Power supply test

[Thebadbandit]

Regarding a problem I have posted in another section but would like a direct answer here if possible.

Question : If I just plug a psu in the mains should the fan be working ?

[Nu Breed]

if comp is switched on = working
if comp is switched off/standby = not working

[tinners]

you can test it without a PC by shorting out a couple of wires
http://forums.vr-zone.com/showthread.php?t=130472

[Thebadbandit]

[quote=Thebadbandit;5764932]Regarding a problem I have posted in another section but would like a direct answer here if possible.

Question : If I just plug a psu in the mains should the fan be working ?

Can anyone just answer the above, IE I dont wont any other details.

[John7]

No

[essjay]

as above No

[wywywywy]

Some server PSUs will switch fan on (low speed) as soon as you plug into mains.

[tonyk79]

If you want no hassle and just want to see if your PSU is dead to rule out the mobo, then you can buy a PSU tester from maplin for £5. It plugs in and turns green if your PSU is working.

[mjn]

Originally Posted by Thebadbandit

Question : If I just plug a psu in the mains should the fan be working ?

Assuming there is nothing attached to any of the connectors, then no.

[essjay]

If you want to test your PSU without causing damage to your PC try the following

1. Disconnect the PSU from ALL components in the system.
2. Hook 1 or more cooling fans to the PSU to give it a load.
3. Get a small piece of wire, paper clip, or suitable object and short out pins 13 and 14 should be coloured balck and green and labled Blk Ground Green P.On (lo)