Thanks for the information. In that case I guess I'm going to have to contact Antec and see what they have to say. The PSU should still be covered under warranty.
The PSU comes with the Sonata III 500 case. It's the Antec 500 Watt EarthWatts PSU.
I've tried both APC and Tripplite UPS systems on it with the same results. It appears that because it's a PFC PSU that I'm going to need to use a UPS which out puts a true sine wave.
So it appears that the power supply which comes with the Sonata III 500 case is an Active Power Factor Correction (PFC) PSU which requires the use of a much more expensive UPS to provide battery backup.
Is it possible to swap out the supplied PSU and replace it with a non-PFC PSU? This might...
Thank you for your very quick reply. You hit the nail on the head. Based upon your response I was able to do a little more research on the PC's power supply and it is a PFC power supply. So now it looks like I'm going to have to lay out significant dollars for a UPS.
Do you or anyone else...
I'm having a very strange problem and I'm hoping someone here can help.
I have my PC on a UPS (actually I've tried 3 different units ranging from 550VA - 1000VA and it doesn't make a difference). Anytime I get a power glitch of any sort, or self test the UPS, the PC crashes. Anything else...