imac g5 continuously restarting or just shutting off.

[jade m]

I should probably mention right away i am not very good with computers, so chances are i've done something wrong.

however, my computer wont stop restarting. its constant, sometimes it'll last five minutes, sometimes five hours. i've been looking into this and alot is mentioned about my "power supply". im not sure what that is or where to find it. Or even how to open my computer.

I thought about just erasing everything from my computer, and i deleted as much as i could (ok- i left my mp3's!). Still re-starting. Would erasing everything and re-installing panther do anything? im so lost and bummed out.

i've gone through all kinds of related threads on here and no one seems to have my exact problem.

update:
i opened up my computer.

these are the places that get very very hot:

also:

 

[Satcomer]

Something in the thermal dynamics has broken down. It looks like time to take it to a specialist.

 

[glenj]

I had the same problem about a year ago. Returned it to an Applestore and they replaced the power supply. It was still under warranty at that time.