PSU required for gtx 1070ti 8gb and gtx 1070 8gb together

[shivgre]

I am currently running gigabyte g1 gtx 1070ti 8GB and Gigabyte gtx 1070 on my corsair VS 550 watt PSU. I have been monitoring both GPU and my PC and so far haven't faced any issues. I am mining ethereum with claymore from both cards and I also played games and so far all good.

But will this low powered PSU I have is enough or will it damage my GPU's over time? What PSU should I get if I really had to upgrade?.

My PC specs :
Gskills 8GB x 2 = 16 GB RAM
8700k I7 CPU
Deepcool kendoman 5 fans Cabinet
1 WD 1TB blue HDD
1 WD 2TB blue HDD
1 500 GB external usb seagate HDD
1 250 GB SSD
1 old 7200 RPM 160 GB seagate HDD
Corsair k92 gaming keyboard
razer mamba tournament edition gaming mouse
Cooler master Hyper 212 EVO CPU cooler

UPDATE:
I just noticed that my APC Back-UPS 1100 UPS is giving red blinking light along with a constant beep whenever I play games along with mining software running in background. Does that mean my 550 watt PSU is consuming way more wattage that my UPS is getting overloaded? If yes then I will buy a 850 watt RMX corsair PSU, but will it not overload that UPS?

 

[Lutfij]

Combined you should be looking at 1050W, keeping a little extra to act as a buffer. When you're talking of mining, it takes a toll on the system and the PSU will need a little more than 1100W at its disposal.

 

[TJ Hooker]

@Lutfij how did you get 1050W?? The CPU/GPUs should only draw like 550W under max combined load at stock settings. And eth mining poses almost no load to the CPU, and only moderate load to the GPU (assuming they've been appropriately underclocked/undervolted and you're not dual mining).

I have an RX 580 and two RX 570s, dual mining eth + pascal, and a mildly overclocked 6700K mining monero, and I'm pulling 580W at the wall.

 

[Lucky_SLS]

Yeah, a 750w would be more than enough. If you disable a card while gaming, a 650w would also do.

Try this https://pcpartpicker.com/product/gWbwrH/seasonic-focus-gold-750w-80-gold-certified-semi-modular-atx-power-supply-ssr-750fm

 

[shivgre]

@Lutfij how did you get 1050W?? The CPU/GPUs should only draw like 550W under max combined load at stock settings. And eth mining poses almost no load to the CPU, and only moderate load to the GPU (assuming they've been appropriately underclocked/undervolted and you're not dual mining).

I have an RX 580 and two RX 570s, dual mining eth + pascal, and a mildly overclocked 6700K mining monero, and I'm pulling 580W at the wall.

So does that mean I can keep using my 550 watt corsiar VS550 PSU as I am not overclocking GPU as well as only mining Ethereum. A good new PSU would cost me $150 which I don't have right now. I already spent $1300 ~ on the 2 GPU I purchased.

If I have to upgrade PSU which brand/model would you recommend. Also is CPU mining profitable(I have 8700K I7 CPU). If yes which coin should I mine with CPU.

 

[TJ Hooker]

So does that mean I can keep using my 550 watt corsiar VS550 PSU as I am not overclocking GPU as well as only mining Ethereum. A good new PSU would cost me $150 which I don't have right now. I already spent $1300 ~ on the 2 GPU I purchased.

Eh, I don't know if that's the best idea. That "550W" PSU is really only good for ~500W (based on rated current on the 12V rail), and overall isn't a high quality unit. On the other hand, I can't see your build drawing more than 400W, maybe 450W, while eth mining (probably less If you've undervolted/underclocked your cards, which can significantly improve efficiency for eth mining). Gaming should be similar, given that CPU load may be higher but only one card will in use. However, given that your PSU isn't a high quality unit, I would guess you risk premature failure by running it at those kind of loads for an extended period of time.

Gaming and mining simultaneously is more risky, IMO. I also wouldn't do any CPU mining while GPU mining. Monero is the most profitable thing to mine with a CPU right now, but it's still a fair bit less profitable than GPU mining so you're not losing too much profit by not CPU mining.

 

[shivgre]

So does that mean I can keep using my 550 watt corsiar VS550 PSU as I am not overclocking GPU as well as only mining Ethereum. A good new PSU would cost me $150 which I don't have right now. I already spent $1300 ~ on the 2 GPU I purchased.

