Good to know. I'm currently getting a tad under 1.3T with a 750W PSU which sounds normal and yes loops 1 and 3 do run hotter so I will try dropping the power and voltage to see if that helps with temps. I do have a HP DPS 1200 that I want to use instead to give me a little headroom, I just need to get a breakout board for it.
Getting about 105 chip side @ 1.32T with these settings. Thanks for the tips, as a new miner I find that people on this forum have been very helpful and patient.
Start Voltage 0.64 / 0.62 / 0.64 / 0.62
Max Watts 200 / 150 / 200 / 150
MY opinion is you have it in its sweet spot.
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this type of overheating to 120c is not the same as running the fan at 90% and the gear at 1600gh
You run the fan at 10% and I know you clock lower then 1600gh
Op is sending a lot more juice into his sp20 then you do.
The temp checks are in a few places not all over. Thus it is far more likely his gear will burn up then your gear will.
I run mine at 10% fan, the 2 rear(loop 1 & 3) 'sections' run quite a bit hot up to 120C consistently, the firmware reliably declocks / devolts the ASICs as needed to keep them at 120C or lower. Ran this way for months w/o issues.
My exhaust temp has gotten high as 80C
One thing Ive started doing on my SP20's is setting the rear 'sections' at a lower start voltage / lower power max to keep them running cooler. The front ones Ive set higher to make up for the speed loss. This helps even out the temperatures quite a bit, between the front n back sections.