So if all else fails, get 2 4GB modules to verify you can load 8GB in slots A1 and A2. But it seemed to say the MOBO takes memory modules from 512mb to 4GB per slot. By the way, I found a manual for the MOBO, but in Francais. If things look good in BIOS, fine, let's add memory. Does it have any other information about B1 and B2? What speed does it show for your memory, like 1333/ 1066/ 800? For your Q6600 CPU you need 1066 or faster DDR3 memory 800 won't work, and 1333 is OK but overkill. Does it say anything about B1 and B2 empty? It should. Different BIOS programs have different screens, but find the one that shows how much memory you have and in which slots. Power up your machine and enter Setup, by typing a function key right away after power on, usually F10, sometimes F2, your screen says what to type to enter Setup. It sounds like BIOS does not start, is that right? You never get to the Windows? OK, so let's look in BIOS. You know of course that you must have a 64 bit OS to access more than 4GB? Sure, you do, just checking.
