If you keep the TDP *reliably* turned down to under 145 or so watts per card, a 6 card 1070 rig should be OK on a good 1000 watt PS like the EVGA G2 or a Seasonic X-series.
I would NOT build the rig that way though, too many algos need more power per card especially on the higher-end 1070 models that have a 180 watt TDP.
5 x 1070 on a single good-quality 1000 watt PS should be generally safe.
All EVGA G2 and Seasonic X-series PS are dual-conversion - specifically including the 650 and 750 watt models.
THE easy way to tell a dual-conversion supply is look at the max 12VDC load specification - if it is the same or within a couple watts of the max for the entire supply it's dual-conversion.
G2 and X series are quite comfortable at 90+% of rated load 24/7 - this is true for MOST power supplies at and above the 1KW level and for supplies in a "series" that has a 1KW or higher model at the high end of the "series".
Interesting point - the last 2 models of the Backblaze "pod" use the EVGA G2 750 - I don't know what their "v7.0" model is going to move to if/when they decide to come up with it, or what they are going to move their v6.0 pod construction to when they can no longer GET the discontinued G2 model PS.
Topic: 6x GTX1070 Palit Jetstream - Has anyone build this with a 1000w power supply? (Read 2597 times)
May 26, 2017, 08:26:40 PM
May 26, 2017, 04:52:30 PM
i run 6x 1070 on a 1000watt psu just upgraded to evga g2 1000watt (was running a old seasonic 1000w but it only had 4xpcie cable so i had a splitter running 2x1070's off 1 pcie cable (240watt) not recommened but worked.. the new evga G2 i got has 6x pcie cables one for each card.. i run them at @120-125watt each im pulling from the wall 790-830watts total system (watt meter) no issues
i try to never push a psu past 80% load i was aiming for 800watts at the wall for this rig the G2 is more than happy to pump out 800wat 24/7...
h81 pro btc
g1820t 2.4ghz (35watt cpu)
2gb ddr3 1333mhz (64gb Virtual Memory)
120gb ssd
old 1000watt seasonic gold psu still worked for weeks..(upgraded to brandnew evga 1000w G2)
6x gtx 1070 (@120-125watt each)
win10
i try to never push a psu past 80% load i was aiming for 800watts at the wall for this rig the G2 is more than happy to pump out 800wat 24/7...
h81 pro btc
g1820t 2.4ghz (35watt cpu)
2gb ddr3 1333mhz (64gb Virtual Memory)
120gb ssd
old 1000watt seasonic gold psu still worked for weeks..(upgraded to brandnew evga 1000w G2)
6x gtx 1070 (@120-125watt each)
win10
May 26, 2017, 04:41:40 PM
Hello
Perfectly done!, just you need to load 5V line of PSU B , because all of the 750W PSU I know are single conversion (regulates on the 5V and if the 5V is not loaded, the 12V line will swing wildly usually between 12,7 and 11, 3V which it's not good for the poor three GPUs
Explanation of the single conversion / dual conversion PSUs:
most psus (specially cheapo ones) has several secondary windings on the transformers to obtain 3.3V 5V and 12V, this is done to keep the costs down, but the bad thing is, that the PSU cannot deliver ALL of its power on the 12V line.
since it is expected that you will use it on a PC , the regulation (feedback to the HV LIVE section) it is done with the 5V line.
if you don't load the 5V line the regulation of the PSU will be crap and will swing all the time , sometimes killing what it's connected on it.
some PSUs tolerates better no load on 5V than others, but there is no easy way to know that, except testing them, and specially dangerous is during power on (ringing effect) that it's when most of the damage to the load ocurrs.
Dual conversion PSUs are usualy the HIGH END ones, the transformer has only ONE GIANT winding to obtain 12V ONLY, so ALL of the power can be converter to 12V directly, to obtain 5 and 3.3 they use separate VRMs (usually on a vertical board) like the famous superflower design.
since this power supply is essentially a 12V PSU, with extra gadgets to obtain the other voltages, it regulates on the 12V line itself and it is perfectly safe to only load 12V actually you can load whatever you want because if you only load 5V those are obtained from the 12V anyway by the VRMs so, it is the same thing!.
dual conversion are usually 850 W and UP, with some unusual exceptions like the coolermaster 750W which is dual conversion too.
it is easy to know just by looking at the low voltage side, if you can see a BIG vertical board with coils and VRMs then it is dual conversioin
But you already have your setup working, just find something that eats 1A on 5V and you are set
1A is usually enough to keep it stable.
cheers
Indtk.
