UPS does not give back up when the power goes off (Gaming)

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anwacj

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Jun 2, 2014
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Hi,

I have a vangard ups. however, when gaming (especially high end games like fc4), the system just shuts down when the power goes off. the ups does not give any back up.

When am browsing normaly like watching videos etc, the ups gives back up. i know its not my psu as ive brought a new one and its working perfectly.

i want to know why this happens and how i can resolve it. my ups is about 6 months old.
 
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synphul
I'm only taking a guess since I don't know the exact model of your ups or the wattage your pc and monitor are drawing from the ups outlet, but I would say your ups is a bit on the small side for power capacity. Usually ups units will state some scenarios to give you an idea of your actual backup time. You can't match your psu wattage to the ups wattage, it's not that easy.

To give an idea, I chose a random cyberpower 510w ups (most psu's are 500w or more). They state their specs in terms of power consumption (not based on max psu wattage, but actual draw from the outlet) as the following:

If you're drawing 50w, it will last 63min. 100w, 32min - 330w, 7min - 500w, only 3min of runtime. You'd have to use something like a kill-a-watt...
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synphul

synphul

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Mar 11, 2011
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How much back up time do you have when you're doing light browsing and seem to have battery backup? Is there a chance your ups isn't a very large one and the significantly higher power draw of the cpu and gpu at full tilt are draining the reserves to the point you have no backup time?
 
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anwacj

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Jun 2, 2014
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You are absolutely right. when the power goes off when am gaming, the battery just dies out completely giving that huge beep. this happens in about a second.

when browsing normally, the ups gives about 12-15 min back approximately.
 
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synphul

synphul

Champion
Mar 11, 2011
9,477
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54,965
I'm only taking a guess since I don't know the exact model of your ups or the wattage your pc and monitor are drawing from the ups outlet, but I would say your ups is a bit on the small side for power capacity. Usually ups units will state some scenarios to give you an idea of your actual backup time. You can't match your psu wattage to the ups wattage, it's not that easy.

To give an idea, I chose a random cyberpower 510w ups (most psu's are 500w or more). They state their specs in terms of power consumption (not based on max psu wattage, but actual draw from the outlet) as the following:

If you're drawing 50w, it will last 63min. 100w, 32min - 330w, 7min - 500w, only 3min of runtime. You'd have to use something like a kill-a-watt power meter (plugs into the wall outlet, then you plug your device into it) to tell you how much power you're actually pulling. Find out what your pc tower is drawing while gaming (high load) and then find out what your monitor is drawing - add those 2 together to find out your total wattage. Then look at a ups's specs to see if it will give you enough backup time from the time you're alerted you're on battery power to exit your game and safely shut down.
 
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