Lenovo 2593, 2594, 2579, 2577, 2595, 2592 manual Keyboard, mouse, and USB device problems

Symptom Action

4. (Trained service technician only) Replace the system board.

Keyboard, mouse, and USB device problems

Follow the suggested actions for the corresponding symptom in the order in which they are listed until the problem is solved. If none of these actions solve the problem, see “Troubleshooting procedure” on page 157 for the subsequent steps you should check after using the information in this topic.

Symptom		Action
All or some keys on the keyboard do not work.	1. Ensure that:
		• The USB keyboard cable is securely connected
		to a USB connector on the server. If the USB
		keyboard is connected to a USB hub, disconnect
		the keyboard from the hub and connect it directly
		to the server.
		• No keys are stuck.
		• The USB controller is enabled in the Setup Utility
		program. See “Using the Setup Utility program”
		on page 53.
	2.	Restart the server.
	3.	Replace the keyboard.
The mouse or pointing device does not work.	1. Ensure that:
		• The mouse or pointing device cable is securely
		connected to the server. If the USB mouse or
		pointing device is connected to a USB hub,
		disconnect the mouse or pointing device from the
		hub and connect it directly to the server.
		• The mouse or pointing device is clean and no dust
		accumulates.
		• The device drivers are installed correctly.
		• The USB controller is enabled in the Setup Utility
		program. See “Using the Setup Utility program”
		on page 53.
	2.	Restart the server.
	3. Replace the mouse or pointing device.
A USB device does not work.	1. Ensure that:
		• The USB cable is securely connected to the server.
		If the USB device is connected to a USB hub,
		disconnect the device from the hub and connect
		it directly to the server.
		• The device drivers are installed correctly.
		• The USB controller is enabled in the Setup Utility
		program. See “Using the Setup Utility program”
		on page 53.
	2.	Restart the server.
	3. Replace the USB device.

162ThinkServer User Guide