Perfectly done!, just you need to load 5V line of PSU B , because all of the 750W PSU I know are single conversion (regulates on the 5V and if the 5V is not loaded, the 12V line will swing wildly usually between 12,7 and 11, 3V which it's not good for the poor three GPUs
Explanation of the single conversion / dual conversion PSUs:
most psus (specially cheapo ones) has several secondary windings on the transformers to obtain 3.3V 5V and 12V, this is done to keep the costs down, but the bad thing is, that the PSU cannot deliver ALL of its power on the 12V line.
since it is expected that you will use it on a PC , the regulation (feedback to the HV LIVE section) it is done with the 5V line.
if you don't load the 5V line the regulation of the PSU will be crap and will swing all the time , sometimes killing what it's connected on it.
some PSUs tolerates better no load on 5V than others, but there is no easy way to know that, except testing them, and specially dangerous is during power on (ringing effect) that it's when most of the damage to the load ocurrs.
Dual conversion PSUs are usualy the HIGH END ones, the transformer has only ONE GIANT winding to obtain 12V ONLY, so ALL of the power can be converter to 12V directly, to obtain 5 and 3.3 they use separate VRMs (usually on a vertical board) like the famous superflower design.
since this power supply is essentially a 12V PSU, with extra gadgets to obtain the other voltages, it regulates on the 12V line itself and it is perfectly safe to only load 12V actually you can load whatever you want because if you only load 5V those are obtained from the 12V anyway by the VRMs so, it is the same thing!.
dual conversion are usually 850 W and UP, with some unusual exceptions like the coolermaster 750W which is dual conversion too.
it is easy to know just by looking at the low voltage side, if you can see a BIG vertical board with coils and VRMs then it is dual conversioin
But you already have your setup working, just find something that eats 1A on 5V and you are set
1A is usually enough to keep it stable.cheers
Indtk.
Thanks induktor, very clear explaination!!
May 26, 2017, 08:51:46 AM
Hello
Perfectly done!, just you need to load 5V line of PSU B , because all of the 750W PSU I know are single conversion (regulates on the 5V and if the 5V is not loaded, the 12V line will swing wildly usually between 12,7 and 11, 3V which it's not good for the poor three GPUs
Explanation of the single conversion / dual conversion PSUs:
most psus (specially cheapo ones) has several secondary windings on the transformers to obtain 3.3V 5V and 12V, this is done to keep the costs down, but the bad thing is, that the PSU cannot deliver ALL of its power on the 12V line.
since it is expected that you will use it on a PC , the regulation (feedback to the HV LIVE section) it is done with the 5V line.
if you don't load the 5V line the regulation of the PSU will be crap and will swing all the time , sometimes killing what it's connected on it.
some PSUs tolerates better no load on 5V than others, but there is no easy way to know that, except testing them, and specially dangerous is during power on (ringing effect) that it's when most of the damage to the load ocurrs.
Dual conversion PSUs are usualy the HIGH END ones, the transformer has only ONE GIANT winding to obtain 12V ONLY, so ALL of the power can be converter to 12V directly, to obtain 5 and 3.3 they use separate VRMs (usually on a vertical board) like the famous superflower design.
since this power supply is essentially a 12V PSU, with extra gadgets to obtain the other voltages, it regulates on the 12V line itself and it is perfectly safe to only load 12V actually you can load whatever you want because if you only load 5V those are obtained from the 12V anyway by the VRMs so, it is the same thing!.
dual conversion are usually 850 W and UP, with some unusual exceptions like the coolermaster 750W which is dual conversion too.
it is easy to know just by looking at the low voltage side, if you can see a BIG vertical board with coils and VRMs then it is dual conversioin
But you already have your setup working, just find something that eats 1A on 5V and you are set 1A is usually enough to keep it stable.
cheers
Indtk.
Perfectly done!, just you need to load 5V line of PSU B , because all of the 750W PSU I know are single conversion (regulates on the 5V and if the 5V is not loaded, the 12V line will swing wildly usually between 12,7 and 11, 3V which it's not good for the poor three GPUs
Explanation of the single conversion / dual conversion PSUs:
most psus (specially cheapo ones) has several secondary windings on the transformers to obtain 3.3V 5V and 12V, this is done to keep the costs down, but the bad thing is, that the PSU cannot deliver ALL of its power on the 12V line.
since it is expected that you will use it on a PC , the regulation (feedback to the HV LIVE section) it is done with the 5V line.
if you don't load the 5V line the regulation of the PSU will be crap and will swing all the time , sometimes killing what it's connected on it.
some PSUs tolerates better no load on 5V than others, but there is no easy way to know that, except testing them, and specially dangerous is during power on (ringing effect) that it's when most of the damage to the load ocurrs.
