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AX750 vs. my UPS

post #1 of 18
Thread Starter 
I am looking for brown-out protection; <1 second.

My current UPS would handle my TX750 just fine, but not my AX750. I had read something about active PFC (sp.?), but it was late, and I may have confused the issue. Is there a legitimate reason I need a different UPS, and if so, what?

Thanks!

cg
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post #2 of 18
I have an EATON Nova AVR 1250 on my AX750 and it has no trouble at all.
What is your current UPS?
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post #3 of 18
Thread Starter 
Some Cyberpower 450v dealie. I know, it's a 450, but I was just looking for brownout protection. It's worked in past (but it's not old, as in lost its ability to hold a charge). How much did yours run ($$)? Basically, at idle, the PC is using ~100 watts.

Thanks for the reply!

cg
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post #4 of 18
Quote:
Originally Posted by exnihilo View Post

Some Cyberpower 450v dealie. I know, it's a 450, but I was just looking for brownout protection. It's worked in past (but it's not old, as in lost its ability to hold a charge). How much did yours run ($$)? Basically, at idle, the PC is using ~100 watts.
Thanks for the reply!
cg

Well mine is 1250VA which is 750W in terms of UPS rating. Wattage is always about 60% of the VA rating and it does AVR and line-interactive filtering. It was around $200 AUD.
Anything around 600VA with AVR and line interactivity should be fine for your set up if it only pulls ~100 watts. It is always good to overshoot when choosing a UPS.

It is the line interactive feature that will give you good brownout protection without needing to consume reserve battery as it uses a muti-tap transformer which can adjust the voltage in a certain range (about 90-140V if I remember rightly).
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post #5 of 18
As you probably already know the PSU will buzz if the UPS doesn't output pure sine-wave. Corsair "officially" recommends using a pure sine wave UPS but if you dig through their forums they've also stated that not using one shouldn't pose any problems. I never had any problems using one of the non-smart UPS's with my HX850 Corsair power supply. I usually just make sure whatever wattage I'm pulling at load is somewhat evenly matched up with the wattage rating on the UPS.
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post #6 of 18
Thread Starter 
Quote:
Originally Posted by tompsonn View Post

Well mine is 1250VA which is 750W in terms of UPS rating. Wattage is always about 60% of the VA rating and it does AVR and line-interactive filtering. It was around $200 AUD.
Anything around 600VA with AVR and line interactivity should be fine for your set up if it only pulls ~100 watts. It is always good to overshoot when choosing a UPS.
It is the line interactive feature that will give you good brownout protection without needing to consume reserve battery as it uses a muti-tap transformer which can adjust the voltage in a certain range (about 90-140V if I remember rightly).

Quote:
Originally Posted by bern43 View Post

As you probably already know the PSU will buzz if the UPS doesn't output pure sine-wave. Corsair "officially" recommends using a pure sine wave UPS but if you dig through their forums they've also stated that not using one shouldn't pose any problems. I never had any problems using one of the non-smart UPS's with my HX850 Corsair power supply. I usually just make sure whatever wattage I'm pulling at load is somewhat evenly matched up with the wattage rating on the UPS.

Thank you gentlemen. I will be back to investigate/research after work and rep you guys. For some reason, before I started looking into this, I thought maybe it had something to do with the AX's efficiency. As in, the caps, etc... weren't holding that ~1 second worth of charge before the UPS kicked in. I have read about the Corsair buzzing. I have the same UPS sitting on my other computer, which houses a TX750, and it is rock solid. The only thing I have plugged into the battery side of the UPS are my PC and one monitor (23" ips).

Thanks again guys!

cg
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post #7 of 18
Quote:
Originally Posted by exnihilo View Post

Thank you gentlemen. I will be back to investigate/research after work and rep you guys. For some reason, before I started looking into this, I thought maybe it had something to do with the AX's efficiency. As in, the caps, etc... weren't holding that ~1 second worth of charge before the UPS kicked in. I have read about the Corsair buzzing. I have the same UPS sitting on my other computer, which houses a TX750, and it is rock solid. The only thing I have plugged into the battery side of the UPS are my PC and one monitor (23" ips).
Thanks again guys!
cg

Sometimes if the UPS is faulty it can cause that, and sometimes if it cannot handle the sudden load it will drop the load and then the machine will reboot. I had that happen with one of my UPS's, so I replaced it ASAP.
If you have any doubts, post any links to ones you are considering, with a ballpark wattage consumption (from the wall) and I'll take a look and see smile.gif
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post #8 of 18
Thread Starter 
Absolutely, and thanks! I was wondering, do they have a system where the battery is always on, or partially on? (Meaning, the system will run off of the battery, in part, while it's being charged?) Although, I don't think the logistics of something like that is really applicable.

