IBM 72335LU User Guide - Page 33

Microprocessor-board

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Microprocessor-board LEDs The following illustration shows the LEDs on the microprocessor board. Board fault LED FPGA heartbeat LED BMC heartbeat LED Microprocessor 3 error LED VRM 3 error LED 3 Microprocessor 4 error LED 4 VRM 4 error LED Microprocessor 1 error LED VRM 1 error LED 1 2 Microprocessor 2 error LED VRM 2 error LED Machine check LED Power good LED Scalability enabled LED Table 2 describes the function of each non-light path diagnostics status LED. Table 2. Microprocessor board non-light path diagnostics status LEDs LED Description BMC heartbeat When this LED is flashing, it indicates normal operation of the baseboard management controller. FPGA heartbeat When this LED is flashing, it indicates normal operation of the FPGA (field-programmable gate array) chip. Machine check When this LED is lit continuously, the server is prepared to capture a machine check. When this LED is flashing, the server has captured a machine check. When this LED is off, the server is not prepared to capture a machine check. Chapter 2. Installing optional devices 21

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Microprocessor-board
LEDs
The
following
illustration
shows
the
LEDs
on
the
microprocessor
board.
Microprocessor 3
error LED
Microprocessor 2
error LED
Microprocessor 4
error LED
Microprocessor 1
error LED
VRM 3 error LED
VRM 2 error LED
VRM 4 error LED
VRM 1 error LED
Scalability enabled LED
1
2
3
4
Machine check LED
Power good LED
Board
fault LED
FPGA heartbeat
LED
BMC heartbeat
LED
Table
2
describes
the
function
of
each
non-light
path
diagnostics
status
LED.
Table
2.
Microprocessor
board
non-light
path
diagnostics
status
LEDs
LED
Description
BMC
heartbeat
When
this
LED
is
flashing,
it
indicates
normal
operation
of
the
baseboard
management
controller.
FPGA
heartbeat
When
this
LED
is
flashing,
it
indicates
normal
operation
of
the
FPGA
(field-programmable
gate
array)
chip.
Machine
check
When
this
LED
is
lit
continuously,
the
server
is
prepared
to
capture
a
machine
check.
When
this
LED
is
flashing,
the
server
has
captured
a
machine
check.
When
this
LED
is
off,
the
server
is
not
prepared
to
capture
a
machine
check.
Chapter
2.
Installing
optional
devices
21