Dual conversion PSUs are usualy the HIGH END ones, the transformer has only ONE GIANT winding to obtain 12V ONLY, so ALL of the power can be converter to 12V directly, to obtain 5 and 3.3 they use separate VRMs (usually on a vertical board) like the famous superflower design.
since this power supply is essentially a 12V PSU, with extra gadgets to obtain the other voltages, it regulates on the 12V line itself and it is perfectly safe to only load 12V actually you can load whatever you want because if you only load 5V those are obtained from the 12V anyway by the VRMs so, it is the same thing!.
dual conversion are usually 850 W and UP, with some unusual exceptions like the coolermaster 750W which is dual conversion too.
it is easy to know just by looking at the low voltage side, if you can see a BIG vertical board with coils and VRMs then it is dual conversioin
But you already have your setup working, just find something that eats 1A on 5V and you are set
1A is usually enough to keep it stable.cheers
Indtk.
May 26, 2017, 04:43:40 AM
Hello
I have working 5x 1070 with 1000W PSU, and it is quite loaded, DON"T do 6 if you care about your power supply
even if you lower the TPL of the cards, when they start mining, there is a 1-2 second spike at full power (180W per card) that alone is enough to kill/shutdown your 1000W psu, remember 99% consumer grade PSUs state watts as MAX not as CONTINUOUS, those are NOT SERVER GRADE PSUs!!, so don't load it constantly above 60% if you intend to keep that PSU for a while.
I have never ever blowed a PSU, and have over 40 in operation, some in dual PSU mode, some single, but never load PSUs more than 60% if you need more, use TWO with a ADD2PSU like gadget (dont bridge the green cables for god's sake! i have seen it went terribly wrong! hehehe)
also if you use dual PSU setup, they MUST be dual conversion units, most cheapo PSUs (below 850W) regulate on the 5V line, and since your second PSU will NOT HAVE the 5v line loaded, it will be unstable as fuck and probably kill one of your GPUs, i have it tested it extensively when i first build my rigs back in 2013.
if you wanna go dirty cheap, you can use a single conversion unit as the FIRST PSU (the one that connects to the motherboard) but the secondary PSU that will only power the GPUs must be dual conversion units. (the risers are ALWAYS powered by the first PSUs to prevent current flowing inside the motherboard killing everything in it's path )
I will probably stick with 5 x 1070 (which is what i did, because PSUs >1000W costs a fortune and it doesn't worth it the hassle of going DUAL just for one more GPU IMHO.
cheers
Indtk.
I have working 5x 1070 with 1000W PSU, and it is quite loaded, DON"T do 6 if you care about your power supply
even if you lower the TPL of the cards, when they start mining, there is a 1-2 second spike at full power (180W per card) that alone is enough to kill/shutdown your 1000W psu, remember 99% consumer grade PSUs state watts as MAX not as CONTINUOUS, those are NOT SERVER GRADE PSUs!!, so don't load it constantly above 60% if you intend to keep that PSU for a while.
I have never ever blowed a PSU, and have over 40 in operation, some in dual PSU mode, some single, but never load PSUs more than 60% if you need more, use TWO with a ADD2PSU like gadget (dont bridge the green cables for god's sake! i have seen it went terribly wrong! hehehe
)also if you use dual PSU setup, they MUST be dual conversion units, most cheapo PSUs (below 850W) regulate on the 5V line, and since your second PSU will NOT HAVE the 5v line loaded, it will be unstable as fuck and probably kill one of your GPUs, i have it tested it extensively when i first build my rigs back in 2013.
if you wanna go dirty cheap, you can use a single conversion unit as the FIRST PSU (the one that connects to the motherboard) but the secondary PSU that will only power the GPUs must be dual conversion units. (the risers are ALWAYS powered by the first PSUs to prevent current flowing inside the motherboard killing everything in it's path
)I will probably stick with 5 x 1070 (which is what i did, because PSUs >1000W costs a fortune and it doesn't worth it the hassle of going DUAL just for one more GPU IMHO.
cheers
Indtk.
