L450 blocked to 0.77 GHz processor when it is on battery and can not downgrade the BIOS

Hello

It seems that the CPU of my L450 is blocked to 0.77 GHz speed when it is running on battery power and no matter how heavy the load, the CPU speed does not fit on the rise, unless I plug in the AC power cord.

This makes the laptop a bit useless on the battery when you do something time CPU.

This seems to be the unusual question, based on the quick searchand possibly related to the BIOS. I would try to downgrade from 1.16-> 1.15 or 1.12, but I always get the error "Failed to secure authentication of Flash", after you run the flash program and rebooted (when flashing the BIOS should start).

I turned off in the BIOS the option 'Prevention of RollBack Secure' settings, so I guess that's not the question for not having to downshift.

Does anyone else have this problem (with the speed of the CPU limitation or decommissioning of the BIOS)?

I tried to change options in plan powers the window, like 'The Maximum processor state', 'Intel CCMP energy efficiency Settings. "

I am running Windows 10, if any relevant information.

OK, think about it.

The fix was to disconnect the battery and the power cord for one minute. After that, the CPU is scaling its speed again normally.

Good thing that this laptop model has a removable battery, I guess...

I'd like to, I would have thought this before going through the demotion to 8.1 Windows, since the I suspected it could be a bug with Windows 10 or some of its pilots.

I think that this problem was caused by my recent update BIOS of 1.12 to 1.16, but it's really just a guess.

Tags: ThinkPad Notebooks

Similar Questions

Maybe you are looking for