Can I use a APC 1100VA UPS for a 750W PSU

[W@Rr!0R]

Currently im using 550 Wattt SMPS . My spec are

CPU : Amd Ryzen 5 3600XT

RAM : 16 GB DDR 4 ( * GB each 2 slot in mother board )

GPU : GTX 1660 TI

Storage

HDD 500 GB and 500 GB and 1 TB

SSD 222 GB

M.2 112 GB

Duel Monitor I have .
Monitor Acer 1920X1080 P

DELL 1600X900.

with in 1 month im buying RTX 3070 Zotac . So i am thinking to buy 650 WATT Gold SMPS or 700 WATT Gold Smps . As i can see my UPS maximum power outage is 660 WATT . If i buy 700 WATT Smps will there be any issue or not ? Please help me

[_I_]

ups is not to keep pc running during power outage
its meant to give the pc enough time to shutdown safely at the start of the outage

windows if running on the ssd, should only take a few seconds to safely shut down, when given the command from the ups

[W@Rr!0R]

Originally posted by _I_:

ups is not to keep pc running during power outage
its meant to give the pc enough time to shutdown safely at the start of the outage

windows if running on the ssd, should only take a few seconds to safely shut down, when given the command from the ups

700 WATT will be ok ?

[Gwarsbane]

Your power supply is not running full out all the time. That would actually be bad for your system to run a 750watt power supply at 750watts all the time. Also unless the power is out, it doesn't draw from the battery. When the power goes out, there is usually a click with it switching over to the battery.

I will explain my personal system.

I have a 1500VA APC UPS, 900watt. My PC has a 750watt power supply, AMD 5600g, RX580 gpu. I have my PC, 24inch monitor, Router, 250 RMS watt (500watt) speakers, 10watt LED light all plugged in. I used to run more but have since bought a second 1500VA and moved the ThrustMaster t248 race wheel, TV, Cable box, phone & clock to the new one just to spread things out more and give myself some time.

Right now while not gaming, with 7 Firefox windows each with 10+ tabs open, 2 idle games running, Office, Steam and a few other things running all pulling around 160ish watts being used.

If the power went off right now, I would have around 35 minutes to shut down everything. When I ran it all off one UPS, it was closer to 20 or 23 minutes (been a while)

But my system never even came close to pushing my power supply to the max rating.


I did run an older system one time on a 350VA APC UPS. I was running this same power supply (its over 15 years old now I think) and when the power went out, I had around 4 to 5 minutes to shut down.



So what am I saying, depending on what your system is actually running at full out, or even just idle, an 1100VA system should be fine. It will at least give you 4 to 5 minutes to shut everything down, but as you stop gaming, power draw will go down, and give you a bit longer to shut down.

But the closer to that 660 watts of out put you are at, the lower amount of time you will have to stop playing and shut your system down.




Other things you have to consider is the self testing the UPS does from time to time. It will disconnect itself from power to test the battery and that can take 10 to 30 seconds I think (never timed it, don't really pay attention to it) which means your system is sucking up all that power in the battery.

Personally I would never go with anything less then a 1500VA UPS from here on out. I would love even more one with a SINE wave, which is better for electronics, but its also like double the price of what I paid for my UPS'.

The more time you have to shut down the better. Because I have 30+ minutes to shutdown, I always wait 5 minutes to see if the power is coming back on. If not, then I shut down. With a smaller UPS thats closer to the wattage it can put out, that wait time is much smaller.



I hope all this info can help you make a choice.

[W@Rr!0R]

Originally posted by Gwarsbane:

Your power supply is not running full out all the time. That would actually be bad for your system to run a 750watt power supply at 750watts all the time. Also unless the power is out, it doesn't draw from the battery. When the power goes out, there is usually a click with it switching over to the battery.

I will explain my personal system.

I have a 1500VA APC UPS, 900watt. My PC has a 750watt power supply, AMD 5600g, RX580 gpu. I have my PC, 24inch monitor, Router, 250 RMS watt (500watt) speakers, 10watt LED light all plugged in. I used to run more but have since bought a second 1500VA and moved the ThrustMaster t248 race wheel, TV, Cable box, phone & clock to the new one just to spread things out more and give myself some time.

