had som eproblems overclocking my celeron 566 on my abit zm6 mb. Needed more voltage than 1.7V (couldnīt select more) and someone gave me the advice to flash the bios with the voltage set to maximum, it worked great!
unfortunately I played to much and lost the settings, and canīt repeat the "trick"
when I flash the bios and reboots I get an
"cmos checksum error, restoring defaults"
and the trick wonīt work because some default settings are installed.........