PSU x2

[PunchMyNuts]

Hello,
I have a rig using SMOS, MB: Asrock h110, x8 1080ti 11g
First PSU connected to x4 GPU + mb
Second PSU connnected to x4 GPU

Second PSU draws more power than the first one, any ideas?

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[nc50lc]

Can't tell, unless you tell us your full specs or the Power Supplies and Video Card Brands at least.

Reply with these information:

• PSU1 and PSU2 Brand and Model
• GPU Brands and Model, which of them are connected to PSU1/PSU2
• Each GPU's overclocking settings

Then, others/I may try find out the reason why.
Here's a hard guess: Some GPUs of the same model can be more efficient (hardware quality) than the others,
the chance is higher if their Brands are assorted (different manufacturers).

[PunchMyNuts]

Can't tell, unless you tell us your full specs or the Power Supplies and Video Cards at least.

Reply with these information:

• PSU1 and PSU2 Brand and Model
• GPU Brands and Model, which of them are connected to PSU1/PSU2
• Each GPU's overclocking settings

Then, others/I may try find out the reason why.

PSU1 AX1500i Corsair (MB connected to this one)
PSU2 x miner 1600
GPU : 1080ti Gigabyte 11g gaming (all the 8 GPus are the same)
OC the same for all ( Core 125 Memory 100 Power 225 )

[nc50lc]

PSU1 AX1500i Corsair (MB connected to this one)
PSU2 x miner 1600
GPU : 1080ti Gigabyte 11g gaming (all the 8 GPus are the same)
OC the same for all ( Core 125 Memory 100 Power 225 )

Ok, the PSUs are different, this is pretty normal for two different Power Supplies. Read the bottom part of my previous reply.

In addition, Corsair is a reputable brand which strongly suggest that your first PSU has a good power efficiency.
The second one is a Chinese Brand? (I never heard of it, honestly-edit-Taiwan), it could be less efficient that makes it more power-hungry than the 1st one.

[PunchMyNuts]

PSU1 AX1500i Corsair (MB connected to this one)
PSU2 x miner 1600
GPU : 1080ti Gigabyte 11g gaming (all the 8 GPus are the same)
OC the same for all ( Core 125 Memory 100 Power 225 )

Ok, the PSUs are different, this is pretty normal for two different Power Supply. Read the bottom part of my previous reply.

In addition, Corsair is a reputable brand which strongly suggest that your first PSU has a good power efficiency.
The second one is a Chinese Brand? (I never heard of it, honestly), it could be less efficient that makes it more power-hungry than the 1st one.

How can I calculate each gpu power draw with my OC setting and MB

Because before I got the Corsair 1500 I had EVGA 1600 and ran 9 Gpu's Now I barley ran 8, So I try to find the problem (The shitty Chinese PSU been fine with the EVGA and I dont belive the 100 W diff between EVGA and Corsaie made the diff

[leonix007]

How can I calculate each gpu power draw with my OC setting and MB

Some miners already have this feature, EWBF, DSTM

Others are using wattmeter from the wall

(The shitty Chinese PSU been fine with the EVGA and I dont belive the 100 W diff between EVGA and Corsaie made the diff

do you mean power draw for this unbranded PSU is lower when you use the EVGA?

sorry but this is a bit confusing.

[Midcrypto]

PSU1 AX1500i Corsair (MB connected to this one)
PSU2 x miner 1600
GPU : 1080ti Gigabyte 11g gaming (all the 8 GPus are the same)
OC the same for all ( Core 125 Memory 100 Power 225 )

Ok, the PSUs are different, this is pretty normal for two different Power Supplies. Read the bottom part of my previous reply.

In addition, Corsair is a reputable brand which strongly suggest that your first PSU has a good power efficiency.
The second one is a Chinese Brand? (I never heard of it, honestly-edit-Taiwan), it could be less efficient that makes it more power-hungry than the 1st one.

Ditto this, the AX series Corsair PSU's are platinum rated and the Chinese one is likely Gold rated.

[Iannn]

There are lots of variables but I do not think this should be a problem.  Just make sure you are powering the risers and gpu from the same power supply.  I am in the process of switching over to powering the motherboard with a smaller atx psu and the risers and gpu's from platinum rated server psu's.  But different power supplies running different stuff will naturally not be pulling the exact same watts.

[brunocrypto]

Power Conversion Factor of the PSU, (Wasted energy in heat)