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NIC1: Indicates network activity on GLAN1 when flashing.
HDD: Indicates IDE channel activity on the hard drive when flashing.
Power: Indicates power is being supplied to the system power supply units. This
LED should normally be illuminated when the system is operating.
Overheating
There are several possible responses if the system overheats.
Overheat Temperature Setting
Some backplanes allow the overheat temperature to be set at 45, 50, or 55 degrees
by changing a jumper setting. For more information, consult the backplane user
manual on the Supermicro website.
Responses
If the server overheats
1. Use the LEDs to determine the nature of the overheating condition.
2. Confirm that the chassis covers are installed properly.
3. Check the routing of the cables and make sure all fans are present and operating
normally.
4. Verify that the heatsinks are installed properly.
Chapter 3 System Interface
3-3
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