So here is how things went. I had a Coolermaster Silent Pro M700 PSU (http://www.coolermaster.com/service/support/model/RS-700-AMBA-D3/) and a 1200Watt UPS (http://www.powerwalker.com/datasheet/Line-Interactive/PowerWalker VI 2000 LCD.pdf).
My power usage is nowhere near 80% for the PSU or 60% for the UPS. I had a power outage the other day, and since I was too bored to shutdown my computer, I put it to sleep, turned off the monitor and speakers.
Under light usage my PC could do something like 30 minutes on the UPS battery, so I figured that it could do hours in sleep mode. After 15-20 minutes that the power was out, I started hearing clicking sounds (they came from the PSU) and then the PSU started smoking. Luckily my equipment is Ok.
I don't really know what happened, maybe you can help me understand. The UPS still seems to work fine. Is it the UPS battery that fried the PSU? Was the PSU bad? I don't really believe in coincidences, and I can't ignore the fact that the PSU died under battery supplied current (and in sleep mode).
Another clue that might point to a bad UPS is that when the speakers are off and in battery supplied current their power led remains on! Is this kind of noise normal? Can you provide some insight?
My power usage is nowhere near 80% for the PSU or 60% for the UPS. I had a power outage the other day, and since I was too bored to shutdown my computer, I put it to sleep, turned off the monitor and speakers.
Under light usage my PC could do something like 30 minutes on the UPS battery, so I figured that it could do hours in sleep mode. After 15-20 minutes that the power was out, I started hearing clicking sounds (they came from the PSU) and then the PSU started smoking. Luckily my equipment is Ok.
I don't really know what happened, maybe you can help me understand. The UPS still seems to work fine. Is it the UPS battery that fried the PSU? Was the PSU bad? I don't really believe in coincidences, and I can't ignore the fact that the PSU died under battery supplied current (and in sleep mode).
Another clue that might point to a bad UPS is that when the speakers are off and in battery supplied current their power led remains on! Is this kind of noise normal? Can you provide some insight?
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