IBM ThinkPad 340 Series Hardware Maintenance Manual page 168

Running the Low-Level Format
Perform the following steps to format the hard disk:
Warning: All data and formatting on the disk will be
destroyed and cannot be recovered. Have the user
make a backup copy of all information on the hard disk
that should be saved. Make sure that a bootable diskette
is available. Make sure that the drive address to be
formatted is correct.
Use either the TrackPoint III or the cursor movement keys
to interact with the tests. When asked for an "OK"
response, press Enter or select the OK button.
1. Power-off the computer, and then power it on again.
2. Press the F1 key any time while the POST memory
count is proceeding. When the memory test is
completed, the Easy-Setup screen appears.
3. Select Test and press Enter.
4. Press Ctrl+A to enter advanced diagnostics.
5. Press Ctrl+F. The Format icon appears at the top of
the advanced diagnostics screen.
6. Select the Format icon and press Enter.
7. Select the hard disk to be formatted and press Enter.
8. A confirmation screen appears, showing the number
of cylinders, heads, and sectors on the hard disk.
9. Press Esc to exit the low-level format screen without
formatting the hard disk.
10. Press Enter to begin the low-level format of the hard
disk. When the low-level format is completed, the
advanced diagnostics screen is displayed.
11. When you restart the computer, a graphic message is
displayed at the end of POST, requesting that you
insert a bootable diskette into the diskette drive and
press F1 to resume operation.
Reading the PC Test Card LED
The green LED on a PC test card (JEIDA/PCMCIA wrap
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 the card is reseated and you are using one PC test
card, try using the other slot for the test. If you are using
two cards, try swapping the cards in the slots. If the LED
still does not turn on and the test fails, replace the FRU
shown in the diagnostics error code.
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