IBM x3400 Installation Guide - Page 105

System-board

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System-board LEDs The following illustration shows the LEDs on the system board. You might have to refer to this illustration when solving problems with the server. DIMM error LEDs 1 through 12 Microprocessor mismatch LED DIMM LEDs 6 12 5 11 4 10 39 28 17 Slot 1 error LED Slot 2 error LED Slot 3 error LED Slot 4 error LED Slot 5 error LED Slot 6 error LED Microprocessor 1 error LED Microprocessor 2 error LED VRM error LED Battery LED BMC heartbeat LED ServeRAID error LED Use the system-board LEDs to diagnose system errors. An error LED is lit to indicate a problem with a specific component. After a problem is corrected, the LED will not be lit the next time that the server is restarted; if the problem remains, the LED will be lit again. For additional information, see the Problem Determination and Service Guide on the IBM System x3400 Documentation CD. Chapter 5. Solving problems 91

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System-board
LEDs
The
following
illustration
shows
the
LEDs
on
the
system
board.
You
might
have
to
refer
to
this
illustration
when
solving
problems
with
the
server.
1
2
3
4
5
6
7
8
9
10
11
12
DIMM LEDs
Slot 1
error LED
Slot 2
error LED
Slot 3
error LED
Slot 4
error LED
Slot 5
error LED
Slot 6
error LED
Microprocessor
mismatch
LED
DIMM
error LEDs
1 through 12
Microprocessor 1
error LED
Microprocessor 2
error LED
VRM error
LED
BMC heartbeat
LED
ServeRAID
error LED
Battery LED
Use
the
system-board
LEDs
to
diagnose
system
errors.
An
error
LED
is
lit
to
indicate
a
problem
with
a
specific
component.
After
a
problem
is
corrected,
the
LED
will
not
be
lit
the
next
time
that
the
server
is
restarted;
if
the
problem
remains,
the
LED
will
be
lit
again.
For
additional
information,
see
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x3400
Documentation
CD.
Chapter
5.
Solving
problems
91