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System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system
board.
For more information about the system-board LEDs, see the Problem Determination
and Service Guide on the IBM xSeries Documentation CD.
Installation guidelines
Before you install options, read the following information:
v Read the safety information that begins on page v, the guidelines in "Working
v Observe good housekeeping in the area where you are working. Place removed
v If you must start the server while the cover is removed, make sure that no one is
v Do not attempt to lift an object that you think is too heavy for you. If you have to
v Make sure that you have an adequate number of properly grounded electrical
inside the server with the power on" on page 20, and "Handling static-sensitive
devices" on page 21. This information will help you work safely.
covers and other parts in a safe place.
near the server and that no tools or other objects have been left inside the
server.
lift a heavy object, observe the following precautions:
– Make sure that you can stand safely without slipping.
– Distribute the weight of the object equally between your feet.
– Use a slow lifting force. Never move suddenly or twist when you lift a heavy
object.
– To avoid straining the muscles in your back, lift by standing or by pushing up
with your leg muscles.
outlets for the server, monitor, and other devices.
System fan 3 error (LED2)
System fan 1 error (LED3)
Standby power
good (LED1)
Mini-BMC heartbeat
error (LED10)
VRD good
(LED11)
System fan 2
error (LED13)
DIMM 4 error (LED14)
DIMM 3 error (LED15)
DIMM 2 error (LED16)
DIMM 1 error (LED17)
Chapter 2. Installing options
19
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