tried installing a Sapphire Radeon HD 5550 1Gb DDR2 PCI-e card. Having great difficulty getting this graphics card to work! prior to installing,upgraded CPU to AMD athlon 64 x2 5600+ brisbane, upgraded power supply to 650w, updated bios to latest version (f11j, then back down to f10) followed all instructions, deleted old video card drivers, no on board graphics. Once installed system powers up, but will not boot, will not even go to POST, no keyboard lights, no beep errors. This is the second card as i returned the first one believeing it was DOA after multiple attempts to make it work.
current card is a Nvidia GEforce6200 Turbocache PCI-E 512mb, it works fine in both the original config and with all the other new upgrades (power supply, bios, CPU etc)
Also, tried the HD5550 card in both PCI-E slots on the motherboard, still nothing.
Board S/n 6R639600198
RAM= PNY 2x 1gb DDR2, in dimm slots 1 and 2
can anyone recommend a better GPU to try? this is my sons gaming computer and the upgrades were a B-day present, so no joy in mudville so far!!
Any ideas gang??!!