From c218c9a8854d01994f529becf35306240e4aeb2f Mon Sep 17 00:00:00 2001 From: "Mark D. Studebaker" Date: Sat, 15 May 2004 16:59:08 +0000 Subject: [PATCH] add more info on accuracy git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2535 7894878c-1315-0410-8ee3-d5d059ff63e0 --- doc/fan-divisors | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/doc/fan-divisors b/doc/fan-divisors index cb5d18a2..e1916bd0 100644 --- a/doc/fan-divisors +++ b/doc/fan-divisors @@ -76,6 +76,12 @@ readings and the accuracy of the readings. The actual formula is RPM = (60 * 22500) / (count * divisor) +The readings are most accurate when the fan speed is low +(i.e., close to the minimum possible RPM reading). +As fan speed gets closer to the maximum possible RPM reading, +the reading becomes quite inaccurate. Fortunately, most computer +fans do not approach 1,000,000 RPM ! + Fan readings 2X too high ------------------------ @@ -96,4 +102,4 @@ section of /etc/sensors.conf: ------------------ -Copyright (c) 2000,2001 Mark D. Studebaker +Copyright (c) 2000-2004 Mark D. Studebaker