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Server System SR1680MV Service Guide 113
System Cooling Fans Do Not Rotate Properly
If the system cooling fans are not operating properly, it is an indication of possible system
component failure.
Check the following:
• Is the power-on light lit? If not, see “Power Light Does Not Light”.
• Are any other control panel LEDs lit?
• Have your fans speeded up in response to an overheating situation?
• Have your fans speeded up in response to a fan that has failed?
• Are the fan power connectors properly connected to the server board?
• Are the power supply cables properly connected to the server board?
• Are there any shorted wires caused by pinched-cables or have power connector
plugs been forced into power connector sockets the wrong way?
Cannot Connect to a Server
• Make sure the network cable is securely attached to the correct connector at the
system back panel.
• Try a different network cable.
• Make sure you are using the correct and the current drivers. See “Additional
Information and Software” for a link to the current drivers.
• Make sure the driver is loaded and the protocols are bound.
• Make sure the hub port is configured for the same duplex mode as the network
controller.
• Make sure the correct networking software is installed.
• If you are directly connecting two servers (without a hub), you will need a crossover
cable.
• Check the network controller LEDs next to the NIC connectors.