I have edited the sensor3.conf file & now my sensors looks like this:

dean@linux:~/Desktop$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:       +40.0°C  (crit = +60.0°C)

w83627dhg-isa-0290
Adapter: ISA adapter
VCore:       +1.26 V  (min =  +1.09 V, max =  +1.62 V)
in1:         +6.86 V  (min =  +6.12 V, max = +10.72 V)
AVCC:        +3.31 V  (min =  +2.30 V, max =  +3.47 V)
3VCC:        +3.31 V  (min =  +3.14 V, max =  +3.47 V)
in4:         +1.28 V  (min =  +1.20 V, max =  +1.58 V)
in5:         +1.55 V  (min =  +1.42 V, max =  +1.58 V)
in6:         +5.86 V  (min =  +4.76 V, max =  +6.25 V)
VSB:         +3.31 V  (min =  +3.14 V, max =  +3.47 V)
VBAT:        +3.04 V  (min =  +2.64 V, max =  +3.47 V)
Case Fan:   3013 RPM  (min =  803 RPM, div = 16)
CPU Fan:    2556 RPM  (min =  803 RPM, div = 16)
Aux Fan:    1110 RPM  (min =  811 RPM, div = 32)
fan4:       1622 RPM  (min =  803 RPM, div = 16)
fan5:          0 RPM  (min =    0 RPM, div = 128)
CPU Temp:    +53.5°C  (high = +127.0°C, hyst =  +0.0°C)  sensor = transistor
M/B Temp:    +38.0°C  (high = +127.0°C, hyst =  +0.0°C)  sensor = thermistor

coretemp-isa-0000
Adapter: ISA adapter
Core 0:      +61.0°C  (high = +80.0°C, crit = +100.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Core 1:      +64.0°C  (high = +80.0°C, crit = +100.0°C)

coretemp-isa-0002
Adapter: ISA adapter
Core 2:      +65.0°C  (high = +80.0°C, crit = +100.0°C)

coretemp-isa-0003
Adapter: ISA adapter
Core 3:      +66.0°C  (high = +80.0°C, crit = +100.0°C)

Core readings are with a Q9300 O/C to 3GHZ under full load (SETI@Home
running). I am including the Fan conf page from the Owners manual for
the 750i.