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clarify on the release announcement that quad core T500 requires hw mods

hslick-master
Leah Rowe 2021-05-23 18:12:12 +01:00
parent 70fa9e2f33
commit ea4b7a743e
1 changed files with 7 additions and 0 deletions
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site/news/libreboot20210522.md
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@ -347,6 +347,13 @@ The following patch in coreboot allowed that (shortly after the Libreboot
Quad-core CPU mod on T500/T400/W400 etc
=======================================
NOTE: Hardware modifications are required to make quad-core CPUs work. You have
to cut/disable a few signals and solder 1 wire. Look online for ThinkPad T500
quad core mod. Alongside this hardware mod, the boot firmware also must be
configured to allow for quad core CPUs. This new Libreboot release has such
configuration already enabled, so if you've already performed the modifications
to your hardware then it should Just Work.
The option `MAX_CPUS=4` is now the default, on these machines in coreboot:
* ThinkPad R400