Power problem

[AdikRahman]

OK so, I bought a new PC recently, (LINK) and since power outage isn't uncommon in our country, I bought a UPS along with it. I have no knowledge on UPS powers so, I bought the one recommended by the seller, a DigitalX 850VA UPS.

Now, when there's a power outage while I'm using the PC for web browsing or playing some old games, the UPS kicks in nicely.

But, when there's a power outage while I'm playing a high end game, like DARK SOULS III or Rise of the Tomb Raider or any new high end game, the UPS gives a continuous clicking sound and the PC gets turned off.

Now, what's wrong here?

1. Is the UPS not powerful enough to run my PC? I mean, is 850VA not enough?
2. Or, is it defected and not running on it's full potential?

What do I do? Should I try to repair the UPS or buy a new one?

 

If I buy a new one,

4. How do I calculate the VA requirements for my PC?

I like LMG alot and I've had a great experience in this forum before and that's why I'm back.

 

Hope to get some GREAT help

[Oswin]

well the UPS is designed only to give you time to shut down the computer correctly. if you are putting it under load it should consume the power quickly

[AdikRahman]

I think I wasn't clear enough. When I say, " PC gets turned off " I meant in seconds. The electricity gets disconnected instantly. I don't even get the time to press the shutdown button.