FusionServer X6000 V6 Server
Technical White Paper
3 System Architecture
2021-07-16
17
Figure 3-4
Point-to-point cabling
In NC-SI mode, the management network cable can be used as a service network cable and connected to
a service network port.
Fan modules
The server node iBMCs and fan management board work together to monitor and manage fan
modules.
⚫
The server node iBMC determines a proper speed based on speed adjustment algorithms
and delivers the speed to the fan management board in the middle module to control the
fan speed. The fan management board detects the operating status of the fan modules
through the rotation speed feedback signals, and reports to server node iBMCs for the
fan module health management.
⚫
The fan management board of the middle module provides four independent pulse-width
modulation (PWM) control signals for controlling the fan speed and eight TACH signals
for detecting the fan speed.
PSUs
The server node iBMCs and fan management board work together to monitor and manage
PSUs.
⚫
Each server node provides an I2C bus to manage all PSUs. The iBMC of each server
node supports input power queries, installation status detection, and PSU alarm
reporting.
⚫
The iBMC of each server node and the CPLD of the fan management board in the
middle module provide the GPIO to detect the presence and PWROK of PSUs.
Summary of Contents for X6000
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