From 17211f11b64220d4c7bd263b97830fde2175f28d Mon Sep 17 00:00:00 2001 From: Denis 'GNUtoo' Carikli Date: Tue, 17 Sep 2019 17:42:56 +0200 Subject: x200_external.md: Clarify Intel Turbo Memory The driver is free software and contains no code to load any nonfree firmware, so if it has been blacklisted it might not be because of freedom issues, but probably because of reliability issues. Signed-off-by: Denis 'GNUtoo' Carikli --- docs/install/x200_external.md | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/docs/install/x200_external.md b/docs/install/x200_external.md index 327d8b88..98577028 100644 --- a/docs/install/x200_external.md +++ b/docs/install/x200_external.md @@ -216,12 +216,20 @@ Intel Turbo Memory ================== Some X200 devices were sold with Intel Turbo Memory installed in the top-most -mini PCI-e slot. This has been [shown to be -ineffective](http://www.anandtech.com/show/2252) at disk caching or battery -saving in most use cases. While there are [Linux -drivers](https://github.com/yarrick/turbomem) available, it is blacklisted in -at least GNU+Trisquel, and possibly other free operating systems. It should -probably be removed. +mini PCI-e slot. + +If you have one installed, you should probably remove it as it mostly likely +brings no benefits, while having many issues: +- It has been [shown to be + ineffective](http://www.anandtech.com/show/2252) at disk caching or battery + saving in most use cases. Having it installed might lead to more + battery consumption. +- Using it will most likely lead to data loss because with its + [driver](https://github.com/yarrick/turbomem), + "data cannot be written/read back reliably". The driver development + has also stopped. +- It might also be a security risk as it may have access to the system + RAM through the PCIe bus. Memory ====== -- cgit v1.2.3-70-g09d2 From a28bca00f96428e254bad12f4db896ab7367c9c2 Mon Sep 17 00:00:00 2001 From: Denis 'GNUtoo' Carikli Date: Tue, 17 Sep 2019 17:59:21 +0200 Subject: x200_external.md: Memory: improve wording Signed-off-by: Denis 'GNUtoo' Carikli --- docs/install/x200_external.md | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/docs/install/x200_external.md b/docs/install/x200_external.md index 98577028..0b574a68 100644 --- a/docs/install/x200_external.md +++ b/docs/install/x200_external.md @@ -235,11 +235,9 @@ 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. - -NOTE: according to users repors, non matching pairs (e.g. 1+2 GiB) might -work in some cases. +(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. Make sure that the RAM you buy is the 2Rx8 density. -- cgit v1.2.3-70-g09d2