Hi everyone,
This cpu fitted in my workstation (lenovo p53) generates a lot of heat. The laptop runs frequently under full load for hours, in this situation cpu temperatures never fall below 95°C and full speed fans makes no difference. Downloaded throttlestop and started to play with it but i'm struggling with it.
System automatically shuts down @-200mV on CPU and/or -180mV on cache. Aida64 still notice throttling @ -160/140mV. Moreover when undervolted the laptop seems more "lazy" compared to the OEM configuration.
I tested the undervolt with some numerical simulation i'm working with while monitoring Limit Reasons window. Well:
-thermal throttle still happens
-quite often cpu is being power limited but actual power consumption in 20W while the short term PL is set by default to 60 and PL2 to 90
-VR CURRENT limit appears
-i see no gain in performance (same analysis time)
Am i doing something wrong? My questions are
-what is that vr current limit
-is it safe to increase power limits letting thermal throttle do the job if needed
-how can i tune the setup to make the cpu safely run at maximum speed for the time is needed limiting any kind of throttling.
I also bought a stick of thermal grizzly to improve the gain from undervolt
This cpu fitted in my workstation (lenovo p53) generates a lot of heat. The laptop runs frequently under full load for hours, in this situation cpu temperatures never fall below 95°C and full speed fans makes no difference. Downloaded throttlestop and started to play with it but i'm struggling with it.
System automatically shuts down @-200mV on CPU and/or -180mV on cache. Aida64 still notice throttling @ -160/140mV. Moreover when undervolted the laptop seems more "lazy" compared to the OEM configuration.
I tested the undervolt with some numerical simulation i'm working with while monitoring Limit Reasons window. Well:
-thermal throttle still happens
-quite often cpu is being power limited but actual power consumption in 20W while the short term PL is set by default to 60 and PL2 to 90
-VR CURRENT limit appears
-i see no gain in performance (same analysis time)
Am i doing something wrong? My questions are
-what is that vr current limit
-is it safe to increase power limits letting thermal throttle do the job if needed
-how can i tune the setup to make the cpu safely run at maximum speed for the time is needed limiting any kind of throttling.
I also bought a stick of thermal grizzly to improve the gain from undervolt