Supermicro 2020A-8R, User Manual

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3-2
A+ Server 2020A-8R User's Manual
3-3 Control Panel LEDs
The control panel located on the front of the chassis has fi ve 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 ac-
tion 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 Chapter 6 for details on replacing the power
supply. This LED should be off when the system is operating normally.
Overheat/Fan Fail: When this LED fl ashes, it indicates a fan failure. When
on continuously it indicates an overheat condition, which may be caused by cables
obstructing the airfl 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 (see Chapter
5). This LED will remain fl ashing or on as long as the indicated condition exists.
NIC1: Indicates network activity on the LAN1 port when fl ashing.