kev12mich Posted October 29, 2007 Share Posted October 29, 2007 I'm going to be purchasing a battery backup system for my computer sometime soon, but I've heard reports of them making my PSU have a constant buzzing noise. I don't mind if it will be buzzing when running on battery power, because that would only be for a while. However, when it is running on power from the outlet through the UPS, I want no buzzing whatsoever. Who has a UPS that would meet my requirements? what brand/model is it? thanks. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 29, 2007 Corsair Employees Share Posted October 29, 2007 I would check with the respective makers of that type of device, however there will always be some noise associated with that type of device. Link to comment Share on other sites More sharing options...
kev12mich Posted October 29, 2007 Author Share Posted October 29, 2007 I would check with the respective makers of that type of device, however there will always be some noise associated with that type of device. While it's running off of battery power or while it's running normally? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 29, 2007 Corsair Employees Share Posted October 29, 2007 It will depend on the type of UPS, some will run from Battery all the time and some only when the AC power is lost. But from what I have seen all of them will make a bit of noise. Link to comment Share on other sites More sharing options...
EliteKiller Posted October 30, 2007 Share Posted October 30, 2007 FWIW I have a CyberPower 800AVR, and neither my HX520 or EarthWatts 430 make any audible buzzing noises. Link to comment Share on other sites More sharing options...
Garvin Posted October 30, 2007 Share Posted October 30, 2007 I have an APC Back-UPS XS 1200 and an APC Back-UPS XS 1500 (true sine-wave output). Not a hint of a buzz anywhere. Link to comment Share on other sites More sharing options...
lalittle Posted March 27, 2008 Share Posted March 27, 2008 I have an APC Back-UPS XS 1200 and an APC Back-UPS XS 1500 (true sine-wave output). Not a hint of a buzz anywhere. I just wanted to point out that neither of the units listed here (PC Back-UPS XS 1200, APC Back-UPS XS 1500) puts out a true sine wave. Both of these models output stepped sine waves. Larry Link to comment Share on other sites More sharing options...
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