Problem with my new PSU

B

Bikkembergs

New Member
Hello,

I've tried looking at guides, FAQs and previous threads but I cant seem to make sense of any of it.

I have a Packard Bell pc, bought in 2006. 3 days ago there was a very distinct burning smell. I quickly realised the PSU had given up after 4 years. It was FSP 250 Watt unit.

I've just bought another one yesterday, a Jean-Tech 300w unit. I figured 250 last 4 years so 300 should be more than efficient. I got it all up and running and after a days use it suddenly turned off :( Then I turned it back on, seemed ok and I put it on standby for half an hour, came back and it'd turned itself off. Sigh.

I'm really not too technical though and I've no idea if Ive even wired it up properly. All the guides claim its very easy and once the motherboard and fan are plugged in, its just like "ok, now plug the other devices in". The 4 pin peripheral wires are connected together (2 sets of wires with 2 plugs leading on the other 2 plugs). Apart from the motherboard, I only have the hard drive, cd drive and graphics card inside. So its either hard disk and graphics card together on one line of wire or hard drive and cd drive (cd drive and graphics card are too far apart to be together)

Also, the computer is so loud now, constantly sounds like its working hard and frequently rises in "effort". Sort of like a human gasping I guess.

Do you think I could've wired it up wrong? or bad compatibility or just a poor power supply unit?

Thanks.
 
it could have been a faulty unit, hopefully you could get a return and refund, but next time go for a better know brand, corsair, coolermaster, or if you want a decent budget psu

casecom or sumvision
 
I'd take a step back. One cooked PSU and a brand new one is playing up? The problem could be in the PC, a drive or fan or worse on the way out.

If you are not technically minded it makes things difficult.

You could do the "paper clip" test (Google it) to check the new PSU on no load (use digital multimeter). You could use the MB utility or something like Speedfan to graph the 3 PC voltages to see if any are unstable or out of spec. You should try this anyway as it's easy to set up.

To actually tell what current is being used by any component is quite difficult. Sense of smell?

Is the graphics card what came with the machine or added later?
 
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