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There can be more than 6 VID pins.

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Jean Delvare committed 2009-01-27 12:59:42 +00:00
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@@ -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: