[coreboot] Lenovo T420 Question
arian
coreboot at semioptimal.net
Thu Feb 23 02:28:22 CET 2017
Hi
>
> Untested/unknown: If a ivy bridge CPU would work. The OEM bios didn't had support for those.
Ivy Bridge works, have a 3740QM in mine. However, (quoting myself here):
>
> I'm running one albeit with an i7-3740qm - which is too much thermal load, runs up to 2.9 GHz for me reaching 93°C (70K to ambient) with fan set to disengaged, normal auto fan control works and allows up to 2.5 GHz.
>
> with that CPU RAPL does not work, thermald does but out-of-the-box settings gives me less performance than with fix limits, and I'm sure as hell not going to configure something with an xml config file.
>
> used to have a 2720m which worked without any issues AFAIR, but the 3740qm effectively gives me double the cores that are a little faster.
Regards, Arian
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