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Running a Low-Level Format
Do the following to format the hard disk.
Warning: Make sure the drive address to be formatted is
correct. This procedure erases all information on the disk.
1. Power off the computer.
2. Insert the ThinkPad hardware maintenance
diskette Ver 1.30 or later into diskette drive A and
power on the computer.
3. Select Format the hard disk from the main menu.
4. Select the drive from the menu.
5. Follow the instructions on the screen.
Checking the PC Test Card LED
The green LED on the PC test card turns on when the
PCMCIA test is running. If the LED does not turn on,
check that the card is installed correctly by reseating the
card. If it still does not turn on after it is reseated, try
using another slot for the test. If the LED still does not
turn on and the test fails, replace the FRU shown by the
diagnostic error code.
Fn Key Combinations
The following table shows the Fn key and function key
combinations and their corresponding functions.
The Fn key works independently from the operating
system. The operating system obtains the status through
the system management interface to control the system.
Fn + Description
F1 Reserved
F2 Fuel-Gauge display on or off
F3 Standby mode invocation
F4 Suspend mode invocation
F5 Reserved
F6 Reserved
F7 Switching between LCD and CRT display
F8 Reserved
F9 Reserved
F10 Reserved
F11 Switching power management mode
(High Power, Intelligent, and Economy)
F12 Hibernation invocation
ThinkPad 560, 560E (2640) 153