![Kontron CP6006-SA Скачать руководство пользователя страница 64](http://html1.mh-extra.com/html/kontron/cp6006-sa/cp6006-sa_user-manual_1996551064.webp)
CP6006-SA – User Guide, Rev. 0.5 Preliminary
// 64
5/
Thermal Considerations
The thermal characteristic graphs shown in the following sections are intended to serve as guidance for reconciling
the required computing power with the necessary system volumetric airflow over the ambient temperature.
The
graphs contain two curves representing upper level working points based on different levels of average CPU
utilization. When operating below the corresponding curve, the CPU runs without any intervention of thermal
supervision (the CPU is below 102°C). When operated above the corresponding curve, various thermal protection
mechanisms may take effect resulting in temporarily reduced CPU performance or finally in an emergency stop in
order to protect the CPU and the chipset from thermal destruction. In real applications this means that the board can
be operated temporarily at a higher ambient temperature or at a reduced flow rate and still provide some margin for
temporarily requested peak performance before thermal protection will be activated.
An airflow of 2.0 m/s to 3.0 m/s is a typical value for a standard Kontron ASM rack. For other racks or housings the
available airflow will differ. The maximum ambient operating temperature must be determined for such
environments.
How to read the diagram
Select a specific CPU and choose a specific working point. For a given flow rate there is a maximum airflow input
temperature (= ambient temperature) provided. Below this operating point, thermal supervision will not be activated.
Above this operating point, thermal supervision will become active protecting the CPU from thermal destruction. The
minimum airflow rate provided must be more than the value specified in the diagram.
Volumetric flow rate
The volumetric flow rate refers to an airflow through a fixed cross-sectional area (i.e. slot width x depth. The
volumetric flow rate is specified in m³/h (cubic-meter-per-hour) or cfm (cubic-feet-per-minute) respectively.
Conversion: 1 cfm = 1.7 m³/h; 1 m³/h = 0.59 cfm
Airflow
At a given cross-sectional area and a required flow rate, an average, homogeneous airflow speed can be calculated
using the following formula:
Airflow = Volumetric flow rate / area.
The airflow is specified in m/s (meter-per-second) or in fps (feet-per-second) respectively.
Conversion: 1 fps = 0.3048 m/s; 1 m/s = 3.28 fps
The following figures illustrate the thermal operational limits of the CP6006(X)-SA taking into consideration power
consumption vs. ambient air temperature vs. airflow rate.
The CP6006(X)-SA must be operated within the thermal operational limits indicated below.
Содержание CP6006-SA
Страница 1: ... USER GUIDE www kontron com 1 CP6006 SA User Guide Rev 0 5 Preliminary Doc ID To be Determined ...
Страница 19: ...CP6006 SA User Guide Rev 0 5 Preliminary www kontron com 19 Figure 4 4 HP CP6006X SA Front Panel Top View ...
Страница 20: ...CP6006 SA User Guide Rev 0 5 Preliminary www kontron com 20 Figure 5 4 HP CP6006 X SA Front Panel Bottom View ...
Страница 72: ...CP6006 SA User Guide Rev 0 5 Preliminary www kontron com 72 7 uEFI BIOS t b d ...