Advice please - replacing PSU

[pstruck]

The PSU in my ageing HP Pavilion desktop is on the blink. This sort of stuff confuses the hell out of me, so I'm after a bit of advice regarding replacing it.

The standard PSU is a Bestec ATX-250-12Z Rev C1 ( HP Pt Nr 5187-1099). It has 4 pin and 20 pin mobo connectors and the HDD, CD and DVD drives are connected using molex 4 pin IDE connectors.

Trouble is, I just don't understand what I can/cannot use to reaplce this. I assume any ATX type with the same connectors will work, but does it need to be 250v still, or not? Any suggestions for a reliable, but not too expensive unit which will work?

[jimmyjimjim]

Sounds like a boggo standard 250W ATX psu to me; anything same size or larger should do the job.

http://www.scan.co.uk/Products/450W-Powercool-Modu...

Appears to have the 20 and 4 pin connectors.

Note, this was the result of about 3 seconds searching, so shop around!

[pstruck]

Thanks, just need the confidence to buy the correct item, as there are so many out there and I am not sure what is what.

[Who me ?]

The important thing is wattage . Then , are you going to be adding any extras ( Graphic cards etc) to the PC .If not ,then a similar item ,at or even more powerful ( wattage wise) would suffice . If you're going to add any extras ,then you need to get advice on the additional power requirements .