CyberPower PP1100SW Smart App Sinewave UPS - 1100VA/700W AVR 7-Out Tower SNMP/HTTP Review

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(More customer reviews)I have used APC UPS backups exclusively. I was surprised like many people when one of my powerful APC backups would not run my Dell Studio XPS 9000 computer. When I called Dell about the problem, they were surprised and couldn't really help. When I talked to APC support, they knew all about the problem. They said I needed a backup that would produce a real sine wave because of the requirements of the power supply that was included with the Dell computer.
The APC person told me what APC unit would solve my issue. However, the unit was pretty expensive, and from reading the reviews, the unit was super noisy all of the time. I ended up ordering the CyberPower PP1100SW because it was cheaper. This unit actually works and is quiet. While the unit has a fan, the fan only turns on when there is a power loss. Under normal use, the unit makes no noise. If there is a quick brown out, my Dell keeps running and the unit stays quiet. If there is a power loss, after a few moments, only then does the fan turn on. This is all fine since the goal at that point is to run the machine long enough to get everything shut down properly.
If you are worried about noise and price, this is the unit to get! APC needs to get their act together and make their units quiet and reduce the price.


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CyberPower PP1500SWT4 Smart App Sinewave UPS - 1500VA/1000W AVR 8-Out Tower SNMP/HTTP Review

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(More customer reviews)I purchased this UPS to isolate my computers and network disk drives from the AC line in a home office. The unit has worked well for that purpose. It has not had to engage too many times since I installed it, but it has seemed to do the job when it did. I chose this unit because I wanted a UPS that puts out a real sign wave AC waveform when it goes to battery operation. Most home office units put out more like a square wave (cheaper to produce) that does not work well with some modern computer power supplies that are power factor corrected. It fits neatly under my computer table, and shows basic functioning on the front panel. There is also software (both a personal edition and a business addition with more features) that runs on a computer connected through a USB or serial port. This software has very useful information including how much power is being drawn through the unit (on line or battery power), voltage, etc. as well as a history of actions taken. The only issue I found, and it is minor, is that my computer had trouble recognizing the connected UPS when interfaced through a USB hub. I talked to the manufacturer, who was very responsive, and told me it works better when plugged into a direct USB port on the computer. I tried that, and it has worked for me. The total load in my office is normally only about 300 watts as reported by the UPS, so it will power my office on batteries for more than 30 minutes--which almost always outlasts any power outage I experience. The software can be configured to notify the attached computer of a power failure (batteries engaged) and have it shut down the computer when the batteries get below a certain level. I have not had time to try this feature. There are also several test modes that can be accessed through the software to verify operation, for example, by simulating a power failure. I found this very useful to give me confidence in the unit. I am not sure what else to say. It provides sign wave backup AC at a reasonable price.

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APC SMT750 Smart-UPS 750VA LCD 120V Review

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(More customer reviews)Purchased this to replace an older APC that went on the fritz. Though the company sent me a direct replacement for the older APC, I went with this purchase to future proof as it seems newer computers will need this type of UPS that produces a sine wave output. Item works as any other, except it comes with a web-based system to configure options, shutdown notifications, etc. To that end, I have a reliable electric system that this has not had to do too much 'work' so I cannot comment on its functionality under demanding conditions.
The buttons and LED on the front are neat, though not user-friendly enough to figure out if your UPS will be installed in a remote or difficult to access area, as mine is. Basically I went to shut it off and accidentally changed it to Spanish menu's which was not fun trying to get it back. It does show the load currently on the system, which is neat but not something Im going to be using very much since its tucked out of view.
Probably would buy again, given reputation of company, replacement policy, etc.

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Cyberpower PP2200SW UPS - 2200VA/1500W PureSine AVR Boost/Buck 8-Outlet RJ11/RJ45 Tower EMI/RFI USB Review

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(More customer reviews)This is a great product, I work out of my home most of the time. I have the same problem some of reviewer had when they turn on the home office systems all at the same time, that is, most UPS will shut down, when you have a very powerful computer, big monitor, an all in one laser MFC plus a laser printer. Or when you wake up a laser MFC or a laser Printer, the UPS shuts down, because the equipment needs that extra juice to warm up. None of other UPS that I purchase before can handle the power needs, unless you pay over $1,000 for UPS. That is the main reason I purchase this product. I did not think about the NEMA 5-20R until I got the unit. I took a look at the plug and realized that I do not have an outlet to plug it into. For those of you that do not understand NEMA 5-20R Receptacle. It means that you need a 20 AMP outlet that looks like the second picture from the left. If you do not have an outlet that looks like that. You need to call an electrician to install a 20 AMP outlet. In the long run, it is cheaper to buy this unit vs buying two or three UPS, because it really drain the life out of the small UPS batteries. It is also not worth replacing the batteries, because the replacement batteries die out after one year. I know, because in the past, I have one UPS for one machine.

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APC Smart-UPS SMX1500RM2U X 1200W/1500VA LCD 120V 2U/Tower UPS System Review

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(More customer reviews)I was getting frequent 5-10 second brown outs in my community and it was causing havoc with my mirrored RAID disk array when my PC would loose power; would take 3 hours to rebuild and verify data integrity. My PC has a newer Active PFC power supply and would not work with my older UPS which did not output a pure sine wave. I also usually have one or two other dedicated servers I use for software development.
Did some research and settled on this APC UPS. The UPS has worked flawlessly. Keeping all my expensive servers online during the brown outs and saving a ton of time from the RAID verify/rebuilds that I was suffering from.
This unit comes out of the box setup as a rack mountable UPS, but the conversion to stand-up tower mode is very easy to do. Just be aware that this thing is REAL heavy and requires you to flip it around a bit to do the conversion. I ended up with a couple of bruises from resting the unit on my legs. No special power outlets are required. This unit uses the normal household plugs.
I have a constant 300-400 watt power requirement with my main PC on; 1200 watt power supply, 4 hard disks, ATI 5800 series graphics card. If I turn on my other two servers I have a 800 watt drain with all 3 computers on. UPS reports 40 minutes of stand-by power if I just use my main PC. It reports 22 minutes of standy-by power if I have all 3 computers running. The front panel LCD display reports a lot of information including current watt usage, stand-by power time, etc...


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