32-bit or 64?

Ram issue

"change it in your bios, advanced settings"
There is no option for memory remapping in my bios, if that is what you are talking about. I looked for that last night. I flashed this morning, I'll see if anything new poped up.

"Right click on Computer, select properties. Right below Installed memory is System type. Does it display 32-bit or 64?"

Yes it is 64 bit, it should love to use all 8 gigs of that ram, but sadly it won't.

randyrayrobb, welcome to the forums.

Just had a look at the manual for your barebone kit and it looks like there is a very good reason you can't use 8 GB of ram,


according to that it only supports up to 4 GB.

Start->run->msconfig->boot->advanced options

Uncheck everything in there.... hit OK, then restart.

zzz2496