Jonas Magnusson :
hang-the-9 :
Do you have 32 or 64 bit windows? If 64, check both sticks of RAM one at a time. It's possible you have a bad stick or maybe even a bad slot.
Does the BIOS report 8 gig of RAM?
Yes it is 64-bit (as in picture above). I don't know what you mean with RAM sticks. I do know that my pc has two slots of RAM both on 4096MB(slot 0 and slot 1). I've used msconfig to uncheck the Maximum RAM on both OS'es.
I can't see pictures at work, so could not see the screenshot, but that RAM amount you see is exactly what you'd see if you have 32 bit Windows.
To test the RAM, run it with one stick at a time in the system in the first slot on the motherboard. If they are both OK, it's not likely a RAM issue. Another thing to try, if you have 4 slots, you often need to have RAM in the first and third slot for dual channel to work, you may as well try that instead of having them in 0 and 1, put them in 0 and 2 if both boot the systeme in slot 0 and you have more than two RAM slots on the motherboard. If that works, and both RAM sticks boot OK in slot 0, you may have a bad slot.
Did you contact the motherboard or RAM vendor support also?