Hardware Description
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Control Panel LEDs
The control panel located on the front of the chassis has several LEDs. These LEDs provide you with
critical information related to different parts of the system. This section explains what each LED
indicates when illuminated and any corrective action you may need to take.
Power Fail
Indicates a power supply module has failed. The second power supply module will take the load and
keep the system running but the failed module will need to be replaced. Refer to the section titled
„Removing/Replacing the Power Supply” for details on replacing the power supply. This LED should
be off when the system is operating normally.
Information LED
This LED will be blue when the UID function has been activated. When this LED ashes red, it indicates
a fan failure. When red continuously it indicates an overheat condition, which may be caused by
cables obstructing the air ow in the system or the ambient room temperature being too warm.
Check the routing of the cables and make sure all fans are present and operating normally. You
should also check to make sure that the chassis covers are installed. Finally, verify that the heatsinks
are installed properly. This LED will remain flashing or on as long as the indicated condition exists.
NIC1
Indicates network activity on the LAN1 port when active.
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