RIP CPU? No display

[vAKARISLT]

CPU temperature was high about 90 on desktop so I cleaned termopaste and drop some again, after that when I turn my pc theres no display on monitor. I can hear really long beep like idk for 1 minute after that I turn my pc off bcs I was scared that something gonna happen. But those beeps not always long. It was short one too.

 

Tried reseat old and new ram, tried with one stick. Tried another GPU, checked all cabels out and in pc. Tried to reset CMOS. I dont know what to do more. I think its CPU problem. Any more ideas?

[CommanderAlex]

Did you put the CPU back in the CPU socket in the correct orientation? You did not force it in did you? Or did you not even take it out at all?

[EPPHO]

CPU power cable? Insert it

[hconverse02]

If your computer posts, nothing is dead (most likely)

[vAKARISLT]

Everything is in the place, yes orientation is good. Dont worry about cables  Motherboard works, every fan works but no display. CPU Intel Duo Core E8400