PC turning in and off again and again in seconds after changing CPU fan

[azemazer]

Hi,
Today I replaced my old CPU fan by a new one. To do so I unplugged everything, unscrewed the motherboard, reapplied thermal paste, etc. Then I screwed back and plugged back everything. But now, it just starts then stops, then starts then stops... And neither my mouse or my screen turns on. Here is a video of the phenomenon:

Specs:
VS550 Corsair
R9 380 msi
CPU fan: purerock be quiet 150w
Motherboard g1 sniper h6
Intel CPU (I dont remember the exact model)

It s worth noting that being the clumsiest man in universe I accidentally let my cpu fall from a height of 30 cm twice and that I accidentaly stepped on it (not with all my weight but still...), also I removed the old thermal paste with water on tissues since I have no alcohol.
The PC was working fine befire I changed the fan.

Thanks in advance for your help.

Small update: I reinstalled the old fan... Still the same problem occurs.

 

[micropage7]

you remove the processor?

better you check the socket first, maybe bent or miss align or you just too tight when putting the heatsink

 

[DRDNA]

your motherboard should have an error code indicator, in either beeps or a series of diagnostic led's or a led read out of codes. See what error its throwing and look error up in your mobo manual.

 

[FreedomEclipse]

throw that power supply into a lake. Its made by corsair but their lowest end stuff is absolute crap.

 

[ThrashZone]

Hi,
Sounds like an expensive fan.

 

[azemazer]

Hi all, thanks for your replies. Unfortunately I've had my PC checked and apparently it was my motherboard socket. So here's that.
Again, thanks.

 

[ThrashZone]

Hi,
EBay good place for old stuff.
Might even see something on this sites market place.