Hi, guys.
I have tried all that i thought useful.

I CAN'T OVERCLOCK P104 GPU !!


Hardware:
RIG - 13 x P104-100 ASUS
MBO - Asus B250 Mining Expert

NVOC settings (coin ETH, no auto-switch):

1. 1bash OC
TEMPERATURE_CONTROL="YES"
damNmad_ALGO_SPECIFIC_OC="NO"
POWERLIMIT="YES"
 POWERLIMIT_WATTS=150
 __CORE_OVERCLOCK=0
 MEMORY_OVERCLOCK=600
MANUAL_FAN="YES"
 FAN_SPEED=100
P106_100_FULL_HEADLESS_MODE="YES"
AUTOMATIC_OVERCLOCK="NO"

2. automatic OC (waiting 5 hours mining)
TEMPERATURE_CONTROL="YES"
damNmad_ALGO_SPECIFIC_OC="NO"
POWERLIMIT="NO"
 POWERLIMIT_WATTS=150
 __CORE_OVERCLOCK=0
 MEMORY_OVERCLOCK=500
MANUAL_FAN="YES"
 FAN_SPEED=100
P106_100_FULL_HEADLESS_MODE="YES"
AUTOMATIC_OVERCLOCK="YES"

3. Algo OC
TEMPERATURE_CONTROL="YES"
damNmad_ALGO_SPECIFIC_OC="YES"
POWERLIMIT="NO"
 POWERLIMIT_WATTS=150
 __CORE_OVERCLOCK=0
 MEMORY_OVERCLOCK=500
MANUAL_FAN="YES"
 FAN_SPEED=100
P106_100_FULL_HEADLESS_MODE="YES"
AUTOMATIC_OVERCLOCK="NO"

NO ONE WORKING
The same hash rate. Absolutely the same.
Any help, please....