Hi all. Turned on the UPS for the PC last nite and heard a brief "sizzle" sound. PC power switch was off. Now cannot turn on the PC. ON/OFF button is inoperable. Is it power supply? Any other possibilities? How can one check power supply with a mutimeter? Thanks. (sure glad i just cloned my HD to another computer? Bill Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://nospin.com/pc/pcbuild.html