Looks like I will have to try a simulated power failure on a weekend.

I recall that there is an issue with running BOINC as a service, it runs in its own limited account space and cannot detect the GPU.

The present estimated run time is 36 minutes.
As the options are set now the APC UPS and software will put the PC to sleep when 5 minutes of battery remain.
If the outage is less than around 31 minutes the PC will crunch on with no interruption.
if it enters sleep it does not start automatically you must use the start button.
This scheme prevents corrupting the filesystem/OS if power was lost during a disk write operation.
Also saves memory to disk so that work can resume where it left off.
This is vastly superior to what I had, which is an old UPS without shutdown software that runs until the battery is depleted.

Thanks for the replies deltavee and PecosRiverM, they were helpful.

Yeah I have a APC back ups xs-1000.

If it does lose power everything shuts down properly once the battery gets too low. So bionic workunits aren't corrupted nor the OS.

It works like a charm especially if you get some brownout or a power outage that lasts a week. Fun fact last power outage the amount of voltage coming through the lines was like five volts. So I could have used the ups tower that was still reading voltage to power up some devices like my cell phone. Sadly I had this revelation on the last day of the power outage.

I was even able to charge my 3DS in several hours using the upc tower which was like I said getting five volts from the power line.