ticking computer power supply

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pjmcc

New Member

• Jul 23, 2009

• #1

hi guys i have a 1000w computer power supply that is ticking even when it is off so its not a fan issue. the ticking seems to be on intervals of 1 second

the power supply was turned on today for the first time in about 5months

does anyone know what would cause a power supply to tick?? and does it matter?

 

Last edited: Jul 23, 2009

RODALCO

Well-Known Member

• Jul 23, 2009

• #2

Sounds like a type of overload to me. or a faulty electrolytic shorting out.

Check for bulged capacitors on the board.

 

agis68

New Member

• Jul 24, 2009

• #3

It seems to be a non canonical discharging of the big capacitor check it with a ohmometr and replace it. Also check the 11W or 11W resistor ( the white one) if has some continuity problems and also replace it.
but the electrolytic capacitor is more sensitive and I think is the responsible one

 

P

pjmcc

New Member

• Jul 24, 2009

• #4

hey guys i found what has caused my power supply to tick. it seems that i plugged a 250v 75a into the power supply but all the other cords are 250v 100a

so i tested the 250v 75a cord on an old unused power supply, i checked before hand to see if the test power supply was ticking and it wasnt. after i plugged the 250v 75a into the test power supply sure enough it started ticking.

so i guess the lower amp has damaged somethign inside my power supply causing it to tick??

 

Hero999

Banned

• Jul 25, 2009

• #5

11W resistor?

I've never seen a 11W resistor, do you mean a 11Ω resistor?

Still how do you know it has a 11R resistor without looking at the schematic?

 

agis68

New Member

• Jul 25, 2009

• #6

This is my job I have the schematics from almost all besteselling ATX PSU

 

Hero999

Banned

• Jul 25, 2009

• #7

That's impressive given that the origional poster hasn't even given the model number or manufacturer.

 

agis68

New Member

• Jul 25, 2009

• #8

So? what's yours clue?

 

tariq7868

New Member

• Jul 25, 2009

• #9

probably supply is heating to much,,, when come to think of it,, whenever i turn off the engine of my car after a long drive there comes a ticking sound from somewhere around the engine ...