The computing nodes and fan modules of Huawei blade servers (such as E9000) must be configured in strict accordance with fixed principles to avoid overheating alarms and forced power-off of computing nodes due to insufficient cooling capacity of the chassis. Which of the following principles are wrong?

The computing nodes and fan modules of Huawei blade servers (such as E9000) must be configured in strict accordance with fixed principles to avoid overheating alarms and forced power-off of computing nodes due to insufficient cooling capacity of the chassis. Which of the following principles are wrong?
A . When half-width computing nodes or full-width computing nodes are fully configured, fan modules need to be fully configured
B. When the number of half-width computing nodes <= 8 or the number of full-width computing nodes <= 4, the following slots must be equipped with fan modules: 1, 2, 3, 4, 7, 8, 9, 10, 13, 14
C. The half-width computing nodes must be closely configured according to the chassis slots from bottom to top, and the configuration sequence is: 1, 9, 2, 10, 3, 11, 4, 12, 5, 13, 6, 14, 7, 15, 8, 16
D. Full-width computing nodes must be closely configured according to the chassis slots from bottom to top, and the configuration sequence is: 1, 2, 3, 4, 5, 6, 7,

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Answer: A