Lenovo 3797 manual Solving problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom	Action
The USB mouse or USB	1.	Make sure that:
pointing device does not work.
		v The mouse is compatible with the server. See http://www.lenovo.com/
		thinkserver.
		v The mouse or pointing-device USB cable is securely connected to the
		server, and the device drivers are installed correctly.
		v The server and the monitor are turned on.
	2.	If a USB hub is in use, disconnect the USB device from the hub and connect it
		directly to the server.
	3.	Move the mouse or pointing device cable to another USB connector.
	4.	Replace the following components one at a time, in the order shown, restarting
		the server each time:
		a. Mouse or pointing device
		b. (Only if the problem occurred with a front USB connector) Internal USB
		cable
		c. (Trained service technician only) System board

Chapter 7. Solving problems 133