Hardware pinouts information and cables schemes

Motherboard 4 pin CPU PWM fan connector specification users reports and reviews

[Discuss at the forum] [SUBMIT new pinout]

There are 23 approved reports in our database

Date Content
Revision
User opinion Comment Approved by moderator?
2008-09-14 09:08:03rev. 2CORRECTAPPROVED
2008-10-15 23:24:55rev. 2CORRECTAPPROVED
2008-10-27 13:04:54rev. 2CORRECTFor better quality, you might include pulse frequency and min/max width. Schema of the connector would be good too.APPROVED
2010-02-25 20:55:42rev. 2CORRECTAPPROVED
2012-05-04 09:27:42rev. 2CORRECTAPPROVED
2012-09-24 06:53:25rev. 2CORRECTthis information is correct. thanks for such nice infoAPPROVED
2013-03-03 02:33:27rev. 3CORRECTThe PWM signal from the motherboard sources 5V during the "on" state of the pulse, otherwise it's pulled to ground. The tacho signal from the fan sinks to ground for every revolution, the input on the motherboard is pulled high.APPROVED
2013-05-22 00:49:01rev. 3CORRECTAPPROVED
2014-07-16 10:45:24rev. 4CORRECTnoAPPROVED
2015-04-09 18:08:17rev. 4ERROR FIXEDthis is not right APPROVED
2015-09-03 12:59:08rev. 4CORRECTAPPROVED
2016-05-30 06:38:53rev. 4CORRECTnoneAPPROVED
2017-02-24 12:53:24rev. 4CORRECTAPPROVED
2018-05-13 01:17:13rev. 4CORRECTAPPROVED
2018-06-08 15:37:49rev. 4CORRECTAPPROVED
2018-07-13 08:30:02rev. 4CORRECTAPPROVED
2018-09-28 20:14:21rev. 4CORRECTAPPROVED
2018-10-15 09:45:00rev. 4CORRECTAPPROVED
2018-12-02 13:46:39rev. 4CORRECTAPPROVED
2019-04-17 15:50:50rev. 4CORRECTAPPROVED
2019-07-23 18:57:37rev. 4CORRECTThere is a very very small chance that the yellow wire is actually red. While it is noted as usual in the table, I would personally change it to "yellow (sometimes red)". The only other change I would make is to the picture, maybe add a second 4 pin variant which has the key at pins 1 and 3, alongside the picture with the keys at pins 1 and 4. Just my opinion that it may help with novices.APPROVED
2019-08-31 12:27:53rev. 4CORRECTAPPROVED
2019-09-17 12:26:17rev. 4CORRECTAPPROVED


History of users contributions

Date Content
Revision
Author Comment
2015-04-15 16:01:44rev. 4putin

Back to Motherboard 4 pin CPU PWM fan connector pinout


Pinouts.ru > Pinout of Motherboard PWM Fan Connector
should be correct