KK266-R for Product No is 35102A, BIOS Date Code: Apr.26.2001  
1.Fixed system performance lost.
2.Fixed SoundBlaster LIVE! card are distorted
3.Fixed files copied from one IDE hard disk to another are corrupted.
4.Fixed files are corrupted when copying from to/from DVD, CDROM or CDRW device.
5.Correct CPUID=0643H ratio table.
6.Fixed data corruption with 686B.