I have had my AN8 for around 14 months usually 24/7 except for upgrades. Shut down one day and it would not boot. Post code 9.0. I have done everything including putting the board in a different case and everything that is possible to check if it is anything besides the board. I only use decent parts for my rigs and there is no fault with anything else. So it is the board. After googling the problem I find I am not the only one with the 9.0 problem. So I emailed Abit support did they reply no. Some support after laying out £112 for a board. So after my last four boards being Abit I have returned to Asus with an A8N-E. If anybody can shed some light on the problem I would be most grateful as it is a brilliant board (except for the sound).