I have a mid-2015 15’ MBP with an i7-4980HQ 2.8 Ghz CPU, running Catalina 10.15.6.
[br]
Undervolting is valuable, but only when it is part of a complete effort, and calibrated properly.
[br]
My solution is:
1 Re-paste the heat sink using Thermalright CFIII paste, using the spread around the die method of application.
2 Thoroughly clean the fans, air ducts, inside of the system.
3 Find the Max Performance/Wattage Sweet spot for my system. In my case is Power Limit to 40 Watts.[br]
4 Find the max performance undervolt setting. In my case, under volt by -75 mV.[br]
5 Leave the Power Limit, Turbo Boost and Performance boxes checked in Volta.[br]
6 Make sure that “csrutil enable —without kext” is run in terminal in recovery mode so the Volta KEXT will load.
7 Set the fans in iStat Menus to ramp up at 60C, 70C, 80C and 90C to 25%, 50%, 75% and Full Tilt Boogie.[br]
8 If you are using an external monitor (Radeon R9 M370X driving it), make certain you have the MBP closed and the “Displays have separate Spaces” from System Preferences —-> Mission Control turned to OFF (unchecked) when running Cinebench r20.[br]
The last has to do with funky temperature throttling the OS does when both the external and internal graphics are running at the same time. I think it is sort of a system bug. Simple answer is ''close the lid once you are fired up.''[br]
With all of this, I get an Idle set of temps around 50 C, moderate use like typing this in the browser of ~60C and in the high 70’s when running Cinebench.[br]
-
And a long reliable cpu run at full utilization and 3.0 Ghtz without any temp or frequency throttling.[br]
+
And a long reliable cpu run at full utilization and 3.0 GHz without any temp or frequency throttling.[br]
And an easily repeatable '''CB score of 1439'''.[br]
The process to calibrate Volta is discussed at the Russian’s YouTube:[br]
I have a mid-2015 15’ MBP with an i7-4980HQ 2.8 Ghz CPU, running Catalina 10.15.6.
[br]
-
Undervolting is valuable, but only when it is part of a complete effort, and calibrated properly.
[br]
-
My solution is:
1 Re-paste the heat sink using Thermalright CFIII paste, using the spread around the die method of application.
2 Thoroughly clean the fans, air ducts, inside of the system.
3 Find the Max Performance/Wattage Sweet spot for my system. In my case is Power Limit to 40 Watts.[br]
-
4 Find the max performance undervolt setting. In my case, under volt by -75 mV.[br]
-
5 Leave the Power Limit, Turbo Boost and Performance boxes checked in Volta.[br]
-
6 Make sure that “csrutil enable —without kext” is run in terminal in recovery mode so the Volta KEXT will load.
7 Set the fans in iStat Menus to ramp up at 60C, 70C, 80C and 90C to 25%, 50%, 75% and Full Tilt Boogie.[br]
-
8 If you are using an external monitor (Radeon R9 M370X driving it), make certain you have the MBP closed and the “Displays have separate Spaces” from System Preferences —-> Mission Control turned to OFF (unchecked) when running Cinebench r20.[br]
-
The last has to do with funky temperature throttling the OS does when both the external and internal graphics are running at the same time. I think it is sort of a system bug. Simple answer is ''close the lid once you are fired up.''[br]
-
With all of this, I get an Idle set of temps around 50 C, moderate use like typing this in the browser of ~60C and in the high 70’s when running Cinebench.[br]
-
-
And a long reliable cpu run at full utilization and 3.0 GHz without any temp or frequency throttling.[br]
-
+
And a long reliable cpu run at full utilization and 3.0 Ghtz without any temp or frequency throttling.[br]
And an easily repeatable '''CB score of 1439'''.[br]
-
The process to calibrate Volta is discussed at the Russian’s YouTube:[br]
I have a mid-2015 15’ MBP with an i7-4980HQ 2.8 Ghz CPU, running Catalina 10.15.6.
[br]
+
Undervolting is valuable, but only when it is part of a complete effort, and calibrated properly.
[br]
+
My solution is:
1 Re-paste the heat sink using Thermalright CFIII paste, using the spread around the die method of application.
2 Thoroughly clean the fans, air ducts, inside of the system.
3 Find the Max Performance/Wattage Sweet spot for my system. In my case is Power Limit to 40 Watts.[br]
+
4 Find the max performance undervolt setting. In my case, under volt by -75 mV.[br]
+
5 Leave the Power Limit, Turbo Boost and Performance boxes checked in Volta.[br]
+
6 Make sure that “csrutil enable —without kext” is run in terminal in recovery mode so the Volta KEXT will load.
7 Set the fans in iStat Menus to ramp up at 60C, 70C, 80C and 90C to 25%, 50%, 75% and Full Tilt Boogie.[br]
+
8 If you are using an external monitor (Radeon R9 M370X driving it), make certain you have the MBP closed and the “Displays have separate Spaces” from System Preferences —-> Mission Control turned to OFF (unchecked) when running Cinebench r20.[br]
+
The last has to do with funky temperature throttling the OS does when both the external and internal graphics are running at the same time. I think it is sort of a system bug. Simple answer is ''close the lid once you are fired up.''[br]
+
With all of this, I get an Idle set of temps around 50 C, moderate use like typing this in the browser of ~60C and in the high 70’s when running Cinebench.[br]
-
And a long reliable cpu run at full utilization and 3.0 Ghtz without any temp or frequency throttling.[br]
+
+
And a long reliable cpu run at full utilization and 3.0 GHz without any temp or frequency throttling.[br]
+
And an easily repeatable '''CB score of 1439'''.[br]
+
The process to calibrate Volta is discussed at the Russian’s YouTube:[br]
I have a mid-2015 15’ MBP with an i7-4980HQ 2.8 Ghz CPU, running Catalina 10.15.6.
[br]
Undervolting is valuable, but only when it is part of a complete effort, and calibrated properly.
[br]
My solution is:
1 Re-paste the heat sink using Thermalright CFIII paste, using the spread around the die method of application.
2 Thoroughly clean the fans, air ducts, inside of the system.
3 Find the Max Performance/Wattage Sweet spot for my system. In my case is Power Limit to 40 Watts.[br]
4 Find the max performance undervolt setting. In my case, under volt by -75 mV.[br]
5 Leave the Power Limit, Turbo Boost and Performance boxes checked in Volta.[br]
6 Make sure that “csrutil enable —without kext” is run in terminal in recovery mode so the Volta KEXT will load.
7 Set the fans in iStat Menus to ramp up at 60C, 70C, 80C and 90C to 25%, 50%, 75% and Full Tilt Boogie.[br]
8 If you are using an external monitor (Radeon R9 M370X driving it), make certain you have the MBP closed and the “Displays have separate Spaces” from System Preferences —-> Mission Control turned to OFF (unchecked) when running Cinebench r20.[br]
The last has to do with funky temperature throttling the OS does when both the external and internal graphics are running at the same time. I think it is sort of a system bug. Simple answer is ''close the lid once you are fired up.''[br]
With all of this, I get an Idle set of temps around 50 C, moderate use like typing this in the browser of ~60C and in the high 70’s when running Cinebench.[br]
And a long reliable cpu run at full utilization and 3.0 Ghtz without any temp or frequency throttling.[br]
And an easily repeatable '''CB score of 1439'''.[br]
The process to calibrate Volta is discussed at the Russian’s YouTube:[br]
[br]
https://youtu.be/AW5BSW3PK7c[br]
[br]