Hi, I m having an old comp .. i bought it in 2000.. It is a packard bell , 700 mhz.. 12 GB , 384 MB ram... I hardly use this since i got my acer ferrari laptop.. But.. Now adays i use this to test out all new softs.. etc... My computer has a problem now.. When i m working in it.. suddenly a hi/lo beep starts .. and the alarm goes on like forever,, and during tht .. my computer goes dead slow.. Affter few minutes or hours.. it stops.. sometime doesnt... when i check the taskmgr.. the process count goes bizzarre! My comp doesnt have a chance of having viirus .. since i formatted it yesteradayt.. I m goin thru this prob for arnd 2-3 months... I feel it is a motehrboard prob.. since it is quite old.. if i have to change it.. which motehrboard supports my comp and which is hte good one!