GA-Z77X-UD3H: lm_sensors on Linux (modprobe it87 freezes computer) and fan speed

[VaCa]

Hello, I have 2 questions regarding sensors/fans:

1) How can I read temperatures from this motherboard on Linux? If I load the it87 driver, the whole computer freezes. SysRQ (from USB) doesn't respond either.

[    5.969626] ACPI Warning: 0x000000000000f040-0x000000000000f05f SystemIO conflicts with Region \_SB_.PCI0.SBUS.SMBI 1 (20120320/utaddress-251)
[    5.969631] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver

The thermal driver only shows these temperatures:
acpitz-virtual-0
Adapter: Virtual device
temp1:        +27.8°C  (crit = +106.0°C)
temp2:        +29.8°C  (crit = +106.0°C)

2) I have a case fan connected to SYSFAN4. Even when I configure the BIOS with "Silent", it runs at ~1450rpm (maybe caused by PCH temperature ~60C). Is it possible to make it run at ~500rpm?

[alex80386]

I'm not in front of my Linux pc at the moment (mine is a GA-Z77-D3H), so I'm not sure if I can test the it87 driver or not...
Which Linux distribution and what Linux kernel?

[alex80386]

So with my GA-Z77-D3H I just tried this.

Code: [Select]

# modprobe it87
# lsmod
Module                  Size  Used by
it87                   30651  0
hwmon_vid              12388  1 it87
....
....

In /var/log/messages...

Code: [Select]

Jul 10 20:51:17 debian-i5 kernel: [ 2974.768080] it87: Found IT8728F chip at 0xa30, revision 1
Jul 10 20:51:17 debian-i5 kernel: [ 2974.768097] it87: Beeping is supported
No freezing or anything like that noticed.

Distribution is debian 6.0 using linux kernel image 3.2.0-0.bpo.2-amd64 from debian backports.
Debian kernel 3.2.0-0.bpo.2 source package appears to be using linux kernel 3.2.20-1 source.

> How can I read temperatures from this motherboard...

I notice I also have these modules loaded...

Code: [Select]

# lsmod
Module                  Size  Used by
....
....
fan                    12674  0
thermal                17330  0
thermal_sys            17992  4 video,processor,fan,thermal
Perhaps these can be used somehow?

> case fan connected to SYSFAN4...

I don't have a SYSFAN4 so can't help with that one.

[VaCa]

Thank you for your reply! I use Gentoo with Linux 3.4.4. Should have mentioned!

I installed Debian 6.0 with latest 3.2 kernel from backports. In Debian I see the same messages as you, but it still freezes:

Code: [Select]

# modprobe it87
it87: Found IT8728F chip at 0xa30, revision 1
it87: Beeping is supported
* here it froze*