1 .\" $NetBSD: amdtemp.4,v 1.3 2008/11/20 10:09:06 jnemeth Exp $
3 .\" Copyright (c) 2008 Christoph Egger
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27 .\" $FreeBSD: src/share/man/man4/coretemp.4,v 1.4 2007/10/15 20:00:19 netchild Exp $
34 .Nd AMD CPU on-die digital thermal sensor
36 .Cd "amdtemp* at pci? dev ? function ?"
40 driver provides support for the on-die digital thermal sensor present
41 on AMD K8, AMD Barcelona, AMD Phenoms, and AMD Griffin CPUs.
43 These sensors were officially introduced in AMD K8 Revision F processors,
44 and provide 0.5 degC accuracy.
45 Precision was improved in Revision
46 G chips, which provide two more bits for 0.25 degC steppings.
48 has two temperature sensors, and there are up to two cores per CPU socket.
50 AMD Barcelona, AMD Phenom, and AMD Griffin provide 0.125 degC accuracy
51 and provide one temperature sensor for each CPU socket.
55 driver reports temperatures through the
58 .Bl -column "Sensor " "Units" "Typical" -offset indent
59 .It Sy "Sensor " Ta Sy "Units" Ta Sy "Typical Use"
60 .It Li "CPUN sensor0" Ta "uK" Ta "cpuN temperature"
69 driver first appeared in
75 The driver has been renamed with support for newer AMD CPUs.
81 .An Constantine A. Murenin Aq cnst@openbsd.org
82 whilst at the University of Waterloo.