Suggest me safe power supply for 3 gtx 1070ti 24/7mining

[Honey]

Hi,
Adding 3 more gtx 1070 gpus but doubt on power supply,
Please suggest safe and good price,
Current budget 160$ according to india market.
But if its difficult in that price then would try to extend budget.
Edit. Psu having more pcie 8pin wires would more preferable...
Edit. Tried to search on Google hows
Corsair tx750m and cooler master v750?

 

[silkstone]

I recently got a FSP 850W Hydro G for a similar price. I'd highly recommend it and it has enough PCIe wires for 3 GPUs

 

[Honey]

I recently got a FSP 850W Hydro G for a similar price. I'd highly recommend it and it has enough PCIe wires for 3 GPUs

It costs 220+ in our area..

 

[qubit]

Those cards are gonna be working flat out and therefore pulling quite a lot of power. I would go with a top brand like Seasonic of not less than 1KW for a decent safety margin.

Just check out the models available in your region.

Make sure you have proper cooling, too.

 

[trog100]

i am running 8 x 1070 cards at around 1kw from the wall.. call it 120 watts per card..

overclcock the memory mine is at +600.. set the max power limit 75%.. this limits the boost clock (power usage) without lowering the hash rate..

contrary to what most folks would think mining 1070 cards are not running flat out.. far from it..

a good quality 500 watt psu would provide more than enough power for 3 x 1070 cards..

trog

 

[Honey]

i am running 8 x 1070 cards at around 1kw from the wall.. call it 120 watts per card..

overclcock the memory mine is at +600.. set the max power limit 75%.. this limits the boost clock without lowering the hash rate..

contrary to what most folks would think mining 1070 cards are not running flat out.. far from it..

a 500 watt psu would provide more than enough power for 3 x 1070 cards..

trog

at our area only corsair and coolermaster available right now
corsair tx750m series and coolermaster rm750x
also available platinum but its costly about more than 240+$
can you help me to find out in amazon.in ? if 500w is enough which you suggest? if any company psu rating 80plus should i buy with closed eye?

 

[64K]

Since you are going to be running these cards all day every day then efficiency comes into play. Efficiency maxes at around 50% use of the rated wattage of a PSU. Possibly that may even be more important for you depending on what you pay per kWh where you live in India.

 

[hat]

Each 1070 (not sure about ti) is designed to pull 150w. That's 450w just from the cards. Throw in another 300w for the rest of your system and safety margin and you're looking at a 750w unit.

Of course you can also set the cards to run at a lower power target... I set mine to 80%/so that's 120w per card saving me 60w across 2 cards. Mining can and will load those cards to their power limit.

 

[Honey]

Each 1070 (not sure about ti) is designed to pull 150w. That's 450w just from the cards. Throw in another 300w for the rest of your system and safety margin and you're looking at a 750w unit.

Of course you can also set the cards to run at a lower power target... I set mine to 80%/so that's 120w per card saving me 60w across 2 cards. Mining can and will load those cards to their power limit.

Yea right my 2 msi gtx 1070 running at 63 power limit and 3rd asus one at 80,
But im still confused about gpu, right now at my local shop, corsair tx750m corsair rm650x , cooler master gm750w ,corsair cx750, cooler master v750 are available in stock which you prefer from that list?

 

[silkstone]

I'd get a Corsair over coolermaster every day of the week. You might want to see if http://www.jonnyguru.com/ has reviews of the ones you are looking at.

 

[qubit]

i am running 8 x 1070 cards at around 1kw from the wall.. call it 120 watts per card..

overclcock the memory mine is at +600.. set the max power limit 75%.. this limits the boost clock (power usage) without lowering the hash rate..

contrary to what most folks would think mining 1070 cards are not running flat out.. far from it..

a good quality 500 watt psu would provide more than enough power for 3 x 1070 cards..

trog

Going with your figures, thats 360W for the cards alone. There's still the CPU, mobo and other components to factor in which will take it well over 400W. That's too close to the rated 500W maximum for comfort for 24/7 operation. Given the 50% efficiency argument from @64K and just having decent headroom, I maintain that 1KW is still the best option. You could probably go down to 850W quite safely though.

@Honey Shame about the lack of brands in your region. A Seasonic would have been perfect for you.

 

[hat]

Corsair tx750m, or cooler master v750, whichever is cheaper. Both units get good marks at Johnnyguru. The others are lower quality units.

 

[trog100]

Going with your figures, thats 360W for the cards alone. There's still the CPU, mobo and other components to factor in which will take it well over 400W. That's too close to the rated 500W maximum for comfort for 24/7 operation. Given the 50% efficiency argument from @64K and just having decent headroom, I maintain that 1KW is still the best option. You could probably go down to 850W quite safely though.

@Honey Shame about the lack of brands in your region. A Seasonic would have been perfect for you.

sorry but you are wrong.. the rest of the system takes very little power.. but to be on the safe side lets say a 600 watt psu would do the job fine.. no way is a 1000 watt psu needed.. as claimed by some..

the other factor is cost.. once you go over 5 or 6 hundred watts.. the psu costs rocket.. the other factor is a good quality psu is designed to actually run at its maximum claimed wattage..

dont get me wrong here i always go over the top with a psu.. but honey does live in india and puts cost as a high priority..

trog

 

[qubit]

sorry but you are wrong.. the rest of the system takes very little power.. but to be on the safe side lets say a 600 watt psu would do the job fine.. no way is a 1000 watt psu needed.. as claimed by some..

the other factor is cost.. once you go over 5 or 6 hundred watts.. the psu costs rocket.. the other factor is a good quality psu is designed to actually run at its maximum claimed wattage..

dont get me wrong here i always go over the top with a psu.. but honey does live in india and puts cost as a high priority..

trog

I'm not wrong.

