Dell has a huge problem with their Optiplex 620 power supplies. It's another capacitor issue. We have had nearly half of our 200 units fail in leass than 1 year. We are not alone, so this is no "fluke". Check out this thread on the Dell forums:

ttp://www.dellcommunity.com/supportforums/board/message?board.id=Desktops_Workstation_Optiplex%26message.id=7334%23M7334

Someone at Tom's, please report on this so Dell will own up to the problem and do something about it!

Their PSU 's been always like that . crappy !!