Kontron CP6500-V, Руководство пользователя

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CP6500-V System Considerations
ID 28945, Rev. 01 © 2005 Kontron Modular Computers GmbH Page 7 - 5
P R E L I M I N A R Y
2894
5.01.UG.VC.050304/09095
6
7.2.2 Forced Air Flow
When developing applications using the CP6500-V, the system integrator must be aware of the
overall system thermal requirements. System chassis must be provided which satisfy these re-
quirements. As an aid to the system integrator, a characteristics graph is provided for the
CP6500-V.
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 Celeron processor and the Ethernet controller
must be kept below the maximum allowable temperature. This temperature value can be mea-
sured with the onboard remote temperature sensor. To ensure functionality at the maximum
temperature, the BIOS supports a temperature control feature. In instances of overtemperature
the hardware monitor will reduce the processor clock speed to reduce power consumption.
The maximum case temperatures for both Celeron processors is a follows:
• Celeron: 400 MHz: 100 °C
• Celeron: 1 GHz: 100 °C
Figure 7-1: Celeron Temperature Vs. Airspeed Graph with Heat Sink
Warning!
1) T
a
is the initial temperature of the ambient air used for convectional cooling
of the board. In a typical installation where the board is mounted vertically
in a system rack, this would be the temperature of the air measured at the
bottom of the board before the air flows over the board.
2) If the board is to be operated within the shaded area indicated above, it is
imperative to verify that it can be safely operated before the board is inte-
grated in an application system. This will require an empirical thermal
design analysis and verification by the system designer.
Forced Airspeed [m/s]
2)
T max. [°C]
a
1)