System Fan Replacement - Lenovo ThinkSystem SR550 Maintenance Manual

Figure 94. Serial port module installation
Step 3. Connect the cable of the serial port module to serial-port-module connector on the system board.
For the location of the serial-port-module connector, see "System board components" on page 27.
After installing the serial port module:
1. Complete the parts replacement. See "Complete the parts replacement" on page 164.
2. To enable the serial port module, do one of the following according to the installed operating system:
• For Linux operating system:
Open the ipmitool and enter the following command to disable the Serial over LAN (SOL) feature:
-I lanplus -H IP -U USERID -P PASSW0RD sol deactivate
• For Microsoft Windows operating system:
a. Open the ipmitool and enter the following command to disable the SOL feature:
-I lanplus -H IP -U USERID -P PASSW0RD sol deactivate
b. Open Windows PowerShell and enter the following command to disable the Emergency
Management Services (EMS) feature:
Bcdedit /ems no
c. Restart the server to ensure that the EMS setting takes effect.

System fan replacement

Use this information to remove and install a system fan.
S033
CAUTION:
Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with
metal, which might result in spattered metal, burns, or both.
.
Chapter 3 Hardware replacement procedures
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