[lm-sensors] How to get lm-sensors to see eight processors instead of four (just installed second quad-core Xeon)

[Michael Darling]

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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