I have a 5 month old PC; Quad-Core 2.33; 4gigs RAM, on board Nvadia chipset, a terrabyte hardrive. I played Call of Duty this AM; then decided to do some updates; saw the Vista SP2 for 64bit avbiable; So I started the process .. Downloaded, installed, at the end pressed the restart button, PC Shut down and Neevr came back :| I waited then tried the reset button then the Power Button then unplugged it and so on .. Now I am pretty sure I got a bad power supply, but have no way to check is there anything else I could check or is that that ?? --------------------------------------------------------------- Please remember to trim your replies (including this sentence and everything below it) and adjust the subject line as necessary. To subscribe, unsubscribe or modify your email settings: //www.freelists.org/webpage/pctechtalk OR To subscribe to the mailing list, send an email to pctechtalk-request@xxxxxxxxxxxxx with "subscribe" in the Subject. To unsubscribe send email to pctechtalk-request@xxxxxxxxxxxxx with "unsubscribe" in the Subject. To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/ To contact only the PCTT Mod Squad, write to: pctechtalk-moderators@xxxxxxxxxxxxx To join our separate PCTableTalk off-topic group, send a blank email to: pctabletalk+subscribe@xxxxxxxxxxxxxxxx ---------------------------------------------------------------