Thanks for your input
For dual PSU setup
1) Add2PSU
2) 2x 750w PSU
3) PSU A(Primary) - To power mobo, other peripherals, including pcie risers and 3 GPUs
4) PSU B(Secondary) - To power 3 GPUs (Do not power any other devices/peripherals, only use 8pin power connectors for 3 GPUs)
5) I don't really get what the single and dual conversion unit means, i suppose i have to load the 5v in PSU B as well, ill just add some fans there.
This is what i understood from your post, is this correct?
May 25, 2017, 12:55:33 PM
Hello
I have working 5x 1070 with 1000W PSU, and it is quite loaded, DON"T do 6 if you care about your power supply
even if you lower the TPL of the cards, when they start mining, there is a 1-2 second spike at full power (180W per card) that alone is enough to kill/shutdown your 1000W psu, remember 99% consumer grade PSUs state watts as MAX not as CONTINUOUS, those are NOT SERVER GRADE PSUs!!, so don't load it constantly above 60% if you intend to keep that PSU for a while.
I have never ever blowed a PSU, and have over 40 in operation, some in dual PSU mode, some single, but never load PSUs more than 60% if you need more, use TWO with a ADD2PSU like gadget (dont bridge the green cables for god's sake! i have seen it went terribly wrong! hehehe)
also if you use dual PSU setup, they MUST be dual conversion units, most cheapo PSUs (below 850W) regulate on the 5V line, and since your second PSU will NOT HAVE the 5v line loaded, it will be unstable as fuck and probably kill one of your GPUs, i have it tested it extensively when i first build my rigs back in 2013.
if you wanna go dirty cheap, you can use a single conversion unit as the FIRST PSU (the one that connects to the motherboard) but the secondary PSU that will only power the GPUs must be dual conversion units. (the risers are ALWAYS powered by the first PSUs to prevent current flowing inside the motherboard killing everything in it's path )
I will probably stick with 5 x 1070 (which is what i did, because PSUs >1000W costs a fortune and it doesn't worth it the hassle of going DUAL just for one more GPU IMHO.
cheers
Indtk.
I have working 5x 1070 with 1000W PSU, and it is quite loaded, DON"T do 6 if you care about your power supply
even if you lower the TPL of the cards, when they start mining, there is a 1-2 second spike at full power (180W per card) that alone is enough to kill/shutdown your 1000W psu, remember 99% consumer grade PSUs state watts as MAX not as CONTINUOUS, those are NOT SERVER GRADE PSUs!!, so don't load it constantly above 60% if you intend to keep that PSU for a while.
I have never ever blowed a PSU, and have over 40 in operation, some in dual PSU mode, some single, but never load PSUs more than 60% if you need more, use TWO with a ADD2PSU like gadget (dont bridge the green cables for god's sake! i have seen it went terribly wrong! hehehe
)also if you use dual PSU setup, they MUST be dual conversion units, most cheapo PSUs (below 850W) regulate on the 5V line, and since your second PSU will NOT HAVE the 5v line loaded, it will be unstable as fuck and probably kill one of your GPUs, i have it tested it extensively when i first build my rigs back in 2013.
if you wanna go dirty cheap, you can use a single conversion unit as the FIRST PSU (the one that connects to the motherboard) but the secondary PSU that will only power the GPUs must be dual conversion units. (the risers are ALWAYS powered by the first PSUs to prevent current flowing inside the motherboard killing everything in it's path
)I will probably stick with 5 x 1070 (which is what i did, because PSUs >1000W costs a fortune and it doesn't worth it the hassle of going DUAL just for one more GPU IMHO.
cheers
Indtk.
May 25, 2017, 10:30:51 AM
I will try with a 1000w, if it isn't sufficient, i will try 2 750 psus with add2psu.
will be interesting what kind of watts it is going to pull from the wall. if the psu does power down, i will remove 1 gpu.
btw my 6x 480s have been running for 4 months now with superflower 1000w.
@Vaccinus - what is ur hashrate for zec and power draw from the wall?
will be interesting what kind of watts it is going to pull from the wall. if the psu does power down, i will remove 1 gpu.
btw my 6x 480s have been running for 4 months now with superflower 1000w.
@Vaccinus - what is ur hashrate for zec and power draw from the wall?
