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3 Tests and Diagnostics
3.7 Memory Test
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
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.
QOSMIO G10 Maintenance Manual (960-497)
3-15
Summary of Contents for Qosmio G10 Series
Page 10: ...x QOSMIO G10 Maintenance Manual 960 497 ...
Page 11: ...Chapter 1 Hardware Overview QOSMIO G10 Maintenance Manual 960 497 1 i ...
Page 12: ...1 Hardware Overview 1 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 48: ...Chapter 2 Troubleshooting Procedures QOSMIO G10 Maintenance Manual 960 497 2 i ...
Page 49: ...2 2 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 53: ...2 vi QOSMIO G10 Maintenance Manual 960 497 ...
Page 116: ...Chapter 3 Tests and Diagnostics QOSMIO G10 Maintenance Manual 960 497 3 i ...
Page 117: ...3 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 121: ...3 vi QOSMIO G10 Maintenance Manual 960 497 ...
Page 224: ...Chapter 4 Replacement Procedures QOSMIO G10 Maintenance Manual 960 497 4 i ...
Page 225: ...4 Replacement Procedures 4 4 ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 312: ...Appendices QOSMIO G10 Maintenance Manual 960 497 App i ...
Page 313: ...App ii QOSMIO G10 Maintenance Manual 960 497 ...
Page 326: ...Appendix A Handling the LCD Module A 6 QOSMIO G10 Maintenance Manual 960 497 ...
Page 388: ...Appendix G BIOS Rewrite Procedures G 2 QOSMIO G10 Maintenance Manual 960 497 ...
Page 392: ...Appendix I Reliability I 2 QOSMIO G10 Maintenance Manual 960 497 ...