3.7 Memory Test
3 Tests and Diagnostics
TECRA M3 Maintenance Manual (960-507)
3-17
3.7 Memory Test
To execute the Memory Test, select
2
from the DIAGNOSTIC TEST MENU, press
Enter
and
follow the directions on the screen. Move the highlight bar to the subtest you want to execute and
press
Enter
.
Subtest 01
Conventional memory
This subtest writes a constant data to conventional memory (0 to 640 KB), then
reads the new data and compares the result with the original data.
Subtest 02
Protected Mode
Note
:
The CONFIG.SYS file must be configured without expanded memory manager
programs such as EMM386.EXE, EMM386.SYS or QEMM386.SYS. Also, the
HIMEM.SYS must be deleted from the CONFIG.SYS file.
This subtest writes constant data and address data (from 1MB to maximum MB),
and reads the new data and compares the result with the original data.
Subtest 03
Protected Mode (cache off)
This subtest executes the same way as the subtest 02 with the cache off.
Subtest 04
Cache memory (on/off)
To test the cache memory, a pass-through write-read comparison of ‘5Ah’ data is
run repeatedly to the test area (‘7000’: ‘Program’ size to ‘7000’: ‘7FFF’ (32 KB))
to check the hit-miss ratio (on/off status) for CPU cache memory. One test takes 3
seconds.
Number of misses
?
Number of hits
?
OK
Number of misses
?
Number of hits
?
Fail
Subtest 05
Stress
Data (from 1MB to the maximum MB) is written from the 16KB write buffer to the
16KB read buffer and compared the data in the buffers. The read buffer starts from
0001 and the comparison is continued with the following read buffer addresses:
0001, 0003, 0005, 0007, 0009, 000b, 000d and 000f.
Содержание Tecra M3 Series
Страница 1: ...Toshiba Personal Computer TECRA M3 Maintenance Manual TOSHIBA CORPORATION File Number 960 507 ...
Страница 10: ...x TECRA M3 Maintenance Manual 960 507 ...
Страница 11: ...Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii TECRA M3 Maintenance Manual 960 507 ...
Страница 27: ...1 2 System Unit Block Diagram 1 Hardware Overview TECRA M3 Maintenance Manual 960 507 1 13 ...
Страница 53: ...1 13 Batteries 1 Hardware Overview TECRA M3 Maintenance Manual 960 507 1 39 ...
Страница 54: ...Chapter 2 Troubleshooting Procedures ...
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Страница 60: ...2 Troubleshooting Procedures TECRA M3 Maintenance Manual 960 507 2 vii ...
Страница 118: ...2 Troubleshooting Procedures 2 16 PCI ExpressCard Slot Troubleshooting 2 58 TECRA M3 Maintenance Manual 960 507 ...
Страница 119: ...Chapter 3 Tests and Diagnostics ...
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Страница 235: ...Chapter 4 Replacement Procedures ...
Страница 236: ...4 Replacement Procedures 4 ii TECRA M3 Maintenance Manual 960 507 ...
Страница 255: ...4 5 HDD 4 Replacement Procedures TECRA M3 Maintenance Manual 960 507 4 15 Figure 4 4 Removing the HDD cover ...
Страница 289: ...4 Replacement Procedures 4 14 Sound board 4 46 TECRA M3 Maintenance Manual 960 507 Figure 4 28 Removing the sound board ...
Страница 299: ...4 Replacement Procedures 4 17 RGB harness holder RGB board Modem jack 4 56 TECRA M3 Maintenance Manual 960 507 ...
Страница 322: ...4 23 LCD unit FL inverter 4 Replacement Procedures TECRA M3 Maintenance Manual 960 507 4 77 12 Stick the two mask seals ...
Страница 359: ...Appendices ...
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Страница 363: ...Appendices TECRA M3 Maintenance Manual 960 507 App v Appendix I Reliability I 1 ...
Страница 367: ...Appendices TECRA M3 Maintenance Manual 960 507 App ix ...
Страница 373: ...Appendices Appendix A Handling the LCD Module A 6 TECRA M3 Maintenance Manual 960 507 ...
Страница 395: ...Appendices Appendix C Pin Assignments C 14 TECRA M3 Maintenance Manual 960 507 143 ACAD03 EYP I O 144 ACAD04 EYP I O ...
Страница 403: ...Appendices Appendix C Pin Assignments C 22 TECRA M3 Maintenance Manual 960 507 217 GND 218 NC ...
Страница 407: ...Appendices Appendix C Pin Assignments C 26 TECRA M3 Maintenance Manual 960 507 13 LAN E3V 14 LAN E3V ...
Страница 414: ...Appendix C Pin Assignments Appendices TECRA M3 Maintenance Manual 960 507 C 33 3 SPOTR PXP 4 SPOTR PXN O ...
Страница 427: ...Appendices Appendix E Key Layout E 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 429: ...Appendices Appendix F Wiring diagrams F 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 431: ...Appendices Appendix G BIOS rewrite procedures G 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 433: ...Appendices Appendix H EC KBC rewrite procedures H 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 435: ...Appendices Appendix I Reliability I 2 TECRA M3 Maintenance Manual 960 507 ...