Lound whistling type sound - back up es 500

[Anonymous user]

Hey hey,

I was gaming and all of a sudden the PC goes dead and there's a lound whistling like sound coming from my ups. I shut off my pc's internal power supply and turned the ups off. I turned it all back on and everything seems fine.

Question what does a lound whistling type sound indicate?

I know a beeping means the power if off and the ups if working. I've never heard this particular sound from my ups before.

Thanks,

AL

[Anonymous user]

Found the answer in knowledge base.....

2. UPS capacity is overloaded - unit will emit a loud solid tone, and the red "overload" LED will be illuminated, until the load is sufficiently reduced.

[BillP · Accepted solution]

There's no specific overload indicator on your UPS, but if the power to your PC cut out immediately upon hearing that solid tone, then it would be an overload.

You mentioned "gaming". I wonder if your PC setup is much to powerful to be backed up by this 300W UPS. I would guess that this is true since the UPS appeared to indicate an overload situation.