Fixing CPU Throttle of MacBook Pro Without Battery, on Linux

MacBook Pro (13-inch, Mid 2010) (MacBookPro7,1 F222BEC8) with Intel C2D P8600. The internal battery is missing, and the Apple firmware reduces the CPU frequency as a result. This was easy to workaround on Linux (after a good bit of research) by writing to a MSR, specifically: sudo wrmsr --all '0x1A0' '0x4000850089'

I got most the information from https://github.com/calasanmarko/TurboMac/blob/main/TurboMac/TurboMac.cpp

glxgears speeds up a little bit, but overall system speed improves significantly after doing this! This could likely be automated with a systemd or udev script (was my plan, but I got a battery :p)

The screen on this 2010 MBP is *leagues* better than the one on my Dell Latitude 5591 with Coffee Lake!

You can find this tip, along with hundreds of others on my wiki: https://wiki.realmofespionage.xyz

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