I'm pretty sure the receptacle is fine. I suspect that the instant-on fuser of the laser is dropping the voltage momentarily, causing your UPS to transfer to battery, at which time it fails because your battery is shot. You could check the UPS to see if it has adjustments for transfer voltage to make it stay on-line during that momentary drop caused by the fuser, but the ES series units look fairly spartan in terms of adjustments.
It's also possible that you're overloading the UPS. The Back-UPS ES 350 is only good for 200 watts. While your typical basic PC probably doesn't exceed this at idle, it's possible that with a monitor and some other items that it could be. > -----Original Message----- > From: hardware-boun...@hardwaregroup.com [mailto:hardware- > boun...@hardwaregroup.com] On Behalf Of Hunter, Gary > Sent: Sunday, February 14, 2010 11:21 AM > To: hardware@hardwaregroup.com > Subject: Re: [H] Power Issues > > Why didn't I think of number 1 LOL > > I unplug it and the computer switches off. The UPS then beeps to > indicate no power. So I guess the battery in the UPS is enough to keep > it's monitoring up but not the PC. > > I am still wondering if the socket is bad though. >
