Toshiba T2150 series Maintenance Manual page 59

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 4 MB, 8 MB, 16 MB, and
24 MB.
After selecting subtest 05, the following message will appear:
Extended memory size (1:4 MB,2:8 MB,3:16 MB,4:24 MB)?
Select the number that corresponds to the memory card installed in the T2150
series.
Subtest 06 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
T2150 Series
3-11