This UPS shall do?

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nsu1fahim

Prominent
Dec 27, 2017
11
0
510
My psu : Antec True Power Classic 750 W
My pc should consume not more than 500W-550W
My ups : 1200 VA

so now am I in trouble? or the UPS should work okay with the load?
 
Solution
G
A 750W PSU means nothing; it may only draw 60W when the system is idle. You estimated your system will draw 550W maximum; since the PSU is 90% efficient at that load, it will draw 550W/90*100=611W from the UPS. I also presume you'll stop doing whatever draws that much current as soon as there's a power outage.

You should connect the PSU to the UPS, make your system very busy and pull the UPS plug from the wall to ensure the UPS works fine and the PC keeps on working.
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GhislainG

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Jul 16, 2008
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A 750W PSU means nothing; it may only draw 60W when the system is idle. You estimated your system will draw 550W maximum; since the PSU is 90% efficient at that load, it will draw 550W/90*100=611W from the UPS. I also presume you'll stop doing whatever draws that much current as soon as there's a power outage.

You should connect the PSU to the UPS, make your system very busy and pull the UPS plug from the wall to ensure the UPS works fine and the PC keeps on working.
 
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