System Considerations
CP605
Page 6 - 6
© 2004 Kontron Modular Computers GmbH
ID 25095, Rev. 07
2509
5.07.UG.VC.041005/14244
8
The values have been measured using typical applications running under Windows® 2000. In
worst case situations, the values vary and the temperature range must be reduced. In all situ-
ations the maximum case temperature of the Pentium 4 processor and Mobile Pentium 4 pro-
cessor must be kept below the maximum allowable temperature. This temperature value can
be measured with the onboard remote temperature sensor. To ensure functionality at the max-
imum temperature, the BIOS supports a temperature control feature. In instances of overtem-
perature the hardware monitor will reduce the processor clock speed to reduce power
consumption.
The maximum case temperatures for both processor types is a follows:
• Pentium 4-M:
all versions: 100 °C
•
Pentium 4:
2 GHz:
68 °C
•
Pentium 4:
2.4 GHz:
71 °C
Figure 6-1: Mobile Pentium 4-M Temperature Vs. Airspeed Graph
Note ...
For higher temperatures it is highly recommended to use only the Pentium 4-M
processor family. These processors have a lower power consumption and sup-
port higher case temperatures (100°C) and also support the SpeedStep II
technology. With the Speedstep feature the mobile processor can be dynami-
cally switched between the low power mode (with 1.2 GHz standard perfor-
mance) and the high performance mode (2.2 GHz).
1) By fixed airspeed of n.n, the maximum al-
lowable ambient air temperature is:
2) By a maximum ambient air temperature
of nn°C, the minimum airspeed is:
