What is the Recommended PCB Temp. & Chip Temp. for Antminer?

[galaxym1]

Hello Guys,

Hope you are doing well. Can you please clear my doubts?

What is the recommended temperature for PCB & Chip for Antminer? Is it the same temperature for all Antminer models?

Recently, I purchased 2 units for T17+ 64TH

I use Awesomeminer for remote monitoring. Awesome miner shows me both PCB & Chip temperatures

it shows highest PCB temperature as 51C, and that miner shows Chip temperature as 78C

https://drive.google.com/file/d/1ctDb1le-W54Q95pu85b0_twryi2lw43t/view?usp=sharing

https://drive.google.com/file/d/14RGfeYQSDRE6w1HJyUeZ4BGAqaKTFgHm/view?usp=sharing

According to Awesomeminer, if chip temperature goes 80C or above, then it turns yellow

Does it mean that going 80C or above for chip temperature is dangerous?

Also, do you think the miner firmware is reliable? because I had experience with Antminer S9 model in the past where the hash board got fried, and the status page was showing 200C for the board
I think it was my mistake that I replaced the miner fan with another fan to lower noise level, when I woke up the next day, the fan was not spinning, but the firmware should have stopped mining once 80C was crossed right? I feel there is a delay for between temperature check, and fan RPM adjustment, and by the time firmware checks the temperature, then it is game over for the hash board before adjusting fan RPM.

[Pendrak]

https://support.bitmain.com/hc/en-us/articles/360005088914-Miner-normal-operating-temperature-range

Code:

Below shows the normal temperature of the miners:

Antminer 	Temperature in degree Celsius 
S9 series excl. S9i, S9j, S9-Hydro               

Range: 65 - 115

Chip max. 135

PCB max. 90

S9i

PCB max. 85

S9j and S9-Hydro

PCB max. 95

T9 series excl. T9+                        

Range: 65 - 115 

Chip max. 135

PCB max. 90

T9+	
Chip max. 125 

PCB max. 95

L3

Range: 30 - 85

PCB max. 85

L3+ and L3++

Range: 30 - 85

PCB max. 90

D3

Range: 35 - 80

PCB max. 85

D5

PCB max.85

A3	
Chip max. 115 

PCB max. 85

X3	
Chip max. 127 

PCB max. 80

B3	
Chip max. 127

PCB max. 80

V9	
Range: 30 - 70

PCB max. 80

Z9 Mini

Chip max. 125

PCB max. 80

Z9

PCB max. 80

E3

PCB max. 65

DR3/DR5

PCB max. 85

S15

PCB max. 80

S11

PCB max. 95

T15

PCB max. 80

S17/S17 Pro/T17

PCB max. 75

S9 SE/S9k

PCB max. 85

S17e/T17e/S17+

PCB max. 80

T17+

PCB max. 75

[mikeywith]

because I had experience with Antminer S9 model in the past where the hash board got fried, and the status page was showing 200C for the board
I think it was my mistake that I replaced the miner fan with another fan to lower noise level, when I woke up the next day, the fan was not spinning, but the firmware should have stopped mining once 80C was crossed right?

It won't stop mining at 80c, not even at 100c, or at least this is what the default firmware allowes you to go to, since S9 has a max temp of 135c 80c is pretty cool, and i have seen those S9 run above 100c for a very long time without a hitch, now going 200c is a different story, I believe that some of these custom firmware have an option to disable the fan-check function in cgminer use for immersion cooling) where fans are unplugged anyway, so maybe it was activated by default or you have mistakenly activated it? hard to tell, you have to check with the firmware devs to confirm that.

Now back to your T17e it does say "PCB max. 80" but that is far form reality, all these 17 series have a terrible solder that will fall-off with the slightest increase in temps, there is no exact figure that these gears will run safe, but the cooler the better, i believe your readings of "PCB temperature as 51C" is not bad at all.