pc keeps cutting out

[benny hill squad]

Hello, My spare pc keeps on making high pitch noises like fingernails down a blackboard and then just switches off, Anyone help? it's nearly five year old so it might be just getting old but i'd like to find out what's making theat noise!

 

[benny hill squad]

sounding like it could be loads of stuff now

 

[pinkhelmets]

I'd say first suspect is the power supply.
If its a really high pitch, as in some people with bad hearing wouldnt hear such a high frequency sound, then its power supply failure which is due to inefficient capacitance ~so it works but seemingly randomly fails as its struggling to produce constant correct voltages at the ampage required.

 

[benny hill squad]

i opened the power supply and it was caked in dust along with the fan, so i took it apart and cleaned it this morning, on some parts of the board it looked like it was welded on! had it running for 2 hours and no more noises and it's running ok. i had a spare fan dust filter i whacked on the fan plate. thanks for everyone's tips and advice

 

[muskrat]

i opened the power supply and it was caked in dust along with the fan, so i took it apart and cleaned it this morning, on some parts of the board it looked like it was welded on! had it running for 2 hours and no more noises and it's running ok. i had a spare fan dust filter i whacked on the fan plate. thanks for everyone's tips and advice

Nice one mate :Clap: