Lenovo 3724, 3836, 3809, 3826, 3824, 3808, 3815, 3817 manual Sp Bus

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the Hardware Maintenance Manual to determine which components are customer replaceable units (CRUs) and which components are field replaceable units (FRUs).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Lit EasyLED
diagnostics LED with
the system-error or
information LED also
lit	Description	Action
Service processor bus	The IMM detects an internal error.	1. Disconnect the server from ac power; then,
(SP BUS)
		reconnect the server to power and restart the
		server.
		2. Update the IMM firmware.
	1. The following table lists the EasyLED diagnostics LEDs, the problems that they
	indicate, and actions to solve the problems.
	Look at the system service label on the top of the server, which gives an
	overview of internal components that correspond to the LEDs on the EasyLED
	diagnostic panel. This information can often provide enough information to
	diagnose the error.
	2. Remove the server cover and look inside the server for lit LEDs. Certain
	components inside the server have LEDs that are lit to indicate the location of a
	problem (See “System-board LEDs” on page 33).
	The following illustration shows the LEDs on the system board.

Chapter 4. Server controls, LEDs, and power 25