Thread: UPS needs more input of 150 v to 275 V

I have recently bought a system (configuration: Core 2 Duo E7500, Intel DG41RQ motherboard, 1 GB Palit GeForce 9600, 2 GB Ram, 320 GB hard disk). The problem is that I have a UPS manufactured by Ratin, which needs an input of 150 V to 275 V AC, 50 HZ +6% and can output 600 VA, 220 V AC, 50Hz +/-2 % with a transfer time of 3 ms. Whenever there is a power failure, my system reboots itself, that too even when I am playing games or watching movies. This problem does not occur when the system is kept idle before the power failure. I switched my UPS with my friend's UPS and the problems do not occur with his UPS. Also, my friend who is using my UPS does not face the same problem that I did. What may be the reason behind this? Is it my system or the UPS? I am using Widows Vista Ultimate operating system.

Hello. You will need to check the specifications of your UPS properly as your problem seems to be occurring because the UPS cannot deliver enough power when there is a power cut. The switching time of 3 ms is fine, but the power requirement of your system while watching a movie or playing a game is high, and the UPS cannot deliver the same when there is a power cut. It could also be the fault of a bad quality power supply unit installed in your computer. Your friend has a better UPS (or configuration with lower power draw) and that is the reason you are not facing a problem using it. Lower quality UPSes cannot deliver the proper power requirements when the need arises. If your friend is using the same UPS as yours and is not facing the same problem, then have it inspected by the manufacturer. I would suggest you use a branded UPS and preferably an online or a line-interactive model if you cannot afford an online UPS. A good UPS should have the lowest SWitching time and should be able to support the power requirement at full load. Also a UPS rating should be matched with your computer load rating. For example, if your computer has a power rating of 600 watts, then a 1 KVA UPS should be deployed and not a 600VA UPS. To find. the power rating of your computer, add up the power consumption of your computer, monitor and other equipment connected to the UPS. The power rating of each device is printed on its body and/or in the user manual.