Hast du da kein DDR400 RAM?
DRAM Frequency auf 166MHz (DDR333) einstellen, wenn du da DDR333 Module hast:
http://www.asrock.com/manual/K7S41.pdf
CPU und RAM sollten da aber definitiv synchron laufen, für max. Performance.
Wirklich das neueste Bios drauf?
CMOS-Reset per Jumper gemacht?
CLRCMOS1 and CLRCMOS2 allow you to clear the data in CMOS. The data in CMOS
includes system setup information such as system password, date, time, and system
setup parameters. There are 2 ways for you to clear and reset the system parameters to
the default setup. Please turn off the computer and unplug the power cord, then you may
either short the solder points on CLRCMOS1 by using metal material, e.g., a paper clip for
3 seconds; or you may use a jumper cap to short the pin on CLRCMOS2 for 3 seconds.
Please remember to remove the paper clip or the jumper cap after clearing the CMOS.
Sollte da definitiv gemacht werden.