According to the manufacturer: Support Socket 478 for Intel(R) Pentium(R) 4 1.5GHz~3.06GHz or faster Processor Support Intel(R) Hyper-Threading Technology CPU 400/533MHz system interface speed any socket 478 processor with a 400 or 533 bus speed should work.
Answers & Comments
According to the manufacturer:
Support Socket 478 for Intel(R) Pentium(R) 4 1.5GHz~3.06GHz or faster Processor
Support Intel(R) Hyper-Threading Technology CPU
400/533MHz system interface speed
any socket 478 processor with a 400 or 533 bus speed should work.