Question Urgent help needed with misbehaving UPS ?

[Kirito-kun]

My specs
Motherboard: H61
CPU: i5-3570
GPU: RTX 2060
RAM: 2 x 4GB
PSU: 550W Bronze+ CM
2 x SSD, 2 x HDD
RGB Keyboard and Mouse
Bluetooth and WIFI Adapter
Case Fans: 3 x ARGB and 1 x non-RGB
Monitor: Acer 22 inch IPS

I have a inverter at my place but due to frequent power cuts in my area, I bought an
ENTER UPS E-U740 LINE UPS (Output Power Wattage: 360 W) from a local shop to protect my GPU for that 1 minute when the electricity cuts off and switches to Inverter, it provides good backup during normal usage (when GPU is not in use), but whenever I am playing games COD series, GTA V, the moment the electricity goes off my pc crashes and then in next second the inverter kicks in, it restarts.

I thought there was something wrong with my UPS so I took my PC and UPS to the shop, but there it managed to play GTA V, Genshin Impact and COD:MW Remastered for total 4-5 minutes before discharging. I brought it back home, separated Monitor connection directly to board and tested same thing (switched off power connection during Genshin and it survived), I thought it solved the problem but again just 30 mins back , my friend was playing COD:MW and electricity goes off and again PC goes off. This is so much frustrating!!! Please need urgent help!!!

Another point to Note: When I am cutting off the electricity first and starting PC on UPS directly, I am able to run few games (Genshin , COD:MW, GTA V) for few minutes, but whenever I am playing on electricity through UPS, the moment electricity goes off the PC shuts down, the UPS is not providing even a one second backup.

 

[Ralston18]

A UPS is intended to provide the required amount of power to keep the supported system running long enough for the end user to initiate a proper shutdown.

Not to continue playing which may be moot because power outages usually cause internet connectivity to be lost.

Also the U740 does not appear capable of providing the power (and thus time) needed for a normal shutdown.

Update your post to include full system hardware specs and OS information.

What other devices are also connected to the UPS? l would expect the PC and at least one monitor.

Anything else?

 

[wyliec2]

If you have expected occurrences of 1 minute outages, a properly sized UPS is a reasonable solution to keep essential components operational. This includes:
- PC components powered from PSU
- Monitor(s)
- Network switch/router
- ISP WAN connection (ie. modem)

UPS systems are typically rated for number of minutes operation at full load (360 watts in your case) and minutes at half load (180 watts).

If the symptoms you describe are consistent and repeatable, then it appears that when actively gaming, your equipment is exceeding the UPS capacity. 360 watts is a relatively small UPS.

 

[Kirito-kun]

A UPS is intended to provide the required amount of power to keep the supported system running long enough for the end user to initiate a proper shutdown.

Not to continue playing which may be moot because power outages usually cause internet connectivity to be lost.

Also the U740 does not appear capable of providing the power (and thus time) needed for a normal shutdown.

Update your post to include full system hardware specs and OS information.

What other devices are also connected to the UPS? l would expect the PC and at least one monitor.

Anything else?

All Specs:
Windows 10
CPU: i5-3570
GPU: RTX 2060
RAM: 2 x 4GB DDR3
PSU: Cooler Master 550W Bronze+
Storage: 2 x SSD, 2 x HDD
Peripherals: RGB Keyboard and Mouse
Other USB Devices: Bluetooth and WIFI Adapter
Case Fans: 3 x ARGB and 1 x non-RGB
Monitor: Acer 22 inch IPS

I understand sir UPS is not for continuosly playing games but at least it should be provide for 2-3 mins backup to give me time to shut down PC.

Earlier I have connected my PC and Monitor to UPS but now I shifted my Monitor directly to Power socket, for now only PC is connected to the UPS.

Most weird part is PC survives when I start it on UPS only, but whenever I start PC while there is Electricity with UPS also ON and the moment the electricity goes off my PC also shuts down!

 

[Ralston18]

My thought is that, at first, the UPS may have marginally supported the requirements.

And provided the enough time ( 2-3) minutes for you to properly shutdown.

However, power problems and wear and tear diminished the UPS's capabilities. All the more so if the UPS is defective or of lower quality. Especially the battery.

End result being that the UPS works for seconds, if at all, and the PC shutsdown.

Very likely the logs are full of improperly shutdown errors.

The UPS may have lasted 4 - 5 minutes at the store but only because power there was sufficient there to fully recharge without any related voltage problems.

And the PSU could have been degraded or damaged as well.

Is it possible to have a qualified electrician check your power system? Ensure at all is correct and safe.

Plus monitor the incoming voltage for sags, spikes, and frequency.

= = = =

Here is a handy device that can help monitor electrical usage.

Kill a Watt Meter

It does not fix anything. It only provides measurements.

You may need to find and purchase a similar device designed for your areas' electrical grid.

 

[BFG-9000]

As I pointed out in your other thread, a 740VA UPS from a reputable manufacturer would actually be the correct size for your system (at least without a 200w OLED monitor)--since at 0.7 power factor that's 518w and at 0.6 it's 444w.

Unfortunately 740 is just the model number for your UPS and it is variably speced at 650VA/360w and/or 600VA/300w by retailers, sometimes both in the same ad. Given they are clearly lying about its 100% efficiency spec, you can't even trust those numbers, which are already inadequate for your system when gaming.

Technically, you can only get half the energy out of a lead-acid battery if you want to ever be able to recharge it again, and most 12v UPSes shut off at 10v anyway so you can't get all 7Ah out. So nominal 12v x 3.5Ah is 42 watt-hours. And claimed runtime is 10-15min which is 2-3x as long as most brand-name UPSes under maximum load.
At the claimed 100% efficiency, this can only theoretically supply enough energy to power 168w for 15min, or 252w for 10min.
As you can see, the claims just don't add up.