Toshiba Satellite L630-ST2G02 Maintenance Manual - Page 98

3 Diagnostic Programs 3.6 Memory Test 3.6 Memory 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 Patterns This test item is to check whether the system memory includes base memory and extended memory that could be accessed correctly through writing and reading with a series of designed pattern data. 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 Memory. If user chooses Total Size, it means that the whole Extended Memory 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 Memory will be taken according to the coverage range that user chooses or time. 34 Satellite/Satellite Pro L630/L635 Maintenance Manual