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Paper Tape
Posts: 1
Registered: ‎10-29-2018
Location: US
Views: 130
Message 1 of 1

X1 Carbon 3rd 5600U thermal throttling on battery / SpeedStep issue - cycles to 0.8 Mhz

When on battery, my X1 Carbon with i7-5600U exhibits really poor performance when loaded. Instead of setting a clock to around the base of 2.6 Ghz and run (if I force it using ThrottleStop to stay there it is happy at around 75 deg C), it constantly cycles between ca 2.9 Ghz and 0.8 Ghz every few seconds.


I have tried different power schemes, reinstall/remove Lenovo Power tools, BIOS settings, ThrottleStop, but I cannot force the SpeedStep to work properly. It is working correctly when plugged-in. Anyone knows how to help it? Thanks! P. 



Capture.PNGModerator edit: Added detail to Subject.

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