Power Management-Related Symptoms
Symptom/Error FRU/Action in Sequence
The system will not
enter hibernation
mode.
1. Keyboard (if control is from
the keyboard)
2. Hard disk drive
3. Planar board
The system will not
wake up from
hibernation mode.
1. Keyboard (if control is from
the keyboard)
2. Hard disk drive
3. Planar board
The system will not
enter suspend mode
after closing the LCD.
1. Lid switch
2. Planar board
Battery fuel-gauge
does not go higher
than 90%.
1. Remove Battery ASM and let
it cool for 2 hours.
2. Refresh battery (continue
using battery in BIOS Setup
mode until powe off, then
charge battery).
3. Battery
4. DC/DC & Charger board
5. Planar board
System configuration
does not match the
installed devices.
1. Load Setup Defaults and
reboot the system.
2. Reseat the Combobay ASM.
System hangs
intermittently. 1. Reseat Hard Disk/Combobay
ASM.
2. Fan ASM
3. Planar board
Peripheral-Device-Related Symptom

Note: If you cannot find a symptom or an error in this list

and the problem remains, see “Undetermined

Problems” on page 40.

Symptom/Error FRU/Action in Sequence
External display does
not work correctly. Planar board
USB does not work
correctly. Planar board
Print problems. Run printer self-test.
Printerdriver
Printercable
Planarboard
Serial or parallel port
device problems. Devicedriver
Devicecable
Device
Planarboard

ThinkPad 390/i Series 1700 39