I was having some power management problems with my desktop- it kept crashing when in sleep mode. So I thought I would update the BIOS on my ASRock P67 Extreme4 (with B3 stepping). The only BIOS update that was available from ASRock website was the 3.1 Windows version. MY OS is Windows 7 64-bit. I followed the manufacturer's instructions to the letter and ran the update. According to the graphics in the update utility, the update was successful. But, when I restarted the machine, it failed to post.
That was 2 days ago. Since then, I have done a lot of reading on the interment, including this forum and tried everything I was able to try, but to no avail. I cleared CMOS, both with the "Clear CMOS" button on the back panel, and the onboard jumper. I disconnected the power cord, removed the Mobo battery, and let the machine rest overnight. Tried a different VGA monitor, albeit with a DVI-VGA converter since my GPU- which is a Sapphire Radeon HD 6950 2GB- does not have a dedicated VGA out. I removed all external connections, save the keyboard and mouse, both of which are USB. Removed all internal hard drives, except for the system drive. Tried booting up using only one memory stick. None of these measures has helped.
This is what happens: When I turn the computer on, power comes on, goes out for a couple of seconds and comes back on. The fans and LEDs come on. Disk activity light on the chassis burns a steady red for a few seconds and then turns green. Normally, the disk activity light would blink red indicating disk access. Nothing shows up on the monitor. On the Mobo, the error code indicator reads A9.
Reading this thread, and others, it seems I am not the first one to experience this problem, particularly those with a Radeon 6xxx series GPU. I don't have another GPU to try. I am contemplating buying a BIOS chip from Ebay. Short of that, can you guys think of something else I could try?
Would really appreciate your help. Thank you.
I was able to get some screen activity by using a legacy VGA card and monitor. The monitor showed a series of error codes and the system was booting up, then it flickered and went blank. I also tried booting the system w/o any HDD, with similar results...no message saying anything like "a bootable device wasn't found."
Edited by jhumur - 8/16/13 at 8:04am