Intel CPU problem

[DeltaPhoenix]

I'm building myself a new computer, and until now, everything worked fine.
I turn it on, the boot screen is displayed and all...
But after 5-10 seconds it shuts down due to the CPU getting way too hot.
And it does that every time i try... I cooled it down and tried again, same result.
Everything is plugged correctly. Therefore i can't figure what's wrong...

Zotac Motherboard
Intel Celeron Socket 775 2.8 GHZ
Nvidia GeForce 7100
Kingston 1 GB DDR2 RAM


Can anyine help me?

 

[Tmagic650]

Have you installed the CPU heatsink and thermal paste properly? Try resetting the motherboard bios to failsafe defaults

 

[raybay]

I second Tmagic650... You can have too much as well as too little thermal paste, and too much can act as an insulatore. Or a processor may be is slightly lopsided in its socket causing the connection to not be good across the cpu. We have seen more CPU fan failures than almost anything else on a motherboard... so look over everything, slowly, carefully. Stress is an evil judge.
I would probably remove the entire CPU, clean and reapply the thermal paste as thinly as possible, then makre sure your CPU fan is turning at a high speed without wobbling... and that the fan doesn't quit after a dozen turns.
Double check all the motherboard install instructions to assure you understand them, and haven't missed something so obvious you overlooked it.