This is a discussion on Intel Pentium II 'Deschutes' temperature - Hardware ; My motherboard, which has an Intel Pentium II Deschutes 333Mhz assembled, provides some monitoring data which I'm able to read using lm-sensors - fans, voltages, and temperatures. As the first values I got for CPU temperature were lower than the ...
My motherboard, which has an Intel Pentium II Deschutes 333Mhz
assembled, provides some monitoring data which I'm able to read using
lm-sensors - fans, voltages, and temperatures.
As the first values I got for CPU temperature were lower than the BIOS
ones, I tried setting a formula to compute the value. Unfortunately I
don't remember where did I got it from.
,---- /etc/sensors.conf, CPU temp formula
| chip "lm75-*"
| # In case a lm75 is used together with a lm78, the lm78 temp sensor will
| # generally show the M/B temperature while the lm75 temp sensor will
| # show
| # the CPU temperature.
| label temp "CPU Temp"
| compute temp @*1.2+13,(@-13)/1.2
(The machine has also a lm78 chip.)
The Intel documentation refers two thermal limits: 65º (max. TPlate) and
75º (max. TCover) [pag. 43,
I wonder what's the normal temperature range for this processor, and if
the formula I picked is suitable for this hardware setup, as I'm afraid
the CPU temperature is too high:
| Adapter: SMBus PIIX4 adapter at 5f00
| CPU Temp: +59.8ºC (high = +74.8ºC, hyst = +65.2ºC)
(This is a 'working, but doing nothing heavy' temperature. (e.g.)
Compiling some not-small application will raise it a bit. And, btw, it's
Just in case there's some interesting information hidden here:
,---- sensors output for lm78
| Adapter: ISA adapter
| VCore 1: +2.02 V (min = +1.94 V, max = +2.10 V)
| +3.3V: +3.33 V (min = +3.14 V, max = +3.47 V)
| +5V: +5.05 V (min = +4.76 V, max = +5.24 V)
| +12V: +11.98 V (min = +11.37 V, max = +12.59 V)
| -12V: -11.35 V (min = -12.63 V, max = -11.29 V)
| -5V: -4.84 V (min = -5.25 V, max = -4.74 V)
| CPU fan: 5273 RPM (min = 3013 RPM, div = 8)
| fan2: 2556 RPM (min = 2008 RPM, div = 8)
| MB temp: +36.0°C (high = +75°C, hyst = +65°C)
| vid: +3.40 V
And about the chip (northbridge, I presume):
00:00.0 Host bridge: Intel Corporation 440LX/EX - 82443LX/EX Host bridge
Nuno J. Silva (aka njsg)
LEIC student at Instituto Superior Técnico
"The day Microsoft makes something that doesn't suck is
probably the day they start making vacuum cleaners"
-- Ernst Jan Plugge