well .... i have just disabled CSM and continued to use windows normally w/o reinstallation. Might be it was disabled at the time i have done installation as i didnt look on it at that time ... 1/2 year ago....

CSM was the reason for misbehavior . .Thanks much for the hint. problem solved!...

I am still getting beeps like 3 short+1 long (now on f33c) on cold booting since f32. even its seems to run ok in windows as it boot w/o problems. I am using computer for work so its up 24x7. Few times (3 times altogether) i got constant sound from beeper until i put comp in to sleep mode or reboot....