Artic Power 950w - Not 100%

[quattro alex]

Re: Artic Power 950w - Not 100%

I hope you do not think you can get 950W out of this supply, you would be lucky if it could do half of that continuously.

LDSisHere I think you have hit the nail on the head there, this was my initial thought when I picked the unit up - it didn't feel that heavy, and when I opened it up I saw the tiny 330uF Capxon primary.

When you attempt to turn on this supply, do you get any voltage out of the 3.3, 5 or 12 volt rails for even a fraction of a second? If you do then your problem is most likely on the secondary side due to a bad input to the supervisor IC. If not then then the primary side is not getting the signal to turn on or the primary side is damaged.

Thank you for this advice - I'll test it and report back

[domas]

Re: Artic Power 950w - Not 100%

if you don't even get anything for a fraction of a second, then check primary switchers, resistors and diodes around them

[LDSisHere]

Re: Artic Power 950w - Not 100%

I hope you do not think you can get 950W out of this supply, you would be lucky if it could do half of that continuously.

You will be hard pressed to find a schematic for this power supply or any ATX power supply, but you can repair these without one with some effort.

When you attempt to turn on this supply, do you get any voltage out of the 3.3, 5 or 12 volt rails for even a fraction of a second? If you do then your problem is most likely on the secondary side due to a bad input to the supervisor IC. If not then then the primary side is not getting the signal to turn on or the primary side is damaged.

[senz_90]

Re: Artic Power 950w - Not 100%

Problem: PSU does not allow pc to start

Testing: Fuse checked fine, primary startup cap fine, ~330v on the primary cap, psu tester does not register anything at all. Apart from the primary voltage I am getting 5.05v at the PS-ON (green lead) and the same at the 5VSB (dark blue lead). None of the other 3.3v or 12v rails have any voltage.

Question: I can't see anything that appears burnt, cracked or smells bad, the caps (teapo) which I know are poor are not bulged and test good on esr meter. Can you suggest where I can test next? ...also can anyone identify the manufacturer of this unit so I can check for a schematic.

since it has 5VSB and 5.05V PS_ON, you have much more chance to repair it. the culprits maybe on the secondary side of the psu. try to look carefully that has any burned or stinky smell..

[quattro alex]

Problem: PSU does not allow pc to start

Testing: Fuse checked fine, primary startup cap fine, ~330v on the primary cap, psu tester does not register anything at all. Apart from the primary voltage I am getting 5.05v at the PS-ON (green lead) and the same at the 5VSB (dark blue lead). None of the other 3.3v or 12v rails have any voltage.

Question: I can't see anything that appears burnt, cracked or smells bad, the caps (teapo) which I know are poor are not bulged and test good on esr meter. Can you suggest where I can test next? ...also can anyone identify the manufacturer of this unit so I can check for a schematic.