IBM System x3690 X5 - Rear View

Rear view
The following illustration shows the indicators on the rear of the IBM MAX5 for
System x (MAX5) memory expansion module.
Power-on
LED
Locate
LED
System
error
LED
AC LED (green)
DC LED (green)
Power supply
fault (error) LED
QPI
port 1
Power
connectors
EXA port 1
LEDlink
EXA port 2
LEDlink
EXA port 3
LEDlink
EXA
port 1
EXA
port 2
EXA
port 3
QPI
port 2
QPI
port 3
QPI
port 4
v Power-on LED: When this green LED is lit, it indicates that the MAX5 is
powered on. This LED is functionally equivalent to the power-on LED on the
front of the MAX5.
v Locate LED: When this blue LED is lit, it indicates that the command from the
server IMM to the MAX5 expansion module is complete. Use this blue LED to
locate the MAX5 expansion module. The front locate LED also has a button that
you can press to light up other servers or other MAX5 expansion modules to
which the MAX5 is connected to. This LED is functionally equivalent to the
Locate LED on the front of the MAX5.
v System error LED: When this LED is lit, it indicates that a system error has
occurred.
v QPI ports: Insert either a QPI cable or a filler panel in each of these connectors.
Attention: When you handle the QPI cables, take precautions to avoid damaging
the high density interface. Dropping and incorrectly connecting the QPI cables
can damage the high density interface. Store the protective covers that come on
the end of the QPI cables for reuse when you perform maintenance on the
server or MAX5 or when you remove the cables for some reason.
v Power connector: Connect the power cord to this connector.
v AC power LED: Each hot-swap power supply has an ac power LED and a dc
power LED. When the ac power LED is lit, it indicates that sufficient power is
being supplied to the power supply through the power cord. During normal
operation, both the ac and dc power LEDs are lit.
v DC power LED: Each hot-swap power supply has a dc power LED and an ac
power LED. When the dc power LED is lit, it indicates that power supply is
supplying adequate dc power to the MAX5 expansion module. During normal
operation, both the ac and dc power LEDs are lit.
v Power supply fault (error) LED: When this amber LED is lit, it indicates a faulty
hot-swap power supply.
v EXA link LED: When this green LED is lit, it indicates that an EXA link is
functioning.
30 System x3690 X5 Types 7147, 7148, 7149, and 7192: Installation and User's Guide