I have an AMD system - It is currently running with 1 stick of 2GB ram. Lately, I added another identical 2GB stick to it. However, Windows 7 is not booting with 2 sticks of RAM. It will boot with either stick of ram, but not both together. Ubuntu loads fine (from CD). I have tried reinstalling windows, but it still doesnt load. It hangs at the 'starting windows' screen.
I am baffled what could be the problem, given these are identical sticks of ram! I have another pc as well, and haved swapped the RAM. The other pc works fine with these 2 x 2gb, but this computer still wont boot with the other' pcs 4gb ram as well.
Any ideas what might be the problem?
System description below:
Asrock M3A UCC AMD Athlon II X4 645 (3.1Ghz) 2x 2GB RAM (PQI, DDR 1333) 1 x 500 GB RAM
I've also tried resetting the BIOS defaults. The only change I've did was change SATA mode to AHCI. Bios was updated to latest version. I have also tried replacing RAM with another pair that are working on another computer fine, another working PSU.
Also, I've changed the motherboard with a brand new exact model like it was, as I was pretty sure it was the motherboard - But again, same problem persisted!
Update - I tried changing SATA mode back to IDE, as that is the only change I did in the bios, and strangely enough, it worked ! Windows Install screen loads, though I havent installed the OS yet but will do soon and post updates. RAID mode also works fine. Any clues why this might be linked with amount of RAM? totally baffling to me !
Update 2 In IDE mode, Windows Installation is asking me for further drivers, and no drives are being detected! This also happens in RAID mode, although I know raid should require additional drivers - IDE mode shouldn't.