It starts, works and then restarts by itself.
I got this iMac (EMC 2133) that has been standing for 4 years in a box. Virtually new. I didn't remember any particular problems, but I decided to format it and update it to use it a little… surprise .. I format, I start the installation and it starts to reboot in a convulsive manner. I thought the pendrive was bad, and I used the original Mac OS X Leopard disks… it seemed to work, and then it restarted for no reason.
Now I decided to open it and in the end I said to myself, let's have a clean, CPU / GPU paste change doesn't hurt, and a quick check on the battery (it was at 2.90v) and capacitors ...
I'm sure I haven't solved anything, and I've started writing here.
The capacitors all seem ok, but I'm not 100% sure ... I ask for advice and help ...
In the end, I substituted the thermally conductive paste on:
CPU / GPU / Chipset / Power supply diode bridge (which was detached from its cooling fin).
I kept the battery unplugged for a few hours, and to be honest I put the same back. I keep it in test for a couple of days and see what it does, otherwise I change it.
Ist dies eine gute Frage?