Preparing For Component Installation
This section includes information and tasks that help prepare the server for component installation.
Required Equipment For Service Procedures
The following tools and equipment are used to perform the procedures in this chapter:
•
T-30 Torx driver (supplied with replacement CPUs for heatsink removal)
•
#1 flat-head screwdriver (used during CPU or heatsink replacement)
•
#1 Phillips-head screwdriver (for M.2 SSD and intrusion switch replacement)
•
Electrostatic discharge (ESD) strap or other grounding equipment such as a grounded mat
Shutting Down and Removing Power From the Server
The server can run in either of two power modes:
• Main power mode—Power is supplied to all server components and any operating system on your drives
can run.
• Standby power mode—Power is supplied only to the service processor and certain components. It is
safe for the operating system and data to remove power cords from the server in this mode.
After a server is shut down to standby power, electric current is still present in the server. To completely
remove power, you must disconnect all power cords from the power supplies in the server, as directed in
the service procedures.
You can shut down the server by using the front-panel power button or the software management interfaces.
Caution
Shutting Down Using the Power Button
Step 1
Check the color of the Power button/LED:
• Amber—The server is already in standby mode and you can safely remove power.
• Green—The server is in main power mode and must be shut down before you can safely remove power.
Step 2
Invoke either a graceful shutdown or a hard shutdown:
To avoid data loss or damage to your operating system, you should always invoke a graceful shutdown of
the operating system.
Caution
• Graceful shutdown—Press and release the Power button. The operating system performs a graceful shutdown and
the server goes to standby mode, which is indicated by an amber Power button/LED.
Cisco UCS C240 M5 Server Installation and Service Guide
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Maintaining the Server
Preparing For Component Installation