Hi Guenter, the DMI information is: BOARD_VENDOR = "ASRock" BOARD_NAME = "Z77 Pro4-M" BIOS_VERSION = "P2.00" thx, Erich On Fri, Feb 6, 2015 at 4:23 AM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > On 02/05/2015 12:48 PM, eaut wrote: >> >> Hello, >> >> When I recently started to use UEFI "Ultra-FastBoot" on a ASRock Z77 >> Pro4-M >> board I discovered that fans 3-5 were suddenly missing. After booting in >> Fast or Normal mode the fans were showing up correctly again. So obviously >> a firmware bug. >> >> After some googling and reading of the Nuvoton NCT6776 data sheet I came >> up with the following fix: >> >> # enter NCT6776 "Extended Function Mode" >> isaset -y 0x2e 0x2e 0x87 0x87 >> # select logical device HW-MONITOR >> isaset -y 0x2e 0x2f 0x07 0x0b >> # enable fans 3-5 by setting bits 5-7 in reg 0x30 >> isaset -y 0x2e 0x2f 0x30 0xe0 0xe0 >> >> In the process I have created a small script to list all the NCT6776 fan >> related settings and optionally all NCT6776 GPIO registers. Hopefully it >> will save someone else the time I had to spend on this issue. >> >> https://github.com/eaut/nct6776/blob/master/nct6776-fanpin-info.sh >> >> Since quite a few mainboards seem to have firmware related register >> initialization issues wouldn't it make sense to add an optional module >> parameter to be able to override register settings when loading the >> nct6775 >> driver module? >> >> Example: >> >> ldev reg val mask >> setreg=0x0b,0x30,0xe0,0xe0,next-sequence,... >> > > I would not want to risk that, but I am not adverse to add code which > configures the registers as needed for specific mainboards. > > What is the exact DMI information for your board (Vendor and board name) ? > > Thanks, > Guenter > _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
