New computer starts then does nothing

brian514

Honorable
Apr 17, 2012
3
0
10,510
I have a brand new custom amd phenom ii x4 840 with 8gb mem and win7 home 64 bit...ok comp was running great then it just shut off...for about 2 hrs wouldn't turn back on...then i disconnected all cords and reconnected them...now comp turns , fans work...but no boot or anything else...also have to turn comp off with button in rear as on/off switch won't do it....any suggestions ??? thank you
 

brian514

Honorable
Apr 17, 2012
3
0
10,510
I 've had the pc since 1/27/12....runs awesome...has been running continuous for past 3 days while i did a project...then just shut off last night for no reason...wouldn't power back on for about 2 hrs later...then it just powers on and does nothing..no boot...mouse ...key board etc...i have a psu in another older ( like real old ) pc
 
It could definitely be a PSU problem and swapping PSUs to TS is always a good idea in boot-no-video situations. Unfortunately, there are other issues that could be causing the OPs symptoms, therefore I provided a link to a detailed thread that has covered this territory.