Toshiba T1950 User Manual page 55

Subtest 05 Memory module
NOTE: To execute this subtest, an optional memory card must be installed
in the computer.
This subtest functions the same as Subtest 04, except it is used for testing an
optional memory card. Memory module capacity is 2, 4, 8, and 16 MBs.
After selecting Subtest 05, the following message will appear:
Extended memory size (1:2 MB,2:4 MB,3:8 MB,4:16 MB) ?
Select the number that corresponds to the memory card installed in the T1900/
T1900C.
Subtest 06 Backup Memory
This subtest writes constant data to memory from address C8000h to CFFFFh,
then reads new data and compares the results with the original data.
The constant data is 0000h, 5555h, AAAAh, and FFFFh.
Subtest 07 Hard-RAM
This subtest writes a word unit of constant data to memory (address E0000h to
E7FFFh), then reads the new data and compares the results with the original
data.
The constant data is 0000h, 5555h, AAAAh, and FFFFh.
This subtest also executes the paging test for page data.
Subtest 08 Cache memory
To test the cache memory, a pass-through write-read comparison of '5A' data
is run repeatedly to test area ('7000':'Program' size to '7000':=7FFF' (32
KB)) to check the hit-miss ratio (on/off status). One test takes 3 seconds.
Number of miss hit < Number of hit → OK
Number of miss hit ≥ Number of hit → Fail
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