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I'm thinking of getting a "Back UPS" power strip
90 bucks on New Egg. It's a 450 Watt.
However, my Power Supply IN MY Comp is 480Ws....then you have to figure in the Monitor and Cable Modem.
That goes OVER 450watts
Unless the UPS Wattage number is different than the REPRESENTATIVE number?
There are offical ways of calculating the needs etc...but the general jest is that in the event of a power failure you want to be able to shut down gracefully. Meaning the more power the ups has, the more time you get to shutdown.
Well, should a 450 W UPS be able to cover my 480 W power supplyQuote:
Originally Posted by Steve R Jones
That's really my question :)
Try this calculator then.
http://www.csgnetwork.com/upssizecalc.html
It's my understanding in those calculators for UPS, is, it does not want the wattage of your psu, it wants the watts used by the computer, correct? So, in essence, a PSU wattage really has nothing to do with UPS power wattage. It doesn't interact with each other. But the others are right, the more wattage a Universal Power Supply has the more, usually, time you get to save your work when the electric goes out.
OOOOHQuote:
Originally Posted by photolady
okay....a 480 W power supply doesn't mean I'm USING all 480 watts, it just means the PSU can support up to THAT amt (480)
Hm, going to be hard to figure...Ijust dont want to hand out a HUGE chunk of change for a UPS when I really don't need to
Just need enough for the Sci-American Cable modem, the NEC monitor and of course the rest of what I need to run the system.
I thought the PSU was a good "benchmark" to follow when purchasing a UPS
That's wierd....the "User Site Voltage" is defaulted to 230, then I read up on it, and it says north america uses 120.Quote:
Originally Posted by Train
So i took out the check for 230 and obviously put it in 120....said it couldn't find a UPS for my specs
However it also says UPS are designed FOR the 230 specs....
Use this page then
http://www.apcc.com/tools/ups_select...rslr/index.cfm
You will need to plug something [I put garbage] into the top 2 lines.
Mine comes up with:
Total Power (Watts): 315
Total Power (VA): 450
Operating Voltages: 120
Hope that helps out.
My main rig (the Core2 specs in my sig), runs at around 350 Watts, measured under actual operating conditions, including 24" & 20" monitors. That gives me an approximate runtime on my 1500VA UPS of around 45 minutes. So if you just need 10 or 15 minutes to save your work and shut down, that 450VA one should do you fine.
yeah, Im getting irritated with these 2-3 second power outages due to the summer time powerQuote:
Originally Posted by SuperSparks
Happens about 2 or 3 times a week.
You're saying I might need a 450 VA or 450 Watt (don't want to switch the 2) LOL
Thanks
Quote:
Originally Posted by Train
It's probably because you when you went into apcc.com's site, the Country Code at the end of the URL you used (above) was "MT", which is Malta. Change it to "US" and the "120" (voltage) should be checked.Quote:
Originally Posted by hambone2
APC BE750G 750 VA 450 Watts 10 Outlets Power Saving Back-UPS ES - $89.99 with Free Shipping*
http://www.newegg.com/Product/Produc...82E16842101311
Providing an answer without the reasons why is akin to lying. The following are the numbers.Quote:
Originally Posted by hambone2
Most computers consume 200 watts (which is why so many brand name computer power supplies are more than sufficient at 350 watts). Then we compensate for other problems such as peak demand and reactance. That means the computer may need 350 or 400 watts (even though it mostly only needs 200). Then look at the UPS. These things are made so cheaply that, for example, its battery may degrade quickly (ie three years). So we enlarge that UPS for battery degradation. Well, that is may 600 or more watts.
Numbers provided with the reasons why. That 480 watts comes from where? Only way to get better numbers is to buy something that will provide those numbers such as a Kil-a-Watt.
The wattage of the UPS is almost irelevent if all you are doing is using it for glorified, power smoothing.
A PC consumes most power to boot up (spin disks send power to cold components etc). So unless you are running a graphics app/card during the power outages, almost anything over 200Watts would suffice.
GTX280 3x SLI - 520W and that is just for the cards.
HD4870X2 CF - 510W