IBM THINKPAD 385XD (2635) User Manual
Beep Symptoms
No Beep Symptoms
Symptom / Error
FRU / Action in Sequence
Continuous beeps.
System board
One beep and a blank,
unreadable, or flashing
LCD.
unreadable, or flashing
LCD.
1. Reseat the LCD
connector
2. LCD assembly
3. System board
3. System board
One beep, and the message
“Unable to access boot
source” appears.
“Unable to access boot
source” appears.
1. Boot device
2. System board
2. System board
One long and two short
beeps, and a blank or an
unreadable LCD.
beeps, and a blank or an
unreadable LCD.
1. System board
2. LCD assembly
2. LCD assembly
One long beep followed by
four short beeps each time
the power switch is
operated.
(System cannot turn on due
to low battery voltage.)
four short beeps each time
the power switch is
operated.
(System cannot turn on due
to low battery voltage.)
Connect the AC Adapter
or install a fully charged
battery.
or install a fully charged
battery.
One beep every second.
(System is shutting down
due to low battery voltage.)
(System is shutting down
due to low battery voltage.)
Connect the AC Adapter
or install a fully charged
battery. (Allow the
system to completely shut
down before changing the
battery.)
or install a fully charged
battery. (Allow the
system to completely shut
down before changing the
battery.)
Two short beeps with error
codes.
codes.
POST error. See
“Numeric Error Codes” on
page 38.
“Numeric Error Codes” on
page 38.
Two short beeps and a
blank screen.
blank screen.
System board
Symptom / Error
FRU / Action in Sequence
No beep, power-on indicator
not on, and a blank LCD
during POST.
not on, and a blank LCD
during POST.
1. Go to “Power
Systems Checkout”
on page 29.
on page 29.
2. DC/DC card
3. System board
4. CPU Card
3. System board
4. CPU Card
5. Check the power outlet
No beep, power-on indicator
on, and a blank LCD during
POST.
on, and a blank LCD during
POST.
1. DC/DC card
2. System board
3. CPU Card
2. System board
3. CPU Card
No beep, power-on indicator
on, and a blinking cursor
only during POST.
on, and a blinking cursor
only during POST.
1. DC/DC card
2. CPU Card
3. System board
2. CPU Card
3. System board
No beep during POST but
the system runs correctly.
the system runs correctly.
1. Turn the volume up
and check the
speaker.
speaker.
2. Speaker
3. System board
3. System board
IBM ThinkPad 380XD, 385XD (2635)
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