Hello,
I was asked to look at said psu. Owner says it is from a industrial pc, and when powered it trips the breaker where the computer is plugged.
From some similar symptoms in the forum, I believe it could be the pfc part. The diode seems ok, and the coil gives a low resistance. But how can I know if it is the right resistance, or is shorted ? It measures about 1 ohm, but that is already in the range my multimeter hasn´t precision. No ESR meter disponible for a while.
Can I use a PFC Coil from another psu , at least to test, without fear of damaging it more ? Problem is it has an extra connector, that seems to me to be used for the motherboard monitoring the PSU fam .. to use another psu in its place would need to find a way to fool the mainboard.
Pics tomorrow,
Thanks for your input.
I was asked to look at said psu. Owner says it is from a industrial pc, and when powered it trips the breaker where the computer is plugged.
From some similar symptoms in the forum, I believe it could be the pfc part. The diode seems ok, and the coil gives a low resistance. But how can I know if it is the right resistance, or is shorted ? It measures about 1 ohm, but that is already in the range my multimeter hasn´t precision. No ESR meter disponible for a while.
Can I use a PFC Coil from another psu , at least to test, without fear of damaging it more ? Problem is it has an extra connector, that seems to me to be used for the motherboard monitoring the PSU fam .. to use another psu in its place would need to find a way to fool the mainboard.
Pics tomorrow,
Thanks for your input.
Comment