PC turns on for fraction of a second, then turns off. System works fine when I remove graphics card

[kakashimoga]

My pc has been working fine for months, and then all of a sudden one day this started happening. Thinking it might be a problem with overheating, I replaced the thermal paste, but that didn't help. One possible issue is that my graphics card, an Asus gtx 650 ti boost 2gb, is recommended to be used with at least a 450w power supply, while I have been using a 330w. I have read that this can lead to voltage spikes, so now I am wondering if my card is fried. It seems unusual to me that it just stopped working out of nowhere. I have ordered a 750w psu and will try again when it arrives, but I'm skeptical of it working, and fear permanent damage is to blame. I don't have a warranty on the card, what are the chances that it has been fried? Is there anything I should try?

 

[The Builder]

Only way to find out is to test it when your new PSU gets there.

 

[dannyrg85]

Sounds like psu for sure! The builder has a good point you wont really know until you test it. If you do find yourself having a faulty card i would recommend the gtx 760 as an upgrade, i have it and the performance is fantastic Good luck!

 

[kakashimoga]

Only way to find out is to test it when your new PSU gets there.

Psu came in the mail today. I hooked everything up and it still did the same thing. I also took everything out of the case and ran it on a towel to eliminate the possibility of case shorting. I opened up the card and saw no evidence of blown capacitors...
Anything else to try?

 

[The Builder]

In that case, please list your system specifications for me.