2 PSU rig mining Issue!!!! | Bitcointalksearch.org

dimpsk

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Quote from: cod3gen on April 02, 2018, 03:40:57 AM

Quote from: Boriss on April 02, 2018, 02:36:44 AM

Basically we have 2 groups of people

Group 1 - Power MBO, HDD + all riser from one PSU and all the cards from other PSU
Group 2 - Power MBO , HDD from one PSU and all the cards with their riser from other PSU

I Don't know which one is correct, because all options will work until you don't get difference in electric current then it will all go to smoke.

Make that a Group 3. The best way is to use one PSU for everything. No smokin :-)

That's it

dimpsk

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Quote from: Boriss on April 02, 2018, 02:36:44 AM

Basically we have 2 groups of people

Group 1 - Power MBO, HDD + all riser from one PSU and all the cards from other PSU
Group 2 - Power MBO , HDD from one PSU and all the cards with their riser from other PSU

I Don't know which one is correct, because all options will work until you don't get difference in electric current then it will all go to smoke.

There is no harm in first case at all.
But. Ya can load first PSU with some GPU in addition,
The point was: power supply of MB and all risers should came from the same PSU

cod3gen

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Quote from: Boriss on April 02, 2018, 02:36:44 AM

Basically we have 2 groups of people

Group 1 - Power MBO, HDD + all riser from one PSU and all the cards from other PSU
Group 2 - Power MBO , HDD from one PSU and all the cards with their riser from other PSU

I Don't know which one is correct, because all options will work until you don't get difference in electric current then it will all go to smoke.

Make that a Group 3. The best way is to use one PSU for everything. No smokin :-)

jillscarbrough

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Quote from: Boriss on April 02, 2018, 02:36:44 AM

Basically we have 2 groups of people

Group 1 - Power MBO, HDD + all riser from one PSU and all the cards from other PSU
Group 2 - Power MBO , HDD from one PSU and all the cards with their riser from other PSU

I Don't know which one is correct, because all options will work until you don't get difference in electric current then it will all go to smoke.

Both work indeed, yes I do both of that scheme. It depends on conditions when we have PSUs with big enough wattage, powering the risers and GPUs from the same source is better. It is about power management, optimizing and risk management.

Boriss

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Basically we have 2 groups of people

Group 1 - Power MBO, HDD + all riser from one PSU and all the cards from other PSU
Group 2 - Power MBO , HDD from one PSU and all the cards with their riser from other PSU

I Don't know which one is correct, because all options will work until you don't get difference in electric current then it will all go to smoke.

dimpsk

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Activity: 112

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Quote from: chianghiong on April 02, 2018, 12:26:27 AM

Quote from: dimpsk on April 02, 2018, 12:18:57 AM

Quote from: chianghiong on April 01, 2018, 06:48:14 PM

Quote from: CryptoStats on April 01, 2018, 11:16:11 AM

Are you using the cable to connect both PSU btw them?

Yes, I am using cable to connect them.

Like the link below:
https://www.ebay.com/itm/Dual-PSU-Cable-Power-Supply-24Pin-ATX-Motherboard-Mainboard-Adapter-Connector-2/232665489120?epid=7014841479&hash=item362bf19ee0:g:3bUAAOSwjuNahF27

You may burned some PCI-e port on MB if you did not feed all your risers and MB from the separate PSU for sure.

What do you mean dimpsk? is it you mean all risers must power with the same PSU as MB?

Yep, it is necessary. How ya 'd balance GPU supplie does not matter.

chianghiong

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Quote from: dimpsk on April 02, 2018, 12:18:57 AM

Quote from: chianghiong on April 01, 2018, 06:48:14 PM

Quote from: CryptoStats on April 01, 2018, 11:16:11 AM

Are you using the cable to connect both PSU btw them?

Yes, I am using cable to connect them.

Like the link below:
https://www.ebay.com/itm/Dual-PSU-Cable-Power-Supply-24Pin-ATX-Motherboard-Mainboard-Adapter-Connector-2/232665489120?epid=7014841479&hash=item362bf19ee0:g:3bUAAOSwjuNahF27

You may burned some PCI-e port on MB if you did not feed all your risers and MB from the separate PSU for sure.

What do you mean dimpsk? is it you mean all risers must power with the same PSU as MB?

dimpsk

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Activity: 112

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Quote from: chianghiong on April 01, 2018, 06:48:14 PM

Quote from: CryptoStats on April 01, 2018, 11:16:11 AM

Are you using the cable to connect both PSU btw them?

Yes, I am using cable to connect them.