 

[R-T-B]

I'm not wrong.

You are, at least for this use case.

He can get by with 600W provided his mining setup is typically configured, and the PSU able to meet its sticker rating. There is no argument that could justify the additional cost of 1kw in a profit scenario like mining.

 

[verycharbroiled]

yeah that corsair 750 will be fine for 3 1070tis and a typical mobo/cpu etc load.

one thing about folks always mentioning "just lower the power limits" yeah that works to get an underpowered psu to run within its limits.. until something happens and all your cards come up at 100% power limit. it does happen.

i load test my rigs at 100% power on the most power hungry algo i can find and let it run a day or so while checking temps (especially plugs on the cards and psu, not to mention the outlet its plugged into ) with an ir temp gun. ideally that 100% load test should still be only 80% of psu and outlet load rating. THEN i lower the power limits and sleep well knowing if something goes south and my cards come up at 100% i am still withing safe limits.

 

[Honey]

thanks to all, all helped me alot, so im going to order corsair cx750m tomorrow, if im doing wrong please alert me before tomorrow..
thanks again,
btw hows antec brand?

 

[trog100]

when i first ran my 8 x 1070 rig i just left the max power setting at 90%.. it was pulling just over 1200 watts from the wall... i ran it for three months like that..

then i experimented a bit and found that lowering the max power to 75% saved both power and heat.. this simply reduces the cards max boost speed on the core which also reduces the power used and heat generated.. this did not reduce my hash rate but it did reduce power from the wall down to 1000 watts from 1200 watts..

i still say a good 600 watt psu will do the job fine for 3 x 1070 cards mining but aint gonna argue the point any more..

1070 card are very power efficient make allowances for that simple fact.. if it takes 1000 watts to run 8 mining cards.. 3 cards is less than half that.. which to my simple brain is less than 500 watts.. actually less than 450 watts.. closer to a real 400 watts..

i am now out of this thread.. he he

trog

 

[Honey]

when i first ran my 8 x 1070 rig i just left the max power setting at 90%.. it was pulling just over 1200 watts from the wall... i ran it for three months like that..

then i experimented a bit and found that lowering the max power to 75% saved both power and heat.. this simply reduces the cards max boost speed on the core which also reduces the power used and heat generated.. this did not reduce my hash rate but it did reduce power from the wall down to 1000 watts from 1200 watts..

i still say a good 600 watt psu will do the job fine for 3 x 1070 cards mining but aint gonna argue the point any more..

1070 card are very power efficient make allowances for that simple fact..

i am now out this thread.. he he

trog

yea i wish my local shop had 600 watt, i agree you trog, as you know i believe your expert,
im trying to search at amazon for 600 or 550 80+, there would be nice if theres any..

 

[jboydgolfer]

im going to order corsair cx750m tomorrow,

are there no other choices? than Antec and Corsair CX. could you link the site of your supplier? or is it B&M only?


this is within your budget , right?

this seasonic is also nice

or save a few bucks, but still nice.

 

[EarthDog]

I'm not wrong.

You are, at least for this use case.

This.

Sweet jebus. The 750Ti is a 180W damn card... why the hell is a 1kW PSU being suggested?!!!???????????????????????????????????

700W is PLENTY to run 3 of those for mining. If the CPU is working 100% too, go 800W... and even that is accounting for the curious 'headroom' people seem to love to have for little reason except to thin out their bank account.


Leave TPU for a couple of days and this..........

 

[jboydgolfer]

This.

Sweet jebus. The 750Ti is a 180W damn card... why the hell is a 1kW PSU being suggested?!!!???????????????????????????????????

700W is PLENTY to run 3 of those for mining. If the CPU is working 100% too, go 800W... and even that is accounting for the curious 'headroom' people seem to love to have for little reason except to thin out their bank account.


Leave TPU for a couple of days and this..........

Sometimes you're better off just reading the OP and answering it (and skipping all the crap in between) although you can end up with a different set of problems from doing that.

Is cash on delivery a common service available in India still? I noticed while going through the power supplies on Amazon India that it's an option for payment for several different power supplies

 

[EarthDog]

Yeah, admittedly I stopped at the appalling 1kW suggestion and scrolled up a bit from the bottom, LOL!

 

[dirtyferret]

are there no other choices? than Antec and Corsair CX. could you link the site of your supplier? or is it B&M only?


this is within your budget , right?

this seasonic is also nice

or save a few bucks, but still nice.

OK wolf over in jonnyguru runs one of his mining rigs off a corsair CX750, it will do the job. May have to replace the fan 3-4 years down the line if becomes too noisy...

 

[Honey]

Sometimes you're better off just reading the OP and answering it (and skipping all the crap in between) although you can end up with a different set of problems from doing that.

Is cash on delivery a common service available in India still? I noticed while going through the power supplies on Amazon India that it's an option for payment for several different power supplies

Yea its common option, but the supplier at my town is very popular because he have many Frenchise of services include asus msi cooler master,corsair, he is also supportive person like previous i had issue with 1 year old gpu and he replaced it, that's why i like purchasing items from him, but there are many options available in amazon like evga antec silverstone and many but im not sure about these service's..