Sun Oracle 4540 - Phaser Copystation, Service Manual, Page: 171 / 264

Chapter 3 Maintaining the Sun Fire X4500 and X4540 Servers 3-51
Off: The DIMM is operating properly.
On (amber): The DIMM is faulty and must be replaced.
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CPU fault LEDs on CPU0 or CPU1:
Off: The CPU is operating properly.
On (amber): The CPU is faulty and must be replaced.
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The Battery fault LED:
Off: The battery is operating properly.
On (amber): The battery is faulty and must be replaced.
Note – The CPU fault and DIMM LEDs continue to indicate a failure until the
system is powered up. The Battery LED continues to indicate a failure until the
service processor is started.
To replace the CPU:
1. Power off the server.
See Section 3.7.1, “Powering Off the Server” on page 3-10 .
2. Remove the cable management arm.
See one of the following depending on your system:
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Sun Fire X4500/X4540 Installation Guide
■
Sun X4500-J Slide Rail Installation Guide (X4500)
■
“Early-Production Slide Rail and CMA Information” on page G-1 (X4500)
3. Remove the system controller.
See “To Remove the System Controller (CRU)” on page 3-70 .
The CPUs are located inside the system controller.