Only 3.12 GB ram (of 4) usable on windows 7 64 bits

daas171

Honorable
Jan 28, 2013
8
0
10,510
Hello. I have this Motherboard which supposedly supports up to 4gb ram. I had a 2gb ddr2 800 stick (running at 667, because of a MoBo limitation) and a 1gb ddr2 667 stick, but I replaced the 1gb for another 2gb 667 stick which runs in dual channel with the other 2gb memory module.
The thing is, windows only recognizes 3.12 gb ram, as shown in this screenshot.
nQUjsn1.jpg


I included the system properties window, the resource monitor, cpu-z and the msconfig advanced settings, showing there's not limit there.

Is there any way to solve this? I googled and I couldn't find a viable solution, and the BIOS (already updated to the last version) doesn't have the "Memory Hole Remapping" option (unless it's renamed to something else.
I'll try rebooting to Kubuntu to see if it recognizes all the RAM.
 

daas171

Honorable
Jan 28, 2013
8
0
10,510

Oops, I forgot to mention that I have an ATI radeon hd 6670.

I also took some pictures to the BIOS in case I'm missing something:
zFi8NAq.jpg


546e75D.jpg


mhO2mvN.jpg


Thanks in advance.
 

daas171

Honorable
Jan 28, 2013
8
0
10,510
BIOS is already updated to the last version (1.50), and by selecting [Auto] in "Internal Graphics Mode Select" in the BIOS, the onboard is supposed to be disabled if there's a pci-e graphics card, according to the manual.

Any other ideas?