Lenovo 4105, 4157, 4217 manual Diagnostic programs

Symptom	Action
The USB Keyboard does not	Verify that:
work.	• The computer is turned on.
	• The keyboard is securely connected to a USB connector on the front or rear
	of the computer.
	• No keys are stuck.
	If you cannot correct the problem, have the computer serviced. Refer to the safety
	and warranty information that is provided with your computer for a list of service
	and support telephone numbers.
The mouse does not work. The	Verify that:
computer does not respond to
the mouse.	• The computer is turned on.
	• The mouse is securely connected to the mouse connector on the computer.
	• The mouse is clean. Refer to “Cleaning an optical mouse” on page 30 for further
	information.
	If you cannot correct the problem, have the computer serviced. Refer to the safety
	and warranty information that is provided with your computer for a list of service
	and support telephone numbers.
The operating system will not	Verify that:
start.	• There is no diskette in the diskette drive.
	• The startup sequence includes the device where the operating system resides.
	Usually, the operating system is on the hard disk drive. For more information,
	see “Selecting a startup device” on page 19.
	If you cannot correct the problem, have the computer serviced. Refer to the safety
	and warranty information that is provided with your computer for a list of service
	and support telephone numbers.
The computer beeps multiple	Verify that no keys are stuck down.
times before the operating
system starts.	If you cannot correct the problem, have the computer serviced. Refer to the safety
	and warranty information that is provided with your computer for a list of service
	and support telephone numbers.

Diagnostic programs

Diagnostic programs are used to test hardware components of your computer. Diagnostic programs can also report operating-system-controlled settings that interfere with the correct operation of your system.

Depending on the preinstalled operating system and the date when your computer was manufactured, Lenovo provides one of the following diagnostic solutions:

•Lenovo Solution Center (used when the Windows operating system is running normally)

•Lenovo ThinkVantage Toolbox (used when you are running the Windows operating system)

•PC-Doctor for Rescue and Recovery (used when your Windows operating system does not start)

Notes:

1.You can also download the PC-Doctor for DOS diagnostic program from http://www.lenovo.com/support. See “PC-Doctor for DOS” on page 30 for detailed information.

28ThinkStation User Guide