Excellent! The page at askubuntu.com provided me the assistance I needed, and the results are promising:

$ sensors
nouveau-pci-0100
Adapter: PCI adapter
GPU core:     +1.20 V  (min =  +1.20 V, max =  +1.32 V)
fan1:           0 RPM
temp1:        +63.0°C  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +115.0°C, hyst =  +2.0°C)
                       (emerg = +130.0°C, hyst = +10.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +50.0°C  (high = +80.0°C, crit = +100.0°C)
Core 1:       +46.0°C  (high = +80.0°C, crit = +100.0°C)
$
[download]

I'll have this running when I do my next test.