3-3
Chapter 3 System Interface
Power: Indicates power is being supplied to the system power supply units. This
LED should normally be illuminated when the system is operating.
HDD: Indicates IDE channel activity on the hard drive when ashing.
NIC1: Indicates network activity on GLAN1 when ashing.
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. Conrm 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.