May 25, 2017, 10:27:16 AM
i have this exact build and it run very good on a 1000 watt but i need to lower the tdp to 70%, the psu is the rm 1000i i can't go above 75% in any algo , core is set to 75% or 100% all the time
May 25, 2017, 10:09:54 AM
how many watts are you pulling from the wall?
what are you mining with them? and what hashrates?
what are you mining with them? and what hashrates?
a 1070 without lowering power limit pulls about 120w per card
I have my power limits lowered where they pull around 100w per card
I use 1600w PSU's so I'm no where near power limits.
May 25, 2017, 09:55:09 AM
I have a couple of 6x 470s and 6x 480s, they both work with 1000w
currently using
superflower 1000w
evga 1000w
corsair rm1000x
corsair rm1000i
Anything above 1000w is always out of stock, so anything above 1000w is not optional.
Any other recommendations for PSU @ 1000w
Question
Will the above psus work with 6x GTX 1070, while mining zec
If you have 6x gtx 1070, what is you current power draw from the wall, and what and psu are you using.
i have ordered 6 of thesecards, they are currently being shipped, can't wait to test them out.
currently using
superflower 1000w
evga 1000w
corsair rm1000x
corsair rm1000i
Anything above 1000w is always out of stock, so anything above 1000w is not optional.
Any other recommendations for PSU @ 1000w
Question
Will the above psus work with 6x GTX 1070, while mining zec
If you have 6x gtx 1070, what is you current power draw from the wall, and what and psu are you using.
i have ordered 6 of thesecards, they are currently being shipped, can't wait to test them out.
Stock 1070s apparently pull up to 150 watts but most other variants have a power limit of 180 watts by default.
With Gigabyte G1 Gaming 1070's they are around 90% power limit for me mining Zec so it comes down to 972 watts plus the computer is 50-70 watts.
Apparently a 6 x 480 rig consumes 1050 watts so you're already above spec with them as well (source).
I use 1300 watt PSU with 6 x 1070 which comes down to 80% of the PSUs capacity. That is the maximum capacity I'm confident going even on beast power supplies like EVGA Supernova G2 which comes with 10 years of warranty.
Nothing ever good comes out of running stuff at the peak of their spec 24/7.
May 25, 2017, 09:46:06 AM
how many watts are you pulling from the wall?
what are you mining with them? and what hashrates?
what are you mining with them? and what hashrates?
May 25, 2017, 09:43:42 AM
I have a couple of 6x 470s and 6x 480s, they both work with 1000w
currently using
superflower 1000w
evga 1000w
corsair rm1000x
corsair rm1000i
Anything above 1000w is always out of stock, so anything above 1000w is not optional.
Any other recommendations for PSU @ 1000w
Question
Will the above psus work with 6x GTX 1070, while mining zec
If you have 6x gtx 1070, what is you current power draw from the wall, and what and psu are you using.
i have ordered 6 of thesecards, they are currently being shipped, can't wait to test them out.
currently using
superflower 1000w
evga 1000w
corsair rm1000x
corsair rm1000i
Anything above 1000w is always out of stock, so anything above 1000w is not optional.
Any other recommendations for PSU @ 1000w
Question
Will the above psus work with 6x GTX 1070, while mining zec
If you have 6x gtx 1070, what is you current power draw from the wall, and what and psu are you using.
i have ordered 6 of thesecards, they are currently being shipped, can't wait to test them out.
I couldn't get a straight anywhere regarding 6 or 7 gpu nvidia rigs so I just built 2x 4gpu 1070 rigs, they work fine.
May 25, 2017, 09:39:16 AM
I have a couple of 6x 470s and 6x 480s, they both work with 1000w
currently using
superflower 1000w
evga 1000w
corsair rm1000x
corsair rm1000i
Anything above 1000w is always out of stock, so anything above 1000w is not optional.
Any other recommendations for PSU @ 1000w
Question
Will the above psus work with 6x GTX 1070, while mining zec
If you have 6x gtx 1070, what is you current power draw from the wall, and what and psu are you using.
i have ordered 6 of thesecards, they are currently being shipped, can't wait to test them out.
currently using
superflower 1000w
evga 1000w
corsair rm1000x
corsair rm1000i
Anything above 1000w is always out of stock, so anything above 1000w is not optional.
Any other recommendations for PSU @ 1000w
Question
Will the above psus work with 6x GTX 1070, while mining zec
If you have 6x gtx 1070, what is you current power draw from the wall, and what and psu are you using.
i have ordered 6 of thesecards, they are currently being shipped, can't wait to test them out.
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