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My APC BE750G doesn't keep my computer on for a second! Am I doing something wrong?

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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scott_F_apc
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My APC BE750G doesn't keep my computer on for a second! Am I doing something wrong?

This was originally posted on APC forums on 6/29/2015


Hi, I have a APC BE750G that I bought to save my iMac from potential disaster from power outages.

I have a 27" imac and 3 external harddrives on the "Battery + Surge" side.

I have a printer, a small guitar amp and an iphone plug on the "Surge-Only" side.

This morning the power went out in my house for literally one second, it just flickered off and then it was on again. The cable box reset, I had to reset clocks, but I was really hoping that the iMac and drives would've stayed powered for the short outage.

I was getting dressed for work so the iMac and drives were in sleep mode.

When I woke up the iMac to check it I got the 3 dreaded "Drive not Ejected Properly" messages. (Now I have to keep my fingers crossed that I can repair the 3 drive tonight when I get home.)

I bought this APC BE750G specifically for this purpose, that it would keep my sleeping iMac and drives powered during short outages. I never intended to work during an outage, I just wanted enough time to shut down.

Is there some setting I need to select to get the battery backup to work? The UPS has a green light in the middle so I thought everything was ok?

Is the APC BE750G not powerful enough to power an iMac and 3 drives for a couple minutes?

Any help or advice will be greatly appreciated!

Thanks, Scott

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BillP
Administrator Administrator
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Re: My APC BE750G doesn't keep my computer on for a second! Am I doing something wrong?

This reply was originally posted by Jordan on APC forums on 6/30/2015


Hello,

Often times Mac's have very specific power requirements and are not compatible with Back-UPS, but require a Smart-UPS unit due to a transfer time requirement and need for a better sine wave output while on battery.  I would simulate a test with the unit (probably with only the Mac plugged in to avoid drops on your other equipment and rule out other issues) and see if the unit will keep the Mac up when you pull the power plug of the Back-UPS from Utility power.  If not, the Back-UPS may be the wrong unit for your Mac.

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BillP
Administrator Administrator
Administrator
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144

Re: My APC BE750G doesn't keep my computer on for a second! Am I doing something wrong?

This reply was originally posted by Jordan on APC forums on 6/30/2015


Hello,

Often times Mac's have very specific power requirements and are not compatible with Back-UPS, but require a Smart-UPS unit due to a transfer time requirement and need for a better sine wave output while on battery.  I would simulate a test with the unit (probably with only the Mac plugged in to avoid drops on your other equipment and rule out other issues) and see if the unit will keep the Mac up when you pull the power plug of the Back-UPS from Utility power.  If not, the Back-UPS may be the wrong unit for your Mac.