Timeline for How to fool power supply that it has DC fan installed
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Mar 13, 2018 at 3:35 | comment | added | user105652 | It likely has magnetic or optical feedback of RPM's, so you will not be able to cheat it. | |
| Mar 12, 2018 at 12:31 | answer | added | Youssef Sifi | timeline score: 0 | |
| Mar 12, 2018 at 11:46 | history | edited | JRE | CC BY-SA 3.0 |
added 2 characters in body
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| Mar 12, 2018 at 11:40 | comment | added | TonyM | As @AndrewMorton says, many of my UEFIs (BIOSs in olden days) have an option to turn off temperature controlled fan operation and run the fans flat out all the time. Does this control extend to the PSU fans? I know the PSU has a pseudo-I2C link to the motherboard, so the interface for such control is there. | |
| Mar 12, 2018 at 11:33 | comment | added | Andrew Morton | Is there an option in the BIOS to run the fans at 100% speed all the time? You'll still need a four-wire fan so that the fan monitor can detect that it is running. | |
| Mar 12, 2018 at 11:15 | review | Close votes | |||
| Mar 13, 2018 at 3:36 | |||||
| Mar 12, 2018 at 11:10 | answer | added | Bimpelrekkie | timeline score: 2 | |
| Mar 12, 2018 at 10:56 | comment | added | Pono | The original fan model is W40S12BS4A5-07 nidec.com/en-NA/product/fan/category/F010/G030/P2000076 | |
| Mar 12, 2018 at 10:53 | comment | added | Pono | The thing is I don't want the PSU to manage the RPM. The PSUs are getting pretty hot and I want the fans to be running at 100% RPM all the time. | |
| Mar 12, 2018 at 10:51 | comment | added | Jeroen3 | You can emulate the open drain RPM output. eg: with a 555 or Arduino. Or maybe remove the protection circuity. We need more info (eg: original fan type) But it's less of a hassle to just install the correct fans. | |
| Mar 12, 2018 at 10:45 | history | asked | Pono | CC BY-SA 3.0 |