Eh, I don't know if that's the best idea. That "550W" PSU is really only good for ~500W (based on rated current on the 12V rail), and overall isn't a high quality unit. On the other hand, I can't see your build drawing more than 400W, maybe 450W, while eth mining (probably less If you've undervolted/underclocked your cards, which can significantly improve efficiency for eth mining). Gaming should be similar, given that CPU load may be higher but only one card will in use. However, given that your PSU isn't a high quality unit, I would guess you risk premature failure by running it at those kind of loads for an extended period of time.

Gaming and mining simultaneously is more risky, IMO. I also wouldn't do any CPU mining while GPU mining. Monero is the most profitable thing to mine with a CPU right now, but it's still a fair bit less profitable than GPU mining so you're not losing too much profit by not CPU mining.

UPDATE:
I just noticed that my APC Back-UPS 1100 UPS is giving red blinking light along with a constant beep whenever I play games along with mining software running in background. Does that mean my 550 watt PSU is consuming way more wattage that my UPS is getting overloaded? If yes then I will buy a 850 watt RMX corsair PSU, but will it not overload that UPS?

I have already ordered RMx 850 watt 80+ gold rated corsair PSU as I don't want my GPU's/CPU getting damaged over time as my UPS started warning beep with red light due to overload when I play games while mining with both card(the primary card on which I play game I have set up on low intensity mode -li 2 in claymore miner so that I can play games).

 

[TJ Hooker]

Have you read the UPS manual to see what the blinking lights/beeping means?

A power supply only draws as much power as it needs, so that 850W PSU isn't necessarily going to draw 850W. But your UPS is only rated for 660W, so yes you may run into issues with overloading your UPS (if you aren't already).

 

[shivgre]

Have you read the UPS manual to see what the blinking lights/beeping means?

A power supply only draws as much power as it needs, so that 850W PSU isn't necessarily going to draw 850W. But your UPS is only rated for 660W, so yes you may run into issues with overloading your UPS (if you aren't already).

This is the UPS I have : https://www.amazon.in/APC-BX1100C-1100VA-230V-Back/dp/B01ELNPG2I?tag=googinhydr18418-21&tag=googinkenshoo-21&ascsubtag=a245884a-91fb-4b48-94b6-a084e67dfad5

Its 1100 VA and the manual says red blinking light with long beeps means overload on UPS.

 

[TJ Hooker]

Ok, so there's your answer, you're overloading it. You're probably loading your PSU to the max (~550W) while gaming and mining. That PSU has 80+ efficiency rating (82% efficient at 100% with 230V input), so it would be drawing around 550/0.82 = 670W. Your UPS is only rated for 660W.
http://www.apc.com/shop/in/en/products/APC-Back-UPS-1100VA-230V-without-auto-shutdown-software-India/P-BX1100C-IN

Hence me saying that gaming and mining at the same time is risky.

 

[shivgre]

Ok, so there's your answer, you're overloading it. You're probably loading your PSU to the max (~550W) while gaming and mining. That PSU has 80+ efficiency rating (82% efficient at 100% with 230V input), so it would be drawing around 550/0.82 = 670W. Your UPS is only rated for 660W.
http://www.apc.com/shop/in/en/products/APC-Back-UPS-1100VA-230V-without-auto-shutdown-software-India/P-BX1100C-IN

Hence me saying that gaming and mining at the same time is risky.

So will buying a new RMx corsair 850 watt PSU makes a difference or it will still overload?

https://www.amazon.in/gp/product/B015Q7F4WA/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

Also is this a good PSU, I have already ordered but can cancel it if its not a good PSU? So far VS550 corsair has withstood 3+ years so I think corsair PSU are good.

 

[TJ Hooker]

The new PSU will be more efficient, which will help a bit (reduce total power draw), but overall you'll probably still be overloading or close to overloading your UPS.

Yes, the RMx 850 is a good PSU.

 

[shivgre]

The new PSU will be more efficient, which will help a bit (reduce total power draw), but overall you'll probably still be overloading or close to overloading your UPS.

Yes, the RMx 850 is a good PSU.

If I have to buy a new UPS will this APC 1500 VA/865 watt be good enough : https://www.amazon.in/gp/product/B00B2LA7JK/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A13N7CZJGN3JL1

 

[TJ Hooker]

I have no idea about the quality of that unit in particular, but based on the specs yes that UPS will be sufficient as it is rated for 865W.