UPS for my RM750i

[0v3rl0rd]

Hi

So, my question is (hopefully) simple: I'm looking for a UPS for my PC, which consists of following:
MBO: ASRock X370 Killer SLI
CPU: Ryzen 7 1700
GPU: Gigabyte GTX 1050TI Windforce 2 OC
SSD 1: Samsung 960 EVO
SSD 2: Samsung 850 EVO
(and most importantly for this topic)
PSU: Corsair RM750i
Other (permanently connected): K&M via one unifying receiver, USB WiFi dongle, 3x140mm fans, LED strip.
From time to time: few USB HDDs (2,5").

On many places online I have read that PSUs that have active PFC are having troubles with UPS which has simulated sine wave.

I was wondering if my PSU will work with any of the below UPS:
1) APC BE700G-GR
2) APC BX950U-GR
3) APC BX1400U-GR
4) CyberPower BR1000ELCD
5) CyberPower UT1500E

Note: all of the above have simulated sine wave output.

If anyone has tried a UPS with simulated sine wave output with the RM750i - please share Your info.
I have a few pure sine wave options (CyberPower CP900EPFCLCD, CP1300EPFCLCD, CP1500EPFCLCD), but those are DOUBLE/TRIPLE the price :/

What I need the UPS for: here where I live, often there are short blackouts - few seconds. Sometimes (about once or twice a month) the blackouts last for half an hour max. So, basically, I need a UPS to "survive" over those few-seconds-blackouts, and for those longer blackouts to be able to safely shutdown the PC.
I don't need to keep it running on UPS for more than 5 minutes.

Also, I already have the APC PM6U-GR surge protection device, but that is only good until a blackout occurs unfortunately.

Any help appreciated

 

[Aeacus]

When you plug your active PFC PSU to the simulated sine wave UPS then in most times, the UPS will fail to switch over to a battery operation. Or it will make plenty of loud beeps and displays either an overload or unknown error, resulting UPS to shut itself off.

I'd go with true/pure sine wave UPS from the start. Of course, you can cheap out and go with simulated sine wave UPS too but expect to face some problems with it.
CP900EPFCLCD is more than enough for your build, especially when you don't expect more than 5 mins of runtime out of your UPS.

Oh, i got 2x CP1300EPFCLCD in use, one for my Skylake build and another for my Haswell build. Full specs with pics in my sig. My UPS can keep my PC running for about 35 mins before the battery is empty (19 mins on 100% PC load).