Symptom/Error
FRU/Action in Sequence
Parallel port device
problems.
v
Device driver
v
Device cable
v
Device
v
Ensure that
″
Parallel Port
″
in the
″
Config sub-menu
″
menu of the
BIOS Utility is correctly set.
v
System board
Modem-Related Symptom
Symptom/Error
FRU/Action in Sequence
Internal modem does not
work correctly
v
Go to “FRU tests” on page 54.
v
Modem connector
v
Modem board
v
System board
Operating System-Related Symptom
Symptom/Error
FRU/Action in Sequence
Operating system not
found
v
Check that the operating system
has no failure and is installed
correctly.
v
Check the Boot device list in the
startup/Boot sub-menu is enabled
on each bootable device.
v
Enter IBM BIOS Setup Utility and
see whether the hard disk drive
and the diskette drive are properly
identified.
v
Reseat the hard disk drive.
v
Reinstall the operating system.
v
Diskette drive
v
Hard disk drive
v
System board
Intermittent Problems
Intermittent system hang problems can be caused by a
variety of reasons that have nothing to do with a hardware
defect, such as cosmic radiation, electronic discharge, or
software errors. FRU replacement should only be
considered when a recurring problem exists.
When analyzing on intermittent problem, do the following:
48
ThinkPad R30/R31 HMM
Summary of Contents for ThinkPad R30
Page 1: ...ThinkPad R30 R31 Hardware Maintenance Manual...
Page 4: ...iv ThinkPad R30 R31 HMM...
Page 73: ...1 Step Size Quantity Color Torque 1 M2 5 x L10 7 Black 3 2 kgf cm 2 MT 2656 2657 2676 67...
Page 89: ...MT 2656 2657 2676 83...
Page 119: ...1 Step Size Quantity Color Torque 1 M2 5 x L10 2 Black 3 2 kgf cm 2 3 4 MT 2656 2657 2676 113...
Page 141: ...MT 2656 2657 2676 135...
Page 143: ...3 Memory slot door 4 Docking connector MT 2656 2657 2676 137...
Page 181: ...1 2 Step Size Quantity Color Torque 2 M2 x L6 3 Silver 1 6 kgf cm 3 4 MT 2656 2657 2676 175...
Page 198: ...3 Memory slot door 4 Docking connector 192 ThinkPad R30 R31 HMM...
