computer keeps shutting off.

[all4spl]

I have an evga 780i with a 500gig hdd and an e6600 with 2gb of gskill ram with a fsp 500watt psu.
i tried it with my 260gtx and the computer turned on and lasted a little bit then shut off.. i took card out and tried a 7900gs and did the same thing.. now this psu only has a 4pin connector while my mobo has an 8 pin connector for the cpu. is this the problem?

 

[Dangman]

now this psu only has a 4pin connector while my mobo has an 8 pin connector for the cpu. is this the problem?

Nope, not really.

Ok, if you can, try that PSU with another system. In addition, try a different PSU with your system. Those two steps would rule out the PSU.

 

[all4spl]

i'll try thats when i get home from work.. i noticed somtimes it stays on longer than others.

 

[all4spl]

ok i actually borrowed a psu tester from work and it checks to be fine.. i was looking at the series of codes to see if it said anything and nothing bad... i cleared my cmos and then went into bios and same thing.

 

[all4spl]

ok so i managed to get into bios and look at the system monitor and it was reaching the cpu was reaching 93c... thats my problem right there. thanks for the help.. stupid stock cooler now im waiting for aftermarket one.