Test Program for Field.
16
Satellite U840 Tests and Diagnostics Manual
Test Process:
1.
Checks the memory size to determine the maximum size of installed
memory.
2.
Tests memory addresses 0 to the maximum installed.
3.
Writes, reads, and compares test data after a memory refresh cycle
(16ms or more).
NOTE: There may be a short delay between write and read operations,
depending on the memory size.
Subtest 05
Stress Test
This subtest writes the following 16KB data patterns to the Write/Read Buffer
in conventional memory.
data:
FFFFFFFFFFFFFFFF0000000000000000
5555555555555555AAAAAAAAAAAAAAAA
CCCCCCCCCCCCCCCC3333333333333333
0000000000000000FFFFFFFFFFFFFFFF
AAAAAAAAAAAAAAAA5555555555555555
3333333333333333CCCCCCCCCCCCCCCC
FFFFFFFFFFFFFFFF0000000000000000
0000000000000000FFFFFFFFFFFFFFFF
5555555555555555AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA5555555555555555
CCCCCCCCCCCCCCCC3333333333333333
3333333333333333CCCCCCCCCCCCCCCC
Summary of Contents for Satellite U840 Series
Page 1: ...Satellite U840 Maintenance Manual 960 Q08 Chapter 1 Hardware Overview ...
Page 18: ...Chapter 1 Hardware Overview Satellite U840 Maintenance Manual 960 Q08 15 ...
Page 24: ...2 1 Satellite U840 Maintenance Manual 960 Q08 Chapter 2 Troubleshooting Procedures ...
Page 190: ...Satellite U840 Maintenance Manual 960 Q08 Appendix B Appendix B Board Layout B 1 System Board ...