Cisco UCS C480 M5 Assembly Instructions

Maintaining the Server

This chapter contains the following sections:

•Status LEDs and Buttons, on page 1

•Preparing For Component Installation, on page 6

•Serviceable Component Locations, on page 11

•Replacing Components Inside the Main Chassis, on page 17

•Replacing Components Inside a CPU Module, on page 67

•Replacing Components Inside an I/O Module, on page 90

•Recycling the PCB Assembly (PCBA), on page 101

•Service DIP Switches, on page 111

Status LEDs and Buttons

This section contains information for interpreting LED states.

Front-Panel LEDs

Figure 1: Front Panel LEDs

Maintaining the Server

Table 1: Front Panel LEDs, Definition of States

StatesLED Name

• Off—There is no AC power to the server.

•Amber—The server is in standby power mode. Power

is supplied only to the Cisco IMC and some

motherboard functions.

• Green—The server is in main power mode. Power is

supplied to all server components.

Power button/LED1

• Off—The unit identification function is not in use.

• Blue, blinking—The unit identification function is

activated.

Unit identification2

• Green—The server is running in normal operating

condition.

• Amber, steady—The server is in a degraded

operational state (minor fault). For example:

• Power supply redundancy is lost.

• CPUs are mismatched.

• At least one CPU is faulty.

• At least one DIMM is faulty.

•At least one drive in a RAID configuration failed.

•Amber, blinking—The server is in a critical fault state.

For example:

• Boot failure

• Fatal processor and/or bus error detected

• Over-temperature condition

System health3

• Green—All power supplies are operating normally.

• Amber, steady—One or more power supplies are in

a degraded operational state.

• Amber, blinking—One or more power supplies are

in a critical fault state.

Power supply status4

Maintaining the Server

Front-Panel LEDs

• Green—All fan modules are operating properly.

• Amber, steady—Fan modules are in a degraded state.

One fan module has a fault.

• Amber, blinking—Two or more fan modules have

faults.

Fan status5

• Off—The Ethernet LOM port link is idle.

• Green—One or more Ethernet LOM ports are

link-active, but there is no activity.

• Green, blinking—One or more Ethernet LOM ports

are link-active, with activity.

Network link activity6

•Green—The server is operating at normal temperature.

No error conditions detected.

• Amber, steady—One or more temperature sensors

exceeded a warning threshold.

• Amber, blinking—One or more temperature sensors

exceeded a critical non-recoverable threshold.

Temperature status7

• Off—The hard drive is operating properly.

• Amber—Drive fault detected.

• Amber, blinking—The device is rebuilding.

• Amber, blinking with one-second interval—Drive

locate function activated in the software.

SAS/SATA drive fault

NVMe solid state drive (SSD) drive tray

LEDs have different behavior than

SAS/SATA drive trays.

Note

SAS

• Off—There is no hard drive in the hard drive tray (no

access, no fault).

• Green—The hard drive is ready.

•Green, blinking—The hard drive is reading or writing

data.

SAS/SATA drive activity LED9

SAS

• Off—The drive is not in use and can be safely

removed.

• Green—The drive is in use and functioning properly.

• Green, blinking—the driver is initializing following

insertion or the driver is unloading following an eject

command.

• Amber—The drive has failed.

• Amber, blinking—A drive Locate command has been

issued in the software.

NVMe SSD drive fault

NVMe solid state drive (SSD) drive tray

LEDs have different behavior than

SAS/SATA drive trays.

Note

NVMe

Maintaining the Server

Front-Panel LEDs

• Off—No drive activity.

• Green, blinking—There is drive activity.

NVMe SSD activity9

NVMe

• Green—The CPU module is correctly seated and

receiving power.

• Off—There is no power to the CPU module or it is

incorrectly seated.

CPU module power status10

• Off—There is no fault with the CPUs or DIMMs on

the CPU module board.

• Amber—There is a fault with a CPU or DIMM on the

CPU module board, such as an over-temperature

condition.

CPU module fault11

• Off—The drive is idle.

• Green, steady—The drive is spinning up a disk.

• Green, blinking—The drive is accessing data.

DVD drive activity

(optional DVD module not shown)

Rear-Panel LEDs

Figure 2: Rear Panel LEDs

Table 2: Rear Panel LEDs, Definition of States

StatesLED Name

Maintaining the Server

Rear-Panel LEDs

• Off—Link speed is 100 Mbps.

• Amber—Link speed is 1 Gbps.

• Green—Link speed is 10 Gbps.

1-Gb/10-Gb Ethernet link speed (on both LAN1 and

LAN2)

These ports auto-negotiate link speed based on the

link-partner capability.

• Off—No link is present.

• Green—Link is active.

• Green, blinking—Traffic is present on the active link.

1-Gb/10-Gb Ethernet link status (on both LAN1 and

LAN2)

• Off—Link speed is 10 Mbps.

• Amber—Link speed is 100 Mbps.

• Green—Link speed is 1 Gbps.

1-Gb Ethernet dedicated management link speed3

• Off—No link is present.

• Green—Link is active.

• Green, blinking—Traffic is present on the active link.

1-Gb Ethernet dedicated management link status4

• Off—The unit identification function is not in use.

• Blue, blinking—The unit identification function is

activated.

Rear unit identification5

AC power supplies:

• Off—No AC input (12 V main power off, 12 V

standby power off).

