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UPS: Uninterrupted Power Supply?

post #1 of 8
11/10/12 at 11:16pm
Thread Starter 
Hello!

Hopefully this post is in the right place.

I am trying to collect the final (and what seems to be, the most difficult) piece of my build, a UPS.
Which UPS is a good choice for my build listed below; and is a pure sine wave UPS that important?
My power supply unit is a "modular active PFC power supply".

Thanks in advance for any information that is shared!


APC bx1000g http://www.amazon.com/APC-Back-UPS-BX1000G-1000VA-Tower/dp/B0034KO59U/ref=sr_1_1?s=electronics

APC be750g http://www.newegg.com/Product/Product.aspx?Item=N82E16842101311&Tpk=apc%20be750g

my build:
CPU: i5 3570k ivy
Mobo: ga-z77x-ud5h
GPU: EVGA nvidia geforce GTX670 FTW 2gb
RAM: G.skill ripjaws x series 4x4gb
HD: western digital caviar black 7200rpm 1 terabyte
Optical Drive: Asus
PSU: Corsair HX series HX750 watt
Case: Antec 300 series
Edited by anoverclock - 11/10/12 at 11:50pm
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post #2 of 8
11/11/12 at 10:09am
A UPS is just there to hold a system up when the power initially goes down, to protect it, keep it running and help it carry over to e-power if its available. I work at a hospital and we keep critical PC's on them.

But even a $100 UPS will only last a few minutes, here is a quote from your bottom link:

"This APC BE750G UPS provides 750VA apparent power; 450 Watts output which is enough to support most mainstream equipment. The maintenance-free sealed Lead-Acid battery enables the UPS to run for a whole 2.5 minutes at its full load (450W) and 11.8 minutes at its half load (225W), offering you enough time to close files and protect data. It has ten surge-protected outlets to protect enough devices at the same time".

If you want a UPS to last more then 10 minutes or so, be prepared to pay! lol.
Most home users should need only a nice surge protector.
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post #3 of 8
11/11/12 at 10:49am
I currently run this UPS on my setup:

http://www.amazon.com/APC-SUA1500-1500VA-Servers-Networks/dp/B00006BBK8/ref=sr_1_12?ie=UTF8&qid=1352659138&sr=8-12&keywords=Smart+UPS1500

The key to buying a UPS is to get one that is line interactive. This means that the power is always going through the transformer which keeps the output at a constant voltage and kills off any unwanted line noise. The cheaper units, such as the second link you posted, are not line interactive. Those units just kick over to battery when the voltage it's receiving is either too high or low, it does not clean up the power that you are running your devices on.

If you want a UPS that will protect your system from voltages surges and dips then you need to buy a line interactive unit. I'd highly recommend staying with the APC brand as the only parts that I've had fail on me are the batteries, which is completely normal and quite easy to remedy.

http://www.newegg.com/Product/Product.aspx?Item=N82E16842301290
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post #4 of 8
11/11/12 at 11:37am
Thread Starter 
Thank you all for the feed back!

In my research I have found the opinions split; some say only a surge protector is needed and some say a UPS is a good idea. I do not have much experience with higher end computers and how an instant shutdown from a power outage affects the computer as this is my first mid to high end build.

Because I am unfamiliar (and have $1,200 invested in this machine) I will go with a UPS. I only need the UPS to run my computer about 1.5 minutes, just long enough to save and shutdown.

I have read that the new higher watt/higher end PSUs use PFC (power factor correction) and therefore are not compatible with most $150 UPSs as they are "simulated sinewave" rather than "sinewave".


However, with further research I have found this CyberPower cp1000pfclcd UPS that is "line-interactive" and "sinewave" and only 140 dollars. I wanted to stay with APC but my budget for this UPS is 150 dollars. I only need something to protect against occasional outages and dips in power, it only needs to run for 1.5 minutes and I will not be using my computer during thunder storms to avoid lightning and power outages. Is this CyborPower UPS linked below a good choice for the requirements listed earlier? Is CyberPower a good brand?

Thanks.

http://www.cyberpowersystems.com/products/ups-systems/adaptive-sinewave-series/CP1000PFCLCD.html?selectedTabId=specifications&imageI=#tab-box
Edited by anoverclock - 11/11/12 at 11:53am
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post #5 of 8
11/11/12 at 11:58am
Quote:
Originally Posted by anoverclock View Post

Thank you all for the feed back!
In my research I have found the opinions split; some say only a surge protector is needed and some say a UPS is a good idea. I do not have much experience with higher end computers and how an instant shutdown from a power outage affects the computer as this is my first mid to high end build.
Because I am unfamiliar (and have $1,200 invested in this machine) I will go with a UPS. I only need the UPS to run my computer about 1.5 minutes, just long enough to save and shutdown.
I have read that the new higher watt/higher end PSUs use PFC (power factor correction) and therefore are not compatible with most $150 UPSs as they are "simulated sinewave" rather than "sinewave".
However, with further research I have found this CyberPower cp1000pfclcd UPS that is "line-interactive" and "sinewave" and only 140 dollars. I wanted to stay with APC but my budget for this UPS is 150 dollars. I only need something to protect against occasional outages and dips in power, it only needs to run for 1.5 minutes and I will not be using my computer during thunder storms to avoid lighting. Is this CyborPower UPS linked below a good choice for the requirements listed earlier? Is CyberPower a good brand?
Thanks.
http://www.cyberpowersystems.com/products/ups-systems/adaptive-sinewave-series/CP1000PFCLCD.html?selectedTabId=specifications&imageI=#tab-box

Looking at the specs of that UPS I'd say it'll do exactly what you want it to do. I'm not terribly familiar with the CyberPower brand, but I haven't heard many bad things about them. The primary reason I run my system on a UPS is for power quality. I run an extremely high end HIFI system on the same UPS to eliminate any noise that I would have with a power strip.

That UPS also has a really neat feature that mine posses as well. You can set up a shutdown cycle in the event of a power loss longer than a specified amount of time. Since I leave my computer on during the day a lot of the time I set up the APC software on my machine to run a shutdown command if a power event occurs for more than 10 minutes.
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post #6 of 8
11/11/12 at 12:04pm
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Thank you very much for the reply; you've answered my questions. The final piece has been found! lol.
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post #7 of 8
11/11/12 at 12:18pm
No problem, it's part of what I do. I do a lot of work with servers and having stable power is required. I also have a client that is a regional rep / service provider for APC so that helps too. biggrin.gif
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post #8 of 8
11/11/12 at 12:23pm
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Nice!
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