Dead PSU?

[jenkoo]

Hi all,

I went away for a few days and turned the computer of normaly,then removed the socket from the wall..
Got back yesterday,pluged it in and its dead!! there is a flickering green light(at the back)under the power supply cable but no other sign of power anywhere...theres also a continuous clicking noise that seems to be coming from the power supply unit.

Today i had all but the 20 pin connector attached to the M/B,i shorted the green and grnd wires and there was power-the psu fan was running-the 2 drives working-the HD spun. (case fan and pcu fan not working)

i used a multimeter to test the psu with(green and black wire shorted)
and got these results.


red-4.98
orange-3.36
yellow-12.02
purple-5.02


does it look ok?


thx

[Oklahoma Wolf]

Looks good, except for where you left hardware components connected to a suspected defective PSU while jump starting it

What PSU is this?

[jenkoo]

Originally Posted by Oklahoma Wolf

Looks good, except for where you left hardware components connected to a suspected defective PSU while jump starting it

What PSU is this?

What do you mean?
I thought i need some sort of load on it...

If the psu is fine what would my next step be?

thx

[Oklahoma Wolf]

You had hard drives attached to a PSU that wouldn't power up without jump starting... if the PSU had been fried on the secondary, you would have lost those hard drives.

Just rereading your post - you say the PSU fan isn't working? That right there is grounds for replacing or RMAing it. The clicking could be the fan hitting something, or a symptom of the PSU having overheated from not having a working fan.

[jenkoo]

Originally Posted by Oklahoma Wolf

You had hard drives attached to a PSU that wouldn't power up without jump starting... if the PSU had been fried on the secondary, you would have lost those hard drives.

Just rereading your post - you say the PSU fan isn't working? That right there is grounds for replacing or RMAing it. The clicking could be the fan hitting something, or a symptom of the PSU having overheated from not having a working fan.

I thought i needed some sort of load to get a good read...

The CPU fan and case fan are NOT working.

The power supply fan is working.

[Oklahoma Wolf]

Originally Posted by jenkoo

I thought i needed some sort of load to get a good read...

Only once you can tell the unit is definitely working first.

Sounds like short protection was kicking in - the problem is outside the PSU.

[treshix]

If you have a spare mobo you wouldn't mind frying (i.e. the one in the closet you havn't used in three years) give it a try. You can short the mobo on without a power switch by using a penny or a flat headed screwdriver for the two pins on the mobo the power switch wires in to.