Right now while not gaming, with 7 Firefox windows each with 10+ tabs open, 2 idle games running, Office, Steam and a few other things running all pulling around 160ish watts being used.

If the power went off right now, I would have around 35 minutes to shut down everything. When I ran it all off one UPS, it was closer to 20 or 23 minutes (been a while)

But my system never even came close to pushing my power supply to the max rating.


I did run an older system one time on a 350VA APC UPS. I was running this same power supply (its over 15 years old now I think) and when the power went out, I had around 4 to 5 minutes to shut down.



So what am I saying, depending on what your system is actually running at full out, or even just idle, an 1100VA system should be fine. It will at least give you 4 to 5 minutes to shut everything down, but as you stop gaming, power draw will go down, and give you a bit longer to shut down.

But the closer to that 660 watts of out put you are at, the lower amount of time you will have to stop playing and shut your system down.




Other things you have to consider is the self testing the UPS does from time to time. It will disconnect itself from power to test the battery and that can take 10 to 30 seconds I think (never timed it, don't really pay attention to it) which means your system is sucking up all that power in the battery.

Personally I would never go with anything less then a 1500VA UPS from here on out. I would love even more one with a SINE wave, which is better for electronics, but its also like double the price of what I paid for my UPS'.

The more time you have to shut down the better. Because I have 30+ minutes to shutdown, I always wait 5 minutes to see if the power is coming back on. If not, then I shut down. With a smaller UPS thats closer to the wattage it can put out, that wait time is much smaller.



I hope all this info can help you make a choice.

I said 700 WATT not 750 WATT man ..

[_I_]

psu wattage makes no difference, 5000w or 600w
psu only draws how much the system needs

if the pc is idle when power is lost, the pc will turn off way before the ups batteries run low
thats the point of the ups

if you are playing a game or doing something demanding on the system needing more power, 1000-1100va ups should still be enough to end game and shutdown safely before its battery runs out.


800va @ 400w load = ~2min runtime

get a kill-a-watt meter to see what the system actually draws
the psu should be rated about double its max draw, to put it in the best effeminacy range

and sine vs square wave makes no difference for switching power supplies
only direct ac coil transformers need sine wave to be more efficient

[Gwarsbane]

Originally posted by W@Rr!0R:

Originally posted by Gwarsbane:

Your power supply is not running full out all the time. That would actually be bad for your system to run a 750watt power supply at 750watts all the time. Also unless the power is out, it doesn't draw from the battery. When the power goes out, there is usually a click with it switching over to the battery.

I will explain my personal system.

I have a 1500VA APC UPS, 900watt. My PC has a 750watt power supply, AMD 5600g, RX580 gpu. I have my PC, 24inch monitor, Router, 250 RMS watt (500watt) speakers, 10watt LED light all plugged in. I used to run more but have since bought a second 1500VA and moved the ThrustMaster t248 race wheel, TV, Cable box, phone & clock to the new one just to spread things out more and give myself some time.

Right now while not gaming, with 7 Firefox windows each with 10+ tabs open, 2 idle games running, Office, Steam and a few other things running all pulling around 160ish watts being used.

If the power went off right now, I would have around 35 minutes to shut down everything. When I ran it all off one UPS, it was closer to 20 or 23 minutes (been a while)

But my system never even came close to pushing my power supply to the max rating.


I did run an older system one time on a 350VA APC UPS. I was running this same power supply (its over 15 years old now I think) and when the power went out, I had around 4 to 5 minutes to shut down.



So what am I saying, depending on what your system is actually running at full out, or even just idle, an 1100VA system should be fine. It will at least give you 4 to 5 minutes to shut everything down, but as you stop gaming, power draw will go down, and give you a bit longer to shut down.

But the closer to that 660 watts of out put you are at, the lower amount of time you will have to stop playing and shut your system down.




