I recently aquired an Antec SmartPower 2.0 450W Power Supply. Although the power supply does work, it makes a very high pitched, low volume whine and the outer fan will not work.
I removed the supposed bad fan and when plugged in to the motherboard, it works fine, just not when it's in the power supply itself.
Looking closely at the board and caps, I did find a 2200uF 10v cap that was slightly domed, so I removed it and looking closely, it's broken open very slightly on the top as well. I have a new one coming.
The power supply does still work without it (very brief power on/of just to test) and the whine is still there, so it must be something else.
What would normally cause this whining? The power supply works fine either way, but I'd like to know just in case something is ready to go.
I removed the supposed bad fan and when plugged in to the motherboard, it works fine, just not when it's in the power supply itself.
Looking closely at the board and caps, I did find a 2200uF 10v cap that was slightly domed, so I removed it and looking closely, it's broken open very slightly on the top as well. I have a new one coming.
The power supply does still work without it (very brief power on/of just to test) and the whine is still there, so it must be something else.
What would normally cause this whining? The power supply works fine either way, but I'd like to know just in case something is ready to go.
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