to fix up the bug of that system hangs at post code 3Dh if RAID card plugged

to support wide range of FAN tachometer for low speeds fans

to fix up P-III 550MHz CPU reports none of L1 cache size issue

to fix up SCO UNIX 5.05 with APM driver installing boots fail issue (HDD on, off, on, off)

to fix up the problem of that Win2000 always turn off CPU fans