PC turns off on startup, just started happening.

[CoolConnor141]

*NOTE* I've checked threads saying its the PSU but I'm fairly certain it's not a PSU problem as the fan is active and everything is plugged in correctly and safely.

As it has been a while since I last de-dusted my PC, I took some time today to give it its cleaning of dust and other shite. I took all the precautions when cleaning (so no vacuums touching components, delicate handling of stuff e.t.c but I couldnt find my antistatic band so I made sure to be careful with that) and got it fully cleaned.

I re-plugged everything back in and loaded windows with no issues. I realized I'd installed the watercooler fan incorrectly (so it was sucking air in) so I took it apart, reinstalled, put it back together. But this time my PC kept turning itself off on startup? I tried a few things such as discharging the PSU, making sure everything was plugged in correctly e.t.c but it still kept shutting down?

I turned everything off, uplugged all sockets (including wall sockets and socket extension thing), plugged everything back in and now it seems ok? Probably jinxed it but oh well. ¯\_(ツ)_/¯

Any advice?

 

[Dark Lord of Tech]

Specs would help?

 

[CoolConnor141]

My bad SR, specs are -

Sabertooth 990x R2.0
AMD FX 8320 (OC'd to 4.2Ghz)
Radeon HD 7850
750w PSU (Cannot remember PSU brand, sorry)
8GB GDDR5 Kingston RAM
Corsair H60 Watercooler
NZXT Phantom Full Tower

 

[Dark Lord of Tech]

Can you locate the brand and model of PSU?

 

[CoolConnor141]

It is a CiT 750UB PSU

 

[Dark Lord of Tech]

That could very well be the issue not 100% on it but that PSU is very very poor quality. I wouldn't trust it to run any build.

 

[CoolConnor141]

Ah ok, I'll have a look around the market for a better quality PSU, maybe a Corsair or something. Thanks for the help.

 

[Dark Lord of Tech]

Corsair: CXM the black and silver models and RMx , EVGA: GS , G2 or G3 , Seasonic: XFX TS are a few to look into.