My PC switched itself off the other day and I cannot get it to turn on.I presume the power unit has gone.Can anybody tell me where I can get a new power unit,does it have to be HP,and is there any problem changing it myself? Thank you. Peter.
PC World - from £29.99
Maplin - from £24.99
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It is fairly straight forward to change psu - open the side of the PC. Sketch / make notes of the connected cables. There are usually 4 screws holding the psu in place, remove these and carefully lift the old one out.
Pop the new one in, use your notes to ensure everything is reconnected and power up pc