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authorSebastian 'Swift Geek' Grzywna <swiftgeek@gmail.com>2020-02-18 20:21:01 +0100
committerSebastian 'Swift Geek' Grzywna <swiftgeek@gmail.com>2020-02-18 23:04:55 +0100
commit27b1099037a29c2a29b27e013d4b4b1d35f5f75a (patch)
tree89e4b05b62697cd7baf499821576cc80e47453fd /docs/install
parent6178f48c2043d7fd85c33f59e4a5a48114a388e4 (diff)
downloadlibrebootfr-27b1099037a29c2a29b27e013d4b4b1d35f5f75a.tar.gz
librebootfr-27b1099037a29c2a29b27e013d4b4b1d35f5f75a.zip
[docs/install/*_external.md] Improve PC3-8500 section and make it consistent
Diffstat (limited to 'docs/install')
-rw-r--r--docs/install/r400_external.md13
-rw-r--r--docs/install/t400_external.md13
-rw-r--r--docs/install/t500_external.md14
-rw-r--r--docs/install/x200_external.md14
4 files changed, 36 insertions, 18 deletions
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: