Author

Topic: Is safe to install this custom firmware in my S9? (Read 1090 times)

hero member
Activity: 924
Merit: 500
I don't know if the machine will work without both fans connected, but, you could power the fans with an external 12v power supply, just have to connect the pwm pin to the +12v and it will work at full speed. (with the regular + and - to the other pins also of course).

Why so difficult? Simply remove blue wire from connector. Without PWM it runs at 100%.
hero member
Activity: 756
Merit: 560
not 100% sure on the S9 but I replaced the back fan on hundreds of S7s with a fan that had no PWM. As long as the controller can see the RPM its fine even if it cannot control it.
legendary
Activity: 1624
Merit: 1130
Bitcoin FTW!
Pretty sure you can also buy fan speed controllers from China for just a few bucks wth free shipping. Not too sure if those work with the fans that the Antminer has but they should work. As for the firmware, anything the manufacturer gives you should work most of the time.
newbie
Activity: 29
Merit: 0
I don't know if the machine will work without both fans connected, but, you could power the fans with an external 12v power supply, just have to connect the pwm pin to the +12v and it will work at full speed. (with the regular + and - to the other pins also of course).
member
Activity: 79
Merit: 10
It's been well documented that there are major differences between the S9 hardware that can and cannot run the the non-autotune FW.  If you want to brick your newer units (after Oct. 1) then by all means go for it.  However, I suspect the customer (service) guy knows what he's talking about and I'd just leave it.  As the saying goes, "if it ain't broke, don't fix it."
then there is no way to make fan run full speed?
hero member
Activity: 1610
Merit: 538
I'm in BTC XTC
It's been well documented that there are major differences between the S9 hardware that can and cannot run the the non-autotune FW.  If you want to brick your newer units (after Oct. 1) then by all means go for it.  However, I suspect the customer (service) guy knows what he's talking about and I'd just leave it.  As the saying goes, "if it ain't broke, don't fix it."
member
Activity: 79
Merit: 10
hi there.. i had a problem with an antminer s9 and i mailed support. they sent me a firmware for my S9 (that was broken) to try it out and see if it help my surprise was that this firmware has Fan control and i could set the fan to 100% my question is. its safe to install it on my others S9? the customer guy said that this firmware could damage my machine if it was purchase after oct 1.. what u guys think?
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