ok so some more info after i got a reply from bitmain...
1. these miners have an auto freq checker that checks every freq when the miner turns on to run the board at the highest posible freq which causes huge fluctuations in board temps.
2. bitmain confirmed when i said before....they say it can take up to
40 minutes before the miner starts hashing. this is because every time the miner reboots it has to run through the freq checker again! (i honestly think this is to use lesser quality boards with higher quality boards. one board like mine will run harder and much hotter which isnt good for that board)
3. no fan control. instead it uses an auto fan control feature that fluctuates the fan speed based on the temps of the boards. this sounds great but like i said one of my miners has a board that runs almost 100 degrees at the chip which none of my other miners come close to that so the flans constantly speed up to 5krpm when the temps hit 100 degrees then drop back down to 2400 rpm when the temps go below what looks like 95 degrees at the chip. this happens over and over with no end and sounds like a kid pullin up at the light next to u revin his mommy and daddys dodge charger just a little slower. i told them i want fan controls back in the firmware.
4. take screen shots after the miner shows 40+ minutes of runtime before sending them to bitmain. i had no idea i had the wait the better part of an hour for the miner to finally start so i emailed them after waiting and seeing socket connection errors which was a false error...it was just that the miner was testing the frequencies.
5. you can see if your miner is testing the frequencies by waiting for the miner to fully boot up and putting you hand in the air coming out. when testing frequencies the temps of the air will go warm then cold then warm then cold....it does this for like 40 minutes so if you notice the temp changes wait 40 minutes at least before assuming your miner is dead! orrrr sell you so called "dead" miner to me at a significant discount
. lol jk but this part is pretty important.
this new auto freq is dangerous. i run my s9's with 2 pcie cables per board. the cables are not warm to the touch at all when using 2 because they are 16awg wires and i dont overclock the miner at all. it is easy to figure out how many to use...you just take the wattage (i have a meter) and divide it by 3 ( yes the controllers power isnt separated from the wattage just in case) and each 16awg cable if well made can handle something like 300w each but i try not to push it past 200 and change so my wires dont run hot at all. esentially what this new firmware does is make the miner less efficient because some boards are being overclocked to higher freqs making the math above useless because each board wont use about the same amount of power....the usage will fluctuate alot between the 3 boards. this is retardedddddddd.