Hi everyone, the problem is with this computer that i've built for my father, i'm baffled at why i can't this computer to post to the bios screen, i just get a black screen so i'm thinking the memory is the culprit, here are the specs: AMD 4800+ socket AM2 Abit AN52 socket AM2 Motherboard 2GB OCZ DDR2 800 memory 250GB Maxtor Sata/150 HD HEC Power 550W PSU. BFG 7800GT OC I've already tried 2 video cards that i had as extras for testing, a BFG 6600GT and this 7800GT and still no video, these cards work with no problems. The motherboard and Powersupply seem to be running stable as far as i can tell without powering on and off without acting erratic. Now this leaves me with the processor(highly doubt it's the processor) and memory, the motherboard has two blue dimm slots and 2 black dimm slots.. The manual stated to have both dimms on blue channels or the black channels.. I've tried both blue and black and i still get a black screen on startup?? WTF, could it be that this motherboard doesn't like this OCZ memory? Thanks in advance.