Other things you have to consider is the self testing the UPS does from time to time. It will disconnect itself from power to test the battery and that can take 10 to 30 seconds I think (never timed it, don't really pay attention to it) which means your system is sucking up all that power in the battery.

Personally I would never go with anything less then a 1500VA UPS from here on out. I would love even more one with a SINE wave, which is better for electronics, but its also like double the price of what I paid for my UPS'.

The more time you have to shut down the better. Because I have 30+ minutes to shutdown, I always wait 5 minutes to see if the power is coming back on. If not, then I shut down. With a smaller UPS thats closer to the wattage it can put out, that wait time is much smaller.



I hope all this info can help you make a choice.

I said 700 WATT not 750 WATT man ..

So out of all that I left to try to help you with your decision, you seemed to ignore everything except that I hit 5 instead of 0....

What I said still stands for 700watt or 750watt... The closer you are to going over the the over all wattage of the UPS the less time you will have to actually shut things down so the bigger the UPS you can go, the more time you will have.

You can have a system that uses more power then the UPS has, but at best it will be good for quick brownouts where the power dips down, or goes off for a second or 2, but for any longer then that you are taking a chance.

Spend the money for a bigger UPS, you will not regret it if the power goes out while you are gaming. You will have more time to save your system from a hard shut down.

Anyway I'm done here, do what you want with the information left for you.

[W@Rr!0R]

Originally posted by Gwarsbane:

Originally posted by W@Rr!0R:

I said 700 WATT not 750 WATT man ..

So out of all that I left to try to help you with your decision, you seemed to ignore everything except that I hit 5 instead of 0....

What I said still stands for 700watt or 750watt... The closer you are to going over the the over all wattage of the UPS the less time you will have to actually shut things down so the bigger the UPS you can go, the more time you will have.

You can have a system that uses more power then the UPS has, but at best it will be good for quick brownouts where the power dips down, or goes off for a second or 2, but for any longer then that you are taking a chance.

Spend the money for a bigger UPS, you will not regret it if the power goes out while you are gaming. You will have more time to save your system from a hard shut down.

Anyway I'm done here, do what you want with the information left for you.

THXN for the help man appreciated

[_I_]

again bigger psu alone will make little difference
slightly more efficient will go slightly longer on ups battery, thats it

if you want to keep gaming on the pc for hours on the ups, you will need to power, pc, monitor, modem, router and maybe other gear too

but they are not really designed to do that
they have usb/serial port to talk to the pc/pcs and tell them to turn off safely so the ups can power them while they turn off

get a whole home generator that powers your house during an outage

[W@Rr!0R]

Originally posted by _I_:

again bigger psu alone will make little difference
slightly more efficient will go slightly longer on ups battery, thats it

if you want to keep gaming on the pc for hours on the ups, you will need to power, pc, monitor, modem, router and maybe other gear too

but they are not really designed to do that
they have usb/serial port to talk to the pc/pcs and tell them to turn off safely so the ups can power them while they turn off

get a whole home generator that powers your house during an outage

Here in my city Less outage just using UPS for safety . So i will go for 700 Watt SMPS

[_I_]

Originally posted by W@Rr!0R:

Originally posted by _I_:

again bigger psu alone will make little difference
slightly more efficient will go slightly longer on ups battery, thats it

if you want to keep gaming on the pc for hours on the ups, you will need to power, pc, monitor, modem, router and maybe other gear too

but they are not really designed to do that
they have usb/serial port to talk to the pc/pcs and tell them to turn off safely so the ups can power them while they turn off

get a whole home generator that powers your house during an outage

Here in my city Less outage just using UPS for safety . So i will go for 700 Watt SMPS

if you have the ups, just changing the psu will have no effect on its runtime

[W@Rr!0R]

Originally posted by _I_:

Originally posted by W@Rr!0R:

Here in my city Less outage just using UPS for safety . So i will go for 700 Watt SMPS

if you have the ups, just changing the psu will have no effect on its runtime

Yes i know .. I have to change to SMPS for my new GPU RTX 3070 that im getting next month .. I have enough runtime to shutdown my PC