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Atlas 300 User Guide 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Over Temperature Protection

Over Temperature Protection

The Atlas 300 supports the detection of the junction temperature of key components, such as the Ascend 310 and memory chip, through out-of-band and in-band channels, and also supports the detection of the entire board temperature. The log of the Atlas 300 records information such as the maximum temperature, the count of over temperature, and the total over temperature time.

The Atlas 300's main component Ascend 310 and its storage chip support a maximum air intake vent temperature of 55°C (131°F). Sufficient air volume for heat dissipation and proper temperature control policies are required to ensure reliable operations. Therefore, the Atlas 300 uses the following alarming mechanism:

  • Severity 1: major alarm. The major alarm threshold of the Ascend 310 chip is 101°C (213.8°F), and the major alarm threshold of the storage chip is 90°C (194°F). When the chip temperature or operating temperature reaches this value, the firmware will restrict the device performance.
  • Severity 2: critical alarm. The critical alarm threshold of the Ascend 310 chip is 106°C (222.8°F), and the critical alarm threshold of the storage chip is 100°C (212°F). When the chip temperature or operating temperature reaches the value of this parameter, the Atlas 300 powers off.
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Updated: 2019-07-29

Document ID: EDOC1100079295

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