Error Codes And Description - Toshiba Satellite M20 Maintenance Manual

3.11Error Codes and Description

3.11 Error Codes and description
The format of 'Error Code' is 'ddxxee', and 'dd' is the device ID (1~2 chars), 'xx' is test function
ID of device (2 chars), 'ee' is the error code of device (2 chars); the range of error code is from 01
to 99 in each device (the common error codes in all device are set to 99 and spanned).
Error
Device
Code
ddxx ee Common Error
94 Interactive Mode Needed
01xx CPU
CPU General Function
01
Error
02 CPU Arithmetic Error
03 CPU Logic Error
04 CPU Type Error
05 CPU Speed Error
NPU General Function
06
Error
07 NPU Interrupt Error
08 CPU Information Error
09 Protected Instruction Error The CPU is damaged.
Does not Support CPU
10
Speedstep
CPU Speedstep Power
11
Change Error
CPU Speedstep Speed
12
Change Error
21 MMX Test Error
02xx Memory
Satellite M20 Maintenance Manual
Description
The test is not under interactive
mode.
The CPU General Function
register is damaged.
The CPU Arithmetic Register is
damaged.
The CPU Logic Register is
damaged.
The CPU Type is not
supportable.
The CPU speed differs from the
expected value.
The NPU arithmetic unit is
damaged.
The NPU is damaged.
Information of the CPU can not
be acquired.
The CPU does not support
Speedstep.
The power mode is not correctly
changed.
The CPU frequency can not
alternate normally with the
change of power mode.
The CPU MMX register is
damaged.
3 Diagnostic Programs
Cause
Check whether the interactive test
mode is adopted.
Replace the CPU.
As above.
As above.
Check whether the CPU is Intel
CPU.
Check the CPU speed and the set
expected speed.
Replace the CPU.
As above.
Check whether the CPU is Intel
CPU.
Replace the CPU.
Check whether the power change
mode is correct.
As above.
Confirm with the same type CPU.
Replace the CPU.
Action
57