PC shuts down with very loud fan noise [SOLVED]
In the past few days my pc has now shut down randomly when playing games.
The screen goes black but the pc stays on with an extremely loud fan noise coming from the back of the pc.
Thinking it was overheating I've installed another fan and moved the tower to a better ventilated area.
Unfortunately this didn't help as it has done it twice this morning playing diablo 3.
I installed Msi afterburner and the log shows CPU and GPU temps as normal with no spikes or anything so I'm thinking it may be the psu?
The psu came with the pc approximately 4 or 5 years ago when I bought it new.
I've noticed a general sluggishness in the pc despite a fresh windows installation recently.