A self-extracting file, AP53R3C0.EXE (AP53-3/AX53), included a flash utility for AMI BIOS use. 

Improvement:

1.Fixes destroyed INT14 codes which was due to the code's malfunction of BIOS LS/SCSI booting segments. 
2.Fixes 150MHz being indicated when Cyrix P166+ is used. Shows the correct CPU frequency as 133MHz.