Nelle FAQ della Asrock ho trovato:
Question: I am using the AMD® AM2 rev.G CPU. But the system always stops at POST after I turn on the system. I can't go into the operating system. What should I do?(12/19/2006)
Answer:For supporting AMD® AM2 rev.G CPU, please follow the steps to update the BIOS of your motherboard to the latest one.
1.Please press the "F2" key continuously right after turn on the system until it goes into the BIOS setup.
2.Please disable the "Cool'n'Quiet" function in BIOS setup.
3.Press "F10" key to save configuration changes and exit setup.
4.You can start to update the BIOS now.
How to update BIOS?
http://www.asrock.com/support/DOS.html
BIOS download page.
http://www.asrock.com/support/download.asp?c=All