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FusionServer Pro XH321 V5 Server Node V100R005 Maintenance and Service Guide 07

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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).


The basic input/output system (BIOS) is the most basic software loaded to a computer hardware system. The BIOS provides an abstraction layer for the operating system (OS) and the hardware to interact with the keyboard, display, and other input/output (I/O) devices.

The BIOS data is stored on the Serial Peripheral Interface (SPI) flash memory. The BIOS performs a power-on self-test (POST), initializes CPU and memory, checks the I/O and boot device, and finally boots the OS. The BIOS also provides the advanced configuration and power interface (ACPI) and hot swap.

The Huawei Purley-based server is developed based on Insyde code base and uses a proprietary BIOS. It provides a variety of in-band and out-of-band configuration functions as well as high scalability, and supports customization.

For details about the BIOS, see Huawei Server Purley Platform BIOS Parameter Reference.

Figure 12-1 BIOS in the system
Updated: 2019-12-25

Document ID: EDOC1000183891

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