I have a still-brand new Intex 650VA UPS (bought last February). A power outage occured last night and it got overloaded and was not able to provide emergency power for me to shutdown my PC properly.
My system specs are:
i5-4570 Haswell, GTX 760, 1x SSD, 9 LED case fans, powered by a Corsair GS700.
My UPS's specs are:
Input voltage: 140-350VAC
Frequency: 47-53hz
Voltage on Mains: 200-250VAC
Voltage on Battery: 220VAC 8% 50.2Hz
Battery: 12V 7.2Ah *1
When power resumed, I tried testing it again. Since my UPS is still fully charged, I restarted my PC and pulled the plug (risking damage to my system, all for the sake of checking it), and the emergency power still did not take effect, thus overloading the UPS and shut down immediately.
But when I removed the CPU connection, and left the monitor plugged to the UPS, the UPS worked normally (beeped every 2 to 3 seconds as opposed to a straight continuous beep of an overloaded UPS), and provided power to my monitor.
Learning this, the only conclusion I have is as of the moment is maybe because my 700W power supply is drawing too much power from my 650VA UPS. I've read somewhere that a 650VA UPS is ideal for 360 to 400W of power consumption. Is this true? From what I understand, My UPS should work, because I'm not running at maximum load most of the time. My rough estimate is I don't go over 200W when idle, and not more than 400W when in full load.
Also, I've read before that a calculation of "1.6 x PSU Wattage = Recommended VA" should be considered. If this is also true, that means the recommended UPS for my system is at least at 1120VA, because 1.6 x 700W = 1120W.
My system specs are:
i5-4570 Haswell, GTX 760, 1x SSD, 9 LED case fans, powered by a Corsair GS700.
My UPS's specs are:
Input voltage: 140-350VAC
Frequency: 47-53hz
Voltage on Mains: 200-250VAC
Voltage on Battery: 220VAC 8% 50.2Hz
Battery: 12V 7.2Ah *1
When power resumed, I tried testing it again. Since my UPS is still fully charged, I restarted my PC and pulled the plug (risking damage to my system, all for the sake of checking it), and the emergency power still did not take effect, thus overloading the UPS and shut down immediately.
But when I removed the CPU connection, and left the monitor plugged to the UPS, the UPS worked normally (beeped every 2 to 3 seconds as opposed to a straight continuous beep of an overloaded UPS), and provided power to my monitor.
Learning this, the only conclusion I have is as of the moment is maybe because my 700W power supply is drawing too much power from my 650VA UPS. I've read somewhere that a 650VA UPS is ideal for 360 to 400W of power consumption. Is this true? From what I understand, My UPS should work, because I'm not running at maximum load most of the time. My rough estimate is I don't go over 200W when idle, and not more than 400W when in full load.
Also, I've read before that a calculation of "1.6 x PSU Wattage = Recommended VA" should be considered. If this is also true, that means the recommended UPS for my system is at least at 1120VA, because 1.6 x 700W = 1120W.