I think you're right, this one maybe faulty. When a brownout occurs, I hear a loud click, (which I know can be normal, but the other one, that works, does not make the same sound; and they're the same unit.

cg
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post #9 of 18
Quote:
Originally Posted by exnihilo View Post

Absolutely, and thanks! I was wondering, do they have a system where the battery is always on, or partially on? (Meaning, the system will run off of the battery, in part, while it's being charged?) Although, I don't think the logistics of something like that is really applicable.
I think you're right, this one maybe faulty. When a brownout occurs, I hear a loud click, (which I know can be normal, but the other one, that works, does not make the same sound; and they're the same unit.
cg

Yes they are called an online UPS. Because I cannot be bothered typing my own explanation ( tongue.gif ), here it is from Wikipedia:
Quote:
In an online UPS, the batteries are always connected to the inverter, so that no power transfer switches are necessary. When power loss occurs, the rectifier simply drops out of the circuit and the batteries keep the power steady and unchanged. When power is restored, the rectifier resumes carrying most of the load and begins charging the batteries, though the charging current may be limited to prevent the high-power rectifier from overheating the batteries and boiling off the electrolyte.

Because of the way they work and the higher quality of inverter and rectifiers, these UPS are super expensive.

As for the clicking sounds, if the UPS is line interactive this is the sound of the multi tap autotransforner. It is hard to comment on whether the volume of the clicking is normal, but. Although if it is dropping the load it is likely faulty.... either that or system is asking for more than the UPS can instantly supply.
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Intel® Core™ i5 2557M Processor ASUS Zenbook UX31E Integrated Intel® HD Graphics 3000  4GB DDR3 1333 MHz SDRAM 
Hard DriveOS
128GB SSD Debian "Jessie" 
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Ol' Sandy
(30 items)
 
"Zeus"
(13 items)
 
Debian Zen
(6 items)
 
CPUMotherboardGraphicsRAM
Intel Core i5 2500K (4.5ghz @ 1.320v) Gigabyte Z68X-UD3R-B3 MSI R7970 Lightning Corsair 16GB (4x4GB) 
Hard DriveHard DriveHard DriveHard Drive
Plextor PX-256M5S 256GB Samsung EVO 1TB Hitachi HDS721010CLA332 Hitachi HDS723020BLA642 
Hard DriveHard DriveHard DriveOptical Drive
Hitachi HDS723020BLA642 Hitachi HUA722010CLA330 WDC WD10EARS-00Z5B1 TSSTcorp CDDVDW SH-S223B 
CoolingCoolingOSMonitor
Phanteks PH-TC14PE with TY-140's Lamptron FCv5 (x2) Windows 8 Pro 64-bit Dell U2412M 
MonitorMonitorMonitorKeyboard
Dell U2412M Dell U2212HM Dell U2713HM Topre Realforce 87UB | Ducky DK9087 G2 Pro 
PowerCaseMouseMouse Pad
Corsair AX-750 Corsair Obsidian 650D Logitech G700 XTRAC Ripper XXL 
AudioAudioAudioAudio
Westone W3 IEMs RE-272 IEMs Shure SE-215 IEMs Schiit Bifrost DAC 
AudioAudio
Schiit Asgard 2 amp HiVi Swan M50W 2.1 
CPUMotherboardGraphicsRAM
Intel Xeon E3-1320 v3 Super Micro X10SAE GeForce 6200 32GB 1333MHz 
Hard DriveOptical DriveOSPower
4x WD RE4 1TB on-host (Adaptec 6805E RAID 10) 4x WD Red 1TB on-host (Adaptec 6805E RAID 10) Windows Server 2012 R2 x64 SeaSonic SS-400FL2 
Case
Fractal Define R3 
CPUMotherboardGraphicsRAM
Intel® Core™ i5 2557M Processor ASUS Zenbook UX31E Integrated Intel® HD Graphics 3000  4GB DDR3 1333 MHz SDRAM 
Hard DriveOS
128GB SSD Debian "Jessie" 
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post #10 of 18
Good surge protector and this....

TRIPP LITE LC1800 Line Conditioner - Automatic Voltage Regulation with Surge Protection
http://www.newegg.com/Product/Product.aspx?Item=N82E16842111276

i had UPS and because the line had bad signal the voltage would drop and raise a lot and cause the UPS to click a lot and it wears the batteries down faster. Installed Line Conditioner and 100% problem solved.
    
CPUMotherboardGraphicsRAM
2600k, 2700k, 34 lga 775 chippers z68x-ud4, MIVE, Commando's, and crap FX5500, 6970, 6670, 4890, and junk Team D9's/ Ballistix D9's, Muskin Hypers !! 
Hard DriveOptical DriveOSMonitor
C300 / WD 500 / 640 Caviar Blue Asus Lightscribe / LG Win7/Vista/XP/Server 08 EE Acer P235H 1920 X 1080 HD 
KeyboardPowerCaseMouse
Logitech Ill. Mushkin 1200 Joule CM690 II Adv/Tech Bench DiamondBack 3G 
Mouse Pad
eXactMat 
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CPUMotherboardGraphicsRAM
2600k, 2700k, 34 lga 775 chippers z68x-ud4, MIVE, Commando's, and crap FX5500, 6970, 6670, 4890, and junk Team D9's/ Ballistix D9's, Muskin Hypers !! 
Hard DriveOptical DriveOSMonitor
C300 / WD 500 / 640 Caviar Blue Asus Lightscribe / LG Win7/Vista/XP/Server 08 EE Acer P235H 1920 X 1080 HD 
KeyboardPowerCaseMouse
Logitech Ill. Mushkin 1200 Joule CM690 II Adv/Tech Bench DiamondBack 3G 
Mouse Pad
eXactMat 
  hide details  
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