Toshiba PSAA9, PTA71 Diagnostic Programs Memory Test, Subtest 01 Bios ROM, Subtest 02 Parity

3 Diagnostic Programs 3.6 Memory Test

3.6Memory Test

This test module is to check whether the memory chip works normally.

Subtest 01 BIOS ROM

This test item is to check the validity of BIOS ROM that includes two sub-items -- ROM Read and ROM Write Protection. ROM Read is to check whether BIOS ROM could be correctly read out, ROM Write Protect is to check whether BIOS ROM is write-protected.

Subtest 02 Parity

This test item is to check whether the parity checkout error could happen through writing and reading memory. Below is the parameter setting dialog window.

Test Option: Choose the Memory part to take the test– Base Memory or Extended Memory.

Extended Memory Test Range: Specify the test coverage range of Extended Momory. If user chooses Total Size, it means that the whole Extended Momory will be tested. Although user can input the parameter into other select box, but the selected result is invalid. If user chooses Special Size, the test of Extended Momory will be taken according to the coverage range that user chooses or time.

Extended Memory Start Address (MB) & Extended Memory End Address (MB): Set the range of extended memory that is to be tested, the test coverage would be based on the setting and the value in ‘Percent (%) mentioned at below.

40 Satellite A100/A105 / TECRA A7 Maintenance Manual