On Tue, 12 Apr 2011 19:02:19 +0200, Ian Dobson wrote: > Hi, > > -------------------------------------------------- > From: "Mike Campin" <lm_sensors@xxxxxxxxxxxxxxxxxxx> > Sent: Sunday, April 10, 2011 6:04 PM > To: <lm-sensors@xxxxxxxxxxxxxx> > Subject: NCT6776 global registers 0x1c=0 and 0x24=0x5c onASRock > Extreme4 > > > Hi, > > > > Only 2 of the 5 fans are showing up on my ASRock P67 Extreme4 motherboard. > > It due to the NCT6776 global configuration register 0x1c and 0x24 values. > > The fans work if I modify these registers prior to loading the w83627ehf > > driver. > > > > My question is where are these registers initialized? Should I ask ASRock > > to fix the BIOS? > > > > isadump -y -k 0x87,0x87 0x2e 0x2f > > > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > > 00: ff ff 00 ff ff ff ff 02 ff ff ff ff ff ff ff ff > > 10: ff ff ff ff ff ff ff ff ff ff f8 0e 00 00 ff ff > > 20: c3 33 ff 00 5c 00 00 98 00 ff 20 00 80 00 00 01 > > 30: 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > > > > isaset -y -f 0x2e 0x87 > > isaset -y -f 0x2e 0x87 > > isaset -y 0x2e 0x2f 0x1c 0x3 > > isaset -y 0x2e 0x2f 0x24 0x1c > > > > Thanks, Mike > > > > -- > > Mike Campin > > lm_sensors@xxxxxxxxxxxxxxxxxxx > > > > _______________________________________________ > > lm-sensors mailing list > > lm-sensors@xxxxxxxxxxxxxx > > http://lists.lm-sensors.org/mailman/listinfo/lm-sensors > > ASRock designed the board, so they should setup the hardware monitoring chip > correctly. Allowing users to change the chip configuration is a really bad > idea, as many of the pins can have different functionality/electrical > spcifications depending on the config. Setting up a pin incorrectly could > blow the chip (Configuring a pin so that it's a source that's connected to > an unprotected/limited sink for example). > > So ASRock should fix the BIOS. Seconded. But before flaming Asrock, two things worth checking: * Availability of a BIOS update fixing the issue. * Options in the BIOS to enable/disable the monitoring of specific fans. I can imagine that the BIOS skips the configuration steps for fans for which monitoring was disabled (although that would probably mean more code than just doing it unconditionally...) -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
