Toshiba PRO L645 Manual Do Utilizador

To execute the Memory Test select 02 from the Diagnostic Test Menu, press Enter and 
follow the directions on the screen. The Memory Test contains five subtests that test the 
computer’s memory. Move the highlight bar to the subtest you want to execute and press 
Enter. 
 

If YES is selected for Test Loop on the Test Parameter menu, the Test Status screen 
displays while the test is executing. Press Ctrl + break to return to the Memory Test menu. 

 
Subtest 01 

Conventional Memory 

This subtest first writes test data patterns to conventional memory (0 to 640 
KB), then reads the new data and compares the result with the original data 
patterns.  

If a compare error occurs, the write data, read data, and test address display on 
the screen. Addresses are displayed in 4KB increments during the test. 

1.  Byte Enable Test 

One bit write/ 8 bit read” is executed and the new data is compared 
with the original data.  
Test data = CCAA5533H, 80000000H 
 

2.  Byte Enable Test 

“One bit write/16 bit read” is executed and the new data is compared 
with the original data.  
Test data = CCAA5533H, 80000000H 
 

3.  Data bus test 

“One bit write/16 bit read” is executed and the new data is compared 
with the original data.  
Test data = 1H, 2H, 4H, 8H, 10H, through 80000000H. 
 

4.  Fixed data test 

“16 bit write/ 16 bit read” is executed and the new data is compared 
to the original data.  
Test data = FFFFFFFFH, 00000000H, 80018001H