Thanks for the reply,My ups is 6 year old battery was changed two years ago,Why is the ups shutting down immediately in power cut while gaming By the way my psu is corsair vs550 [MENTION=20614]Faun[/MENTION] what was the price of the ups
It's most probably because of dead batteries. Check the voltage in batteries using a multimeter. Which batteries did you change ? Can you post a pic ?
Back then it was around 5k.
Even if your PSU is 550Watts, you will only squeeze the amount which is required to run your system.