Power supply question

[Armadillo]

I think my psu has died, I tried switching my machine on today and it was lifeless. I tried the psu in another system and the same, won't power on, just completely lifeless .

Power supply dead right?, pretty sure it is, but guess I just want a second opinion before I get ready to rma it. Nothing I could have overlooked? No life from any machine it's hooked to= dead psu

Onto another question then

It was a corsair tx650w powering

phenom 2 955
4gb ram
5850
+ various optical drives and hdd

If I changed the 5850 for a 7800gtx, would a seasonic 430w be ok with powering that? or would it still be too much?

Thanks.

 

[RJC]

Assuming you looked st the fuse in the plug then it does sound faulty, especially as you tested in another machine.

Try linking pins 13 & 14 on the main atx connector with only a fan connected to a molex.

 

[MADEinSTOKE]

the seasonic should be able to power the5850

 

[Armadillo]

Assuming you looked st the fuse in the plug then it does sound faulty, especially as you tested in another machine.

Try linking pins 13 & 14 on the main atx connector with only a fan connected to a molex.

Fuse in the plug is fine. I used the same plug and lead on the seasonic and that was fine and powered the 2nd machine. Uplugged seasonic, plugged in corsair and then no life .

Haven't tried it with just a fan + link, as I've tested with another machine and same. Would have thought the fan+link would be just test it if you didn't have another machine available or is there another purpose to it?

Other machine is also a lot less powerful, only a single optical drive + hdd, a ti4200 and an athlon xp, so a lot less of a load on it and nothing .