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APC RS BR800i any explanation and presumed problem

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.


APC RS BR800i any explanation and presumed problem

This was originally posted on APC forums on 5/8/2010

Hello all, here Laura from Italy.
I have a new APC RS BR800i. Now i have 2 questions about this UPS:

1) When i turn on the unit, first led green flashes, and is it ok...but immediately after any seconds (9 seonds?), yellow LED ("on battery" led) lights on, the unit emits a buzzing for a few seconds (10 seconds), after this seconds the yellow led switch off and everything works normally with only first green led on. But is this normal behavior? Why when i swith off the unit and, after, i power on it the yellow led lights on and a buzzing appears for 10 seconds?

2) When i work on my pc the unit is very quiet. However, when consumption of the PC (in game) increases, the unit starts to emit a low non continuous buzzing. It's not annoyingIt's but is it normal?

ps.: my power supply is an active PFC by Seasonic.