Would a 360 watts UPS give me enough to shut down?

ledmacadler

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Aug 18, 2014
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Hi,

For what I've been able to understand the maximum load would be around 480W. But I'm still a little confused. Would a 360W UPS allow me to quit anything [a game most likely] and properly power down?

Specs:

Z97-PC Mate + i5 4690
Rosewill Capstone 80 gold 750W
MSI N770 TF 2GD5/OC
1TB WD Blue HDD
1 Corsair H75
2 4GB DDR3 Corsair Vengeance

Thanks.
 
Solution
Z97-PC Mate + i5 4690 ................... 112 W
MSI N770 TF 2GD5/OC .................... 184 W during gaming
1TB WD Blue HDD ............................. 10 W
1 Corsair H75 ................................... 15 W
2 4GB DDR3 Corsair Vengeance ......... 6 W

Total .............................................. 327 Watts DC

Rosewill Capstone 80 gold 750W
Has a 91% Conversion Efficiency @ 327 Watt DC power draw ...... 359 Watts AC (i.e. at the PSU's AC power plug)

What is the power consumption of the computer monitor?

At a minimum you should be looking for a 1000VA UPS.
Don't confuse PSU output Watts with UPS output Watts. All the PSU output Watts are with low voltage where as the UPS output Watts are at your 110/120 VAC. Two entirely different things. What you have here should give you anywhere form 5 to 10 minutes run time on battery generally speaking because the 360W of the UPS is its max load in terms of Watts. Your run time duration is a function of battery size in terms of Joules or the amount of energy it can store.

BTW I have an 850W PSU and it consumes about 180 to 200 INPUT Watts when idle and that is from actual Amp readings from my PDU.
 
It looks like a 360W UPS is generally a 600VA rating. If, the OP is accurate in his load (480W) with a power factor of .95 his VA is 505. He is past the usual design the limit of overloading a 600VA rated device (80%) .

Obviously I have no way to validate his wattage number. I would never run a 400W load on 600VA UPS ....
 


I stumble upon a page that would give you the watts of all of your componets under maximum load. When I put my parts the maximum total was 480. But that is if everything is under maximum load, which I doubt it would happen. That's why I think that 360 should be more than enough for a couple of minutes at least.
 
Yes and once again you are talking about your PSU Output watts being consumed by you components. Your input watts that the PSU pulls from your wall isn't any where near that. A 360W UPS will provide a maximum of 360 watts to your PSU. So if you PSU is consuming say 300 watts max your within it capabilities.
 
Z97-PC Mate + i5 4690 ................... 112 W
MSI N770 TF 2GD5/OC .................... 184 W during gaming
1TB WD Blue HDD ............................. 10 W
1 Corsair H75 ................................... 15 W
2 4GB DDR3 Corsair Vengeance ......... 6 W

Total .............................................. 327 Watts DC

Rosewill Capstone 80 gold 750W
Has a 91% Conversion Efficiency @ 327 Watt DC power draw ...... 359 Watts AC (i.e. at the PSU's AC power plug)

What is the power consumption of the computer monitor?

At a minimum you should be looking for a 1000VA UPS.
 
Solution
You should look at some ups units, they generally give a breakdown of runtime vs power consumption.
http://www.newegg.com/Product/Product.aspx?Item=N82E16842102132

This is just for a point of reference. A 600w ups from cyberpower states runtime based on load. Even though it's a '600w' ups, at 500w it only gives 4min of runtime. At 300w, it gives 9min. For a chance to shutdown, you'd need a ups rated above what your usage is. Don't get a ups the same size as your psu, get one based on your needs and the runtime it will provide. Also factor this is to power your pc and your monitor both. (otherwise, how will you shutdown without seeing what your system is doing). Give yourself enough time to safely exit out of programs and complete a full shutdown.
 

^^^^^^^^^^ This is about the best advise you got!!!!!!
Although I think a 800VA would work just to shut off the PC. But if your already spending the money on one a few more bucks to be on the safe side is not a bad idea.

 
You also need to take into account that it may take several hours for the batteries to recharge back to full charge. If you're using your computer at the time that the batteries have not reached full charge and there is another power outage you may not have sufficient battery runtime remaining to initiate a proper shutdown.
 


It is almost double on price, but what bothers me more is the size. But I guess you're right, better to be on the up side of things and not on the "well, that didn't do anything at all" side.

Thanks