I have a HP XW8400 workstation. It came with a single Intel Xeon E5335, and
I correctly got lm_sensors installed so I could see the four processor
temperatures. (The E5335 is a quad xeon chip.)
I just installed a second Xeon E5335. /proc/cpuinfo correctly sees 8
logical CPUs, however lm_sensors is still reporting temperatures for only 4
of those logical CPUs. When I initially installed the machine on a single
Xeon, I got lm_sensors working correctly, but can't figure out now how to
expand it from reporting on 4 CPUs to 8. My experience with lm_sensors is
extremely limited, so any advice would be much appreciated!
I ran sensors-detect, and used all default values. The output was:
----------
Driver `smsc47b397' (should be inserted):
Detects correctly:
* ISA bus address 0x0480 (Busdriver `i2c-isa')
Chip `SMSC SCH5307-NS Super IO' (confidence: 9)
I will now generate the commands needed to load the I2C modules.
To make the sensors modules behave correctly, add these lines to
/etc/modprobe.conf:
#----cut here----
# I2C module options
alias char-major-89 i2c-dev
#----cut here----
To load everything that is needed, add this to some /etc/rc* file:
#----cut here----
# I2C adapter drivers
modprobe i2c-isa
# I2C chip drivers
modprobe smsc47b397
# sleep 2 # optional
/usr/bin/sensors -s # recommended
#----cut here----
----------
None of that is new. /etc/modprobe.conf already had "alias char-major-89
i2c-dev", and /etc/rc.local already had "modprobe i2c-isa", "modprobe
smsc47b397", and "/usr/bin/sensors -s"
lsmod gives:
Module Size Used by
i2c_dev 43849 0
smsc47b397 39749 0
hwmon 36553 1 smsc47b397
i2c_isa 39105 1 smsc47b397
...
i2c_ec 38593 1 sbs
i2c_core 56129 4 i2c_dev,smsc47b397,i2c_isa,i2c_ec
i2cdetect and i2cdump state "Error: No I2C busses found!"
I'm running sensors 2.10.0, libsensors 2.10.0, and kernel 2.6.18-53.1.14.el5
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