From cf09a7e43ab19550941cbf2c5f89cd33719ae966 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Tue, 27 Jan 2009 12:59:42 +0000 Subject: [PATCH] There can be more than 6 VID pins. git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5626 7894878c-1315-0410-8ee3-d5d059ff63e0 --- doc/vid | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/doc/vid b/doc/vid index 565774d3..26d9fba6 100644 --- a/doc/vid +++ b/doc/vid @@ -12,12 +12,14 @@ output to a certain voltage. These pins are also connected to the sensor chip so that the VID setting can be read back by applications. -There are generally 5 VID pins. Recent motherboards may use 6 pins. -The VID codes are defined by Intel in documents titled -"VRM X.X DC-DC Converter Design Guidelines". +There are between 4 and 8 VID pins (the more recent the CPU, the more +numerous the VID pins.) The VID codes are defined by Intel in documents +titled "VRM X.X DC-DC Converter Design Guidelines". (VRM = Voltage Regulator Module), or -"Voltage Regulator-Down (VRD) 10.0 Design Guide". +"Voltage Regulator-Down (VRD) X.X Design Guide". These documents are available at http://developer.intel.com. +There are equivalent documents for AMD processors (look for a table +named "VID Code Voltages" in processor specifications.) There are several different VRM document versions. The common versions are as follows: