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edited Dec 19, 2020 at 19:00

Well, I just tried over_voltage=0xEA60 (+0.060V offset) with a 1.7 GHz overclock and it works as expected:

pi@azazel:~ $ vcgencmd measure_volts
volt=0.9163V
pi@azazel:~ $ vcgencmd measure_clock arm
frequency(48)=1700419968

So the answer is yes, you can set enter the voltage offset in microvolts by specifying a hexadecimal value. The warranty bit was not tripped (the revision number is still c03112).

I have not found how to enter a negative offset this way and I'm not willing to experiment any further at this point. Any comments adding more information would be appreciated.

Well, I just tried over_voltage=0xEA60 (+0.060V offset) with a 1.7 GHz overclock and it works as expected:

pi@azazel:~ $ vcgencmd measure_volts
volt=0.9163V
pi@azazel:~ $ vcgencmd measure_clock arm
frequency(48)=1700419968

So the answer is yes, you can set enter the voltage offset in microvolts by specifying a hexadecimal value. The warranty bit was not tripped (the revision number is still c03112).

I have not found how to enter a negative offset this way and I'm not willing to experiment any further at this point. Any comments adding more information would be appreciated.

Well, I just tried over_voltage=0xEA60 (+0.060V offset) with a 1.7 GHz overclock and it works as expected:

pi@azazel:~ $ vcgencmd measure_volts
volt=0.9163V
pi@azazel:~ $ vcgencmd measure_clock arm
frequency(48)=1700419968

So the answer is yes, you can enter the voltage offset in microvolts by specifying a hexadecimal value. The warranty bit was not tripped (the revision number is still c03112).

I have not found how to enter a negative offset this way and I'm not willing to experiment any further at this point. Any comments adding more information would be appreciated.

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created Dec 19, 2020 at 16:50

bwDraco

Well, I just tried over_voltage=0xEA60 (+0.060V offset) with a 1.7 GHz overclock and it works as expected:

pi@azazel:~ $ vcgencmd measure_volts
volt=0.9163V
pi@azazel:~ $ vcgencmd measure_clock arm
frequency(48)=1700419968

So the answer is yes, you can set enter the voltage offset in microvolts by specifying a hexadecimal value. The warranty bit was not tripped (the revision number is still c03112).

I have not found how to enter a negative offset this way and I'm not willing to experiment any further at this point. Any comments adding more information would be appreciated.