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Normal for a PSU to buzz?
- Thread starter Culbrelai
- Start date
So when it is off but plugged in, no noise. But when it is unplugged, there is noise? That's....odd.
Coil whine from a PSU is possible, for sure. It doesn't seem to be as common as GPU coil whine we're more used to, but yes, it can happen.
Coil whine from a PSU is possible, for sure. It doesn't seem to be as common as GPU coil whine we're more used to, but yes, it can happen.
- Joined
- Dec 13, 2005
Just out of curiosity, what happens if you unplug the PSU from the internal components and plug it back into power?
Also which PSU is this?
And yeah, coil whine isn't too uncommon in other components. If I play an older game like HL2 with VSync off, frame rates are in the high hundreds and I get a high pitched whine from the GPU - wouldn't be surprised if that's what you're hearing.
Also which PSU is this?
And yeah, coil whine isn't too uncommon in other components. If I play an older game like HL2 with VSync off, frame rates are in the high hundreds and I get a high pitched whine from the GPU - wouldn't be surprised if that's what you're hearing.
- Joined
- May 30, 2004
Good chance of bad caps! Based on my experience with a 2005 Antec SmartPower 2.0 500W with Fuhjyyu caps. Then I inspected the caps and found the one that's most likely the +5VSB, bulging! Those Antec PSUs were manufactured by CWT.
IIRC, one day in 2011, when the house was very quiet, I heard a whine with the PC off, but plugged in. It wasn't my daily-driver rig, which had a 2008 FSP 500W.
IIRC, one day in 2011, when the house was very quiet, I heard a whine with the PC off, but plugged in. It wasn't my daily-driver rig, which had a 2008 FSP 500W.
OP
- Joined
- Oct 25, 2012
- Thread Starter
- #6
It's a Delta-branded PSU inside an IBM computer from 1992-94ish
- Joined
- May 13, 2003
It’s making noise when the system is off? Power supplies will send a minute amount of power when not “on”. Maybe low power draw is causing a sound? How many hours has the power supply been operating?
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