HP Portable 486 Compaq Portable 486c Personal Computer Maintenance and Service - Page 42

Memory Error Codes, Table 3-13. Pointing Device Interface Test Error Codes

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2420 - 01 Video attribute test failed 2421 - 01 Video 640 x 200 graphics mode test failed 2422 - 01 Video 640 x 350 16 color set test failed 2423 - 01 Video 640 x 350 64 color set test failed 2424 - 01 Video monochrome text mode test failed 2425 - 01 Video monochrome graphics mode test failed 2431 - xx Video 640 x 480 graphics mode test failed 2432 - xx Video 320 x 200 graphics mode test failed Table 3-13. Pointing Device Interface Test Error Codes Error Recommended Code Description Action 8601 - xx Pointing Device Interface 1. Install new copy of test failed mouse driver software. 2. Replace with a working pointing device and retest. 3. Replace the I/O board and retest. Chapter 3.3 Memory Error Codes Memory error codes appear when the system detects a memory fault during the Power On Self Test (201 or 203 error codes) or as a result of a diagnostic test. The TEST programs attempt to isolate the memory fault to a specific location, then generate a memory error code. The memory error code points to a specific memory address. The physical location of the memory address depends on the number and type of memory modules installed and the type of memory device used. Memory error codes are displayed in an eight digit format (XX000Y ZZ). The XX and Y alphanumeric codes are key identification points for defective memory isolation. XX000Y ZZ Error Message | |-------- 201 (ROM) | Failed data bit. Values are: 00, 01, 02, 04,

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2420 - 01
Video attribute test failed
2421 - 01
Video 640 x 200 graphics
mode test failed
2422 - 01
Video 640 x 350 16
color set test failed
2423 - 01
Video 640 x 350 64
color set test failed
2424 - 01
Video monochrome text
mode test failed
2425 - 01
Video monochrome
graphics mode test failed
2431 - xx
Video 640 x 480 graphics
mode test failed
2432 - xx
Video 320 x 200 graphics
mode test failed
=============================================================================
Table 3-13. Pointing Device Interface Test Error Codes
=============================================================================
Error
Recommended
Code
Description
Action
-----------------------------------------------------------------------------
8601 - xx
Pointing Device Interface
1. Install new copy of
test failed
mouse driver software.
2. Replace with a
working pointing
device and retest.
3. Replace the I/O
board and retest.
=============================================================================
Chapter 3.3 Memory Error Codes
Memory error codes appear when the system detects a memory fault during the
Power On Self Test (201 or 203 error codes) or as a result of a diagnostic
test. The TEST programs attempt to isolate the memory fault to a specific
location, then generate a memory error code.
The memory error code points to a specific memory address. The physical
location of the memory address depends on the number and type of memory
modules installed and the type of memory device used.
Memory error codes are displayed in an eight digit format (XX000Y ZZ). The
XX and Y alphanumeric codes are key identification points for defective
memory isolation.
XX000Y ZZ
Error Message
| || |
|-------- 201 (ROM)
| || |
| ||
--------------------- Failed data bit. Values are: 00, 01, 02, 04,