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Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

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.

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stevemills_apc
Crewman
Crewman
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310

Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This was originally posted on APC forums on 6/17/2013


I have PowerChute installed, but it reports no sort of incident regarding power. My PC just shuts down, though I do hear a beep at the UPS. When this first happened, it was giving off a continuous squeal and had to be reset. I adjusted the sensitivity to LOW in PowerChute, and now it just lets it shut down with a single beep.

My two monitors are on the second and third battery-backed outlets, but they stay on.

So is this just my PC shutting down on it's own, or is the backup faulty?

I have used this UPS since it was purchased new in 2011, but it's only been on this particular PC since last winter. It has always supported two monitors, and a few peripherals on the surge protected circuit.


Accepted Solutions
stevemills_apc
Crewman
Crewman
0 Likes
0
310

Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This was originally posted on APC forums on 6/18/2013


I have PowerChute installed, but it reports no sort of incident regarding power. My PC just shuts down, though I do hear a beep at the UPS. When this first happened, it was giving off a continuous squeal and had to be reset. I adjusted the sensitivity to LOW in PowerChute, and now it just lets it shut down with a single beep.

My two monitors are on the second and third battery-backed outlets, but they stay on.

So is this just my PC shutting down on it's own, or is the backup faulty?

I have used this UPS since it was purchased new in 2011, but it's only been on this particular PC since last winter. It has always supported two monitors, and a few peripherals on the surge protected circuit.

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9 Replies 9
BillP
Administrator Administrator
Administrator
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310

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This reply was originally posted by Jonathan on APC forums on 6/19/2013


The UPS do have two sets of outlets, Surge Only and Battery Backedup outlet.  Make sure that critical equipment goes on the battery backedup outlet.  Also, the PC that has been shutdown shouldn't cause the UPS to beep.

stevemills_apc
Crewman
Crewman
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0
310

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This was originally posted on APC forums on 6/19/2013


Yes, as I was describing, I have kept the monitors and the PC on those three batter-backed outlets. The PC has been in the one which could be considered "special", in that it is slightly separated from the other two (the one to the left). I was speculating it might be a circuit unto itself, as well as backed by the battery. I will experiment further and see if anything else gets shut off in that socket. Currently nothing is plugged into it, so I will test a single monitor and see what happens.

The beep happens at exactly the moment it shuts off the PC.

BillP
Administrator Administrator
Administrator
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310

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This reply was originally posted by Jonathan on APC forums on 6/18/2013


What if you remove the PC and just leave the monitor attached on your UPS?  Would it still beep?  If it does, what would happen on the unit?

stevemills_apc
Crewman
Crewman
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310

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This was originally posted on APC forums on 7/3/2013


There may be something more afoot than an old battery, yes, but I have an old battery nonetheless. If it continues to fail after that, I will move to another brand.

stevemills_apc
Crewman
Crewman
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0
310

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This was originally posted on APC forums on 6/30/2013


Since my last response a week ago, I have had only the two monitors on the battery side of this UPS. Just a few minutes ago, they both went off and the unit started beeping. A 1-2 second sound followed by continuous short beeps. This continues until you power off the unit. It wouldn't run two monitors, but it is now running one.

Does this indicate the battery needs replacement, or should I just abandon this thing for a new one?

Unfortunately, I uninstalled the PowerChute application, so I can't see what was happened on the unit side.

BillP
Administrator Administrator
Administrator
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309

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This reply was originally posted by Angela on APC forums on 7/2/2013


Have you tried a pull plug test at all (pull the plug yourself and see what happens to simulate an outage)? Sometimes I find these units so simple that they are difficult to deal with laughing

Anyway, do you see any LEDs with the beeping?

stevemills_apc
Crewman
Crewman
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310

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This was originally posted on APC forums on 7/2/2013


That's an interesting idea, Angela N. I just tried it. There was a single beep, the green LED stayed on (it has in past tragedies, as well - to answer your question), then 4 short beeps, then just continuous power to my monitors. I plugged it back in, and it seemed to reset itself. Is that what I should have expected?

I have ordered an OEM replacement battery already this past weekend, just in case that's the problem.

BillP
Administrator Administrator
Administrator
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0
310

Re: Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This reply was originally posted by Angela on APC forums on 7/3/2013


Well, we were just trying to simulate a power failure. It seems like it acted normally during your simulation so I don't see why it would not during a normal power failure (if that is even what happened during the last scenario).

stevemills_apc
Crewman
Crewman
0 Likes
0
311

Back-UPS 350 beeps, then my PC shuts off but the monitors stay on

This was originally posted on APC forums on 6/18/2013


I have PowerChute installed, but it reports no sort of incident regarding power. My PC just shuts down, though I do hear a beep at the UPS. When this first happened, it was giving off a continuous squeal and had to be reset. I adjusted the sensitivity to LOW in PowerChute, and now it just lets it shut down with a single beep.

My two monitors are on the second and third battery-backed outlets, but they stay on.

So is this just my PC shutting down on it's own, or is the backup faulty?

I have used this UPS since it was purchased new in 2011, but it's only been on this particular PC since last winter. It has always supported two monitors, and a few peripherals on the surge protected circuit.