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Title: PSU x2 Post by: PunchMyNuts on May 11, 2018, 09:20:48 AM 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? Title: Re: PSU x2 Post by: nc50lc on May 11, 2018, 09:27:11 AM Can't tell, unless you tell us your full specs or the Power Supplies and Video Card Brands at least.
Reply with these information:
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). Title: Re: PSU x2 Post by: PunchMyNuts on May 11, 2018, 09:32:40 AM Can't tell, unless you tell us your full specs or the Power Supplies and Video Cards at least. Reply with these information:
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 ) Title: Re: PSU x2 Post by: nc50lc on May 11, 2018, 09:40:41 AM PSU1 AX1500i Corsair (MB connected to this one) Ok, the PSUs are different, this is pretty normal for two different Power Supplies. Read the bottom part of my previous reply.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 ) 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? ( Title: Re: PSU x2 Post by: PunchMyNuts on May 11, 2018, 09:42:27 AM PSU1 AX1500i Corsair (MB connected to this one) Ok, the PSUs are different, this is pretty normal for two different Power Supply. Read the bottom part of my previous reply.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 ) 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 Title: Re: PSU x2 Post by: leonix007 on May 11, 2018, 03:15:24 PM 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 Quote (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. Title: Re: PSU x2 Post by: Midcrypto on May 11, 2018, 03:19:03 PM PSU1 AX1500i Corsair (MB connected to this one) Ok, the PSUs are different, this is pretty normal for two different Power Supplies. Read the bottom part of my previous reply.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 ) 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? ( Ditto this, the AX series Corsair PSU's are platinum rated and the Chinese one is likely Gold rated. Title: Re: PSU x2 Post by: Iannn on May 11, 2018, 04:14:44 PM 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.
Title: Re: PSU x2 Post by: brunocrypto on May 11, 2018, 05:25:46 PM Power Conversion Factor of the PSU, (Wasted energy in heat)
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