1.  Download and install Lenovo XClarity Essentials OneCLI.
To download Lenovo XClarity Essentials OneCLI, go to the following site:
https://datacentersupport.lenovo.com/solutions/HT116433
2.  Run the following command to enable Secure Boot:
OneCli.exe  config  set  SecureBootConfiguration.SecureBootSetting  Enabled                     
--bmc  <userid>:<password>@<ip_address>
where: 
–  <userid>:<password> are the credentials used to access the BMC (Lenovo XClarity Controller 
interface) of your server. The default user ID is USERID, and the default password is PASSW0RD 
(zero, not an uppercase o)
–  <ip_address> is the IP address of the BMC.
For more information about the Lenovo XClarity Essentials OneCLI sseett command, see:
http://sysmgt.lenovofiles.com/help/topic/toolsctr_cli_lenovo/onecli_r_set_command.html
Top cover replacement
Follow instructions in this section to remove and install the top cover.
Remove the top cover
Follow instructions in this section to remove the top cover.
S014 
CAUTION: 
Hazardous voltage, current, and energy levels might be present. Only a qualified service technician is 
authorized to remove the covers where the label is attached. 
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. 
About this task
Attention: 
•  Read “Installation Guidelines” on page 121 and “Safety inspection checklist” on page 122 to ensure that 
you work safely.
•  Power off the server and peripheral devices and disconnect the power cords and all external cables. See 
“Power off the server” on page 14.
Chapter 4. Hardware replacement procedures 225