• Green, blinking—12 V main power off; 12 V standby

power on.

• Green, solid—12 V main power on; 12 V standby

power on.

• Amber, blinking—Warning threshold detected but 12

V main power on.

• Amber, solid—Critical error detected; 12 V main

power off (for example, over-current, over-voltage,

or over-temperature failure).

Power supply status (one LED each power supply unit)6

Internal Diagnostic LEDs

The system has the following internal fault LEDs to help with identifying a failing component:

• Each chassis fan module has a fault LED on top of the module. These fan LEDs operate only when the

system is in standby power mode.

Maintaining the Server

Internal Diagnostic LEDs

• The CPU module has internal fault LEDs for CPUs and DIMMs on the CPU module board. POST and

runtime error detection routines are stored in on-board registers. The contents of the registers are preserved

for a limited time by a supercap voltage source.

To operate the LEDs, press switch SW1 on the board after the CPU module is removed from the chassis.

Figure 3: Internal Diagnostic LED Locations

DIMM fault LEDs (one next to each DIMM socket

on the board)

• Amber—DIMM has a fault.

• Off—DIMM is OK.

3CPU fault LEDs (one behind each CPU socket on

the board).

• Amber—CPU has a fault.

• Off—CPU is OK.

-Switch SW1

SW1 is labeled, " PRESS HERE TO SEE

FAULTS".

Preparing For Component Installation

This section includes information and tasks that help prepare the server for component installation.

Maintaining the Server

Preparing 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 (supplied with replacement CPUs for heatsink removal)

• #1 Phillips-head screwdriver (for M.2 SSD 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.

• Emergency shutdown—Press and hold the Power button for 4 seconds to force the main power off and immediately

enter standby mode.

Step 3 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the

power supplies in the server.

Maintaining the Server

Required Equipment For Service Procedures

Shutting Down Using The Cisco IMC GUI

You must log in with user or admin privileges to perform this task.

Step 1 In the Navigation pane, click the Server tab.

Step 2 On the Server tab, click Summary.

Step 3 In the Actions area, click Power Off Server.

Step 4 Click OK.

The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber

Power button/LED.

Step 5 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the

power supplies in the server.

Shutting Down Using The Cisco IMC CLI

You must log in with user or admin privileges to perform this task.

Step 1 At the server prompt, enter:

Example:

server# scope chassis

Step 2 At the chassis prompt, enter:

Example:

server/chassis# power shutdown

The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber

Power button/LED.

Step 3 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the

power supplies in the server.

Shutting Down Using The Cisco UCS Manager Equipment Tab

You must log in with user or admin privileges to perform this task.

Step 1 In the Navigation pane, click Equipment.

Step 2 Expand Equipment > Rack Mounts > Servers.

Step 3 Choose the server that you want to shut down.

Step 4 In the Work pane, click the General tab.

Step 5 In the Actions area, click Shutdown Server.

Step 6 If a confirmation dialog displays, click Yes.

Maintaining the Server

Shutting Down Using The Cisco IMC GUI

The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber

Power button/LED.

Step 7 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the

power supplies in the server.

Shutting Down Using The Cisco UCS Manager Service Profile

You must log in with user or admin privileges to perform this task.

Step 1 In the Navigation pane, click Servers.

Step 2 Expand Servers > Service Profiles.

Step 3 Expand the node for the organization that contains the service profile of the server that you are shutting down.

Step 4 Choose the service profile of the server that you are shutting down.

Step 5 In the Work pane, click the General tab.

Step 6 In the Actions area, click Shutdown Server.

Step 7 If a confirmation dialog displays, click Yes.

The operating system performs a graceful shutdown and the server goes to standby mode, which is indicated by an amber

Power button/LED.

Step 8 If a service procedure instructs you to completely remove power from the server, disconnect all power cords from the

power supplies in the server.

Removing the Server Top Cover

Step 1 Remove the top cover:

a) If the cover latch is locked, use a screwdriver to turn the lock 90-degrees counterclockwise to unlock it.

b) Lift on the end of the latch that has the green finger grip. The cover is pushed back to the open position as you lift

the latch.

c) Lift the top cover straight up from the server and set it aside.

Step 2 Replace the top cover:

a) With the latch in the fully open position, place the cover on top of the server about one-half inch (1.27 cm) behind

the lip of the front cover panel. The opening in the latch should fit over the peg that sticks up from the fan tray.

b) Press the cover latch down to the closed position. The cover is pushed forward to the closed position as you push

down the latch.

c) If desired, lock the latch by using a screwdriver to turn the lock 90-degrees clockwise.

Maintaining the Server

Shutting Down Using The Cisco UCS Manager Service Profile

Figure 4: Removing the Top Cover

Serial number location on label3Top cover1

Locking cover latch2

Serial Number Location

The serial number for the server is printed on a label on the top of the server, near the front.

Hot Swap vs Hot Plug

Some components can be removed and replaced without shutting down and removing power from the server.

This type of replacement has two varieties: hot-swap and hot-plug.

• Hot-swap replacement—You do not have to shut down the component in the software or operating

system. This applies to the following components:

• SAS/SATA hard drives

• SAS/SATA solid state drives

• Cooling fan modules

• Power supplies (when redundant as 2+2 or 1+1)

Maintaining the Server

Serial Number Location

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