I have a M5A97 motherboard that I flashed with the latest BIOS ROM (http://www.asus.com/Motherboards/AMD_AM3Plus/M5A97/#dow...). Everything went smoothly, and it asked me to restart the computer to finalize the update. After this, the screen went black. I let it simmer for about 10 minutes, and it stayed the same. I powered down the computer, then turned it back on, hoping it would solve the problem. The monitor no longer receives a signal from the computer. I've tried clearing the CMOS and removing the CMOS battery, then replacing it, to no avail. I really need help.
Can you try to reflash the BIOS with the motherboard CD? Otherwise you will most likely have to order a BIOS chip from ASUS, with the latest updates for your motherboard. Not a very hard task to change out the BIOS chip IF! you have the proper extraction tool.