From ea4b7a743e7a1abdcc913ad4832e9a21ffeae11f Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Sun, 23 May 2021 18:12:12 +0100 Subject: [PATCH] clarify on the release announcement that quad core T500 requires hw mods --- site/news/libreboot20210522.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/site/news/libreboot20210522.md b/site/news/libreboot20210522.md index 2a498f0..988bb46 100644 --- a/site/news/libreboot20210522.md +++ b/site/news/libreboot20210522.md @@ -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