Like the link below:
https://www.ebay.com/itm/Dual-PSU-Cable-Power-Supply-24Pin-ATX-Motherboard-Mainboard-Adapter-Connector-2/232665489120?epid=7014841479&hash=item362bf19ee0:g:3bUAAOSwjuNahF27

You may burned some PCI-e port on MB if you did not feed all your risers and MB from the separate PSU for sure.

Apneal

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I've been running risers/mobo on an 800W PSU and all GPU power on a separate 1200W server PSU on 4 different 8 GPU rigs for a year and a half now. Never had any issues with that setup. Switch on GPU power first, then mobo. No add2psu or crap needed. People warning about this setup have never tried to run it.

chianghiong

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Quote from: CryptoStats on April 01, 2018, 11:16:11 AM

Are you using the cable to connect both PSU btw them?

Yes, I am using cable to connect them.

Like the link below:
https://www.ebay.com/itm/Dual-PSU-Cable-Power-Supply-24Pin-ATX-Motherboard-Mainboard-Adapter-Connector-2/232665489120?epid=7014841479&hash=item362bf19ee0:g:3bUAAOSwjuNahF27

dimpsk

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Quote from: cod3gen on April 01, 2018, 03:04:24 PM

Its always problems with multiple PSU`s it seems. Shouldn`t you connect all risers + motherboard on same PSU?

Yep it's necessary for obviously reason.

cod3gen

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PowerMining.pw

Its always problems with multiple PSU`s it seems. Shouldn`t you connect all risers + motherboard on same PSU?

Wipro

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Quote from: dimpsk on April 01, 2018, 02:10:50 PM

Quote from: umine on April 01, 2018, 02:05:45 PM

Quote from: jillscarbrough on April 01, 2018, 01:47:17 PM

Have you tried to switch PSUs position?

-Gigabyte Xtreme Gaming 1200w to a motherboard, SSD, CPU, 3 risers and 3 GPU

-Corsair HX1200 to 3 riser and 3 GPU.

How are you connecting that two PSU? Using add2 PSU (or something similar)? Or jump-start?

I would agree. The problem looks like leakage current between PSUs. You should separate power lines from different PSUs by using add2PSU with relay. Also GPU's riser power should be connected to the same PSU which the GPU connected

Actually not. All risers and MB should be connected to the same PSU.
Better to use relay starter for second PSU.
Better have the common ground for both PSU.

So using 2 or 3 PSU is not such easy, better use this only if urgently needed

Totally he is using the 2400 watts of SMPS to get the power supply but I do not find the people having issue with this much power supply. Actually what is the card he is using now and confirm the clocking he has done here.
If all perfect we may suggest him to go with the Windows OS to Linux.
Even there are some OS perfectly meant for mining sole purpose only mate. Please cable connected the riser to board as well once.

dimpsk

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Activity: 112

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Quote from: umine on April 01, 2018, 02:05:45 PM

Quote from: jillscarbrough on April 01, 2018, 01:47:17 PM

Have you tried to switch PSUs position?

-Gigabyte Xtreme Gaming 1200w to a motherboard, SSD, CPU, 3 risers and 3 GPU

-Corsair HX1200 to 3 riser and 3 GPU.

How are you connecting that two PSU? Using add2 PSU (or something similar)? Or jump-start?

I would agree. The problem looks like leakage current between PSUs. You should separate power lines from different PSUs by using add2PSU with relay. Also GPU's riser power should be connected to the same PSU which the GPU connected

Actually not. All risers and MB should be connected to the same PSU.
Better to use relay starter for second PSU.
Better have the common ground for both PSU.

So using 2 or 3 PSU is not such easy, better use this only if urgently needed

umine

full member

Activity: 405

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Quote from: jillscarbrough on April 01, 2018, 01:47:17 PM

Have you tried to switch PSUs position?

-Gigabyte Xtreme Gaming 1200w to a motherboard, SSD, CPU, 3 risers and 3 GPU

-Corsair HX1200 to 3 riser and 3 GPU.

How are you connecting that two PSU? Using add2 PSU (or something similar)? Or jump-start?

I would agree. The problem looks like leakage current between PSUs. You should separate power lines from different PSUs by using add2PSU with relay. Also GPU's riser power should be connected to the same PSU which the GPU connected

jillscarbrough

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Activity: 588

Merit: 335

Steady State Finance

Have you tried to switch PSUs position?

-Gigabyte Xtreme Gaming 1200w to a motherboard, SSD, CPU, 3 risers and 3 GPU

-Corsair HX1200 to 3 riser and 3 GPU.

How are you connecting that two PSU? Using add2 PSU (or something similar)? Or jump-start?

CryptoStats

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:)