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Symptom / Error FRU / Action in Sequence
861X
(Pointing device error when
TrackPoint III is enabled.)
8611 System bus
error–I/F between
8042 and IPDC.
8612 TrackPoint error.
8613 System board or
TrackPoint error.
1. Reseat the keyboard
connector.
2. Reseat the keyboard
TrackPoint III cable on
the keyboard card.
See “1070 Keyboard
Unit” on page 139.
3. Keyboard
4. External Mouse
5. System Board
I9990301
I9990302
I9990305
I9990301 Hard disk error.
I9990302 Invalid hard
disk boot
record.
I9990305 No bootable
device.
1. Reseat the boot
device.
2. Check the startup
sequence for the
correct boot device.
3. Check that the
operating system has
no failure and is
installed correctly.
I9990303
(Bank 2 flash ROM check
sum error.)
1. System Board
Other codes not listed
above
1. Go to “Undetermined
Problems” on
page 116.
Beep Symptoms
Symptom / Error FRU / Action in Sequence
Continuous beeps. System Board
One beep and a
blank, unreadable, or
flashing LCD.
1. Reseat the LCD connector.
2. LCD Assembly
3. System Board
One beep, and the
message “Unable to
access boot source.”
1. Boot device
2. System Board
One long beep, two
short beeps, and a
blank or unreadable
LCD.
1. System Board
2. LCD Assembly
One long beep
followed by four short
beeps each time the
power switch is
operated.
(System cannot
power on because of
low battery voltage.)
Connect the AC Adapter or
install a fully charged battery.
One beep every
second.
(System shuts down
because of low
battery voltage.)
Connect the AC Adapter or
install a fully charged battery
(allows system to complete
shutdown before changing the
battery).
110 IBM Mobile Systems - ThinkPad HMM Volume 3