Hello - I currently have a Cyberpower 1500 AVR ups which will not work with my custom made pc that has the Thermaltake 1200W Toughpower power supply. What it does is when power is cut off from the ups and it goes to battery power, my computer instantly shuts off. However, everything else that is plugged into the UPS is still on with its battery. Only the pc with the Thermaltake power supply cuts off whenever there's a power issue. Could someone tell me what other UPS I could use that's compatible with the Thermaltake power supply? Thanks for your help.