[coreboot - Bug #642] (New) x201t Turbo boost not working, CPU running hot

Janez Novak via coreboot <[email protected]> Sun, 03 May 2026 10:07:16 +0000
Newsgroups gmane.linux.bios
Message-ID <[email protected]>
Issue #642 has been reported by Janez Novak.

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Bug #642: x201t Turbo boost not working, CPU running hot
https://ticket.coreboot.org/issues/642

* Author: Janez Novak
* Status: New
* Priority: Normal
* Category: chipset configuration
* Target version: main
* Start date: 2026-05-03
* Affected versions: main
* Affected hardware: Lenovo X201 Tablet
* Affected OS: All
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Hello, i installed Coreboot on my x201t but turbo boost isn’t working and cpu won’t go past 2.1 GHz. My processor is an i7 640LM. Something i also noticed is that the system runs hotter with coreboot than with stock bios but i don’t know what’s causing that.



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