From 27b1099037a29c2a29b27e013d4b4b1d35f5f75a Mon Sep 17 00:00:00 2001 From: Sebastian 'Swift Geek' Grzywna Date: Tue, 18 Feb 2020 20:21:01 +0100 Subject: [docs/install/*_external.md] Improve PC3-8500 section and make it consistent --- docs/install/r400_external.md | 13 +++++++++---- docs/install/t400_external.md | 13 +++++++++---- docs/install/t500_external.md | 14 +++++++++----- docs/install/x200_external.md | 14 +++++++++----- 4 files changed, 36 insertions(+), 18 deletions(-) (limited to 'docs') diff --git a/docs/install/r400_external.md b/docs/install/r400_external.md index 19f673a6..c226c3aa 100644 --- a/docs/install/r400_external.md +++ b/docs/install/r400_external.md @@ -335,11 +335,16 @@ Not to be confused with wifi (wifi is fine). Memory ====== -You need DDR3 SODIMM PC3-8500 RAM installed, in matching pairs -(speed/size). Non-matching pairs won't work. You can also install a -single module (meaning, one of the slots will be empty) in slot 0. +In DDR3 machines with Cantiga (GM45/GS45/PM45), northbridge requires sticks +that will work as PC3-8500 (faster PC3/PC3L sticks can work as PC3-8500). +Non-matching pairs may not work. Single module (meaning, one of the slots +will be empty) will currently only work in slot 0. -Make sure that the RAM you buy is the 2Rx8 density. +NOTE: according to users reports, non matching pairs (e.g. 1+2 GiB) might +work in some cases. + +Make sure that the RAM you buy is the 2Rx8 configuration when buying 4GiB sticks +(In other words: maximum of 2GiB per rank, 2 ranks per card). [This page](http://www.forum.thinkpads.com/viewtopic.php?p=760721) might be useful for RAM compatibility info (note: coreboot raminit is diff --git a/docs/install/t400_external.md b/docs/install/t400_external.md index 362b2243..fe54af48 100644 --- a/docs/install/t400_external.md +++ b/docs/install/t400_external.md @@ -328,11 +328,16 @@ Not to be confused with wifi (wifi is fine). Memory ====== -You need DDR3 SODIMM PC3-8500 RAM installed, in matching pairs -(speed/size). Non-matching pairs won't work. You can also install a -single module (meaning, one of the slots will be empty) in slot 0. +In DDR3 machines with Cantiga (GM45/GS45/PM45), northbridge requires sticks +that will work as PC3-8500 (faster PC3/PC3L sticks can work as PC3-8500). +Non-matching pairs may not work. Single module (meaning, one of the slots +will be empty) will currently only work in slot 0. -Make sure that the RAM you buy is the 2Rx8 density. +NOTE: according to users reports, non matching pairs (e.g. 1+2 GiB) might +work in some cases. + +Make sure that the RAM you buy is the 2Rx8 configuration when buying 4GiB sticks +(In other words: maximum of 2GiB per rank, 2 ranks per card). [This page](http://www.forum.thinkpads.com/viewtopic.php?p=760721) might be useful for RAM compatibility info (note: coreboot raminit is diff --git a/docs/install/t500_external.md b/docs/install/t500_external.md index fc66387c..9433bd18 100644 --- a/docs/install/t500_external.md +++ b/docs/install/t500_external.md @@ -354,12 +354,16 @@ Not to be confused with wifi (wifi is fine). Memory ====== -DDR3 SO-DIMM sticks will work at PC3-8500 clock and voltage, so make sure that -timings of sticks are matched while they operate at its frequency. -Non-matching pairs won't work. You can also install a -single module (meaning, one of the slots will be empty) in slot 0. +In DDR3 machines with Cantiga (GM45/GS45/PM45), northbridge requires sticks +that will work as PC3-8500 (faster PC3/PC3L sticks can work as PC3-8500). +Non-matching pairs may not work. Single module (meaning, one of the slots +will be empty) will currently only work in slot 0. -Make sure that the RAM you buy has 2Rx8 arrangement when buying 4GiB modules. +NOTE: according to users reports, non matching pairs (e.g. 1+2 GiB) might +work in some cases. + +Make sure that the RAM you buy is the 2Rx8 configuration when buying 4GiB sticks +(In other words: maximum of 2GiB per rank, 2 ranks per card). [This page](http://www.forum.thinkpads.com/viewtopic.php?p=760721) might be useful for RAM compatibility info (note: coreboot raminit is diff --git a/docs/install/x200_external.md b/docs/install/x200_external.md index 0b574a68..5c466b86 100644 --- a/docs/install/x200_external.md +++ b/docs/install/x200_external.md @@ -234,12 +234,16 @@ brings no benefits, while having many issues: Memory ====== -You need DDR3 SODIMM PC3-8500 RAM installed, in matching pairs -(speed/size) as some non-matching pairs are known not to work. -You can also install a single module (meaning, one of the -slots will be empty) in slot 0. +In DDR3 machines with Cantiga (GM45/GS45/PM45), northbridge requires sticks +that will work as PC3-8500 (faster PC3/PC3L sticks can work as PC3-8500). +Non-matching pairs may not work. Single module (meaning, one of the slots +will be empty) will currently only work in slot 0. -Make sure that the RAM you buy is the 2Rx8 density. +NOTE: according to users reports, non matching pairs (e.g. 1+2 GiB) might +work in some cases. + +Make sure that the RAM you buy is the 2Rx8 configuration when buying 4GiB sticks +(In other words: maximum of 2GiB per rank, 2 ranks per card). In this photo, 8GiB of RAM (2x4GiB) is installed: -- cgit v1.2.3-70-g09d2