TW200702693A - Method for automatically detecting a type of a CPU fan - Google Patents

Method for automatically detecting a type of a CPU fan

Info

Publication number
TW200702693A
TW200702693A TW094124076A TW94124076A TW200702693A TW 200702693 A TW200702693 A TW 200702693A TW 094124076 A TW094124076 A TW 094124076A TW 94124076 A TW94124076 A TW 94124076A TW 200702693 A TW200702693 A TW 200702693A
Authority
TW
Taiwan
Prior art keywords
rpm
cpu fan
cpu
fan
type
Prior art date
Application number
TW094124076A
Other languages
Chinese (zh)
Inventor
Yu-Chen Chang
Original Assignee
Hon Hai Prec Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW094124076A priority Critical patent/TW200702693A/en
Publication of TW200702693A publication Critical patent/TW200702693A/en

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Abstract

The present invention relates to a method for automatically detecting a type of a CPU (Central Processing Unit) fan. The method includes the steps of: setting the CPU fan to run at a full speed; obtaining revolutions of the CPU fan by a sensor during a fixed period; calculating an RPM (Revolutions Per Minute) of the CPU fan as a first RPM; setting the CPU fan to run at any speed under the full duty; waiting for a while; obtaining revolutions of the CPU fan by the sensor during the fixed period and calculating an RPM of the CPU fan as a second RPM; determining whether the second RPM is less than the first RPM; if the second RPM is less than the first RPM, identifying the type of the CPU fan as a four-pin CPU fan; if the second RPM is not less than the first RPM, identifying the type of the CPU fan as a three-pin CPU. Using this invention can detect the type of the CPU fan and improve the lifetime of the CPU fan.
TW094124076A 2005-07-15 2005-07-15 Method for automatically detecting a type of a CPU fan TW200702693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW094124076A TW200702693A (en) 2005-07-15 2005-07-15 Method for automatically detecting a type of a CPU fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094124076A TW200702693A (en) 2005-07-15 2005-07-15 Method for automatically detecting a type of a CPU fan

Publications (1)

Publication Number Publication Date
TW200702693A true TW200702693A (en) 2007-01-16

Family

ID=57910502

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094124076A TW200702693A (en) 2005-07-15 2005-07-15 Method for automatically detecting a type of a CPU fan

Country Status (1)

Country Link
TW (1) TW200702693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108963A (en) * 2009-12-24 2011-06-29 和硕联合科技股份有限公司 Fan detection device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108963A (en) * 2009-12-24 2011-06-29 和硕联合科技股份有限公司 Fan detection device and method
CN102108963B (en) * 2009-12-24 2014-06-18 和硕联合科技股份有限公司 Fan detection device and method

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TW200702693A (en) Method for automatically detecting a type of a CPU fan