This tester is made specially for diagnose the fault of IBM laptop, apply to IBM laptop Model:
? T61, R61/I/E, T400/S, T500, X61/S, X200/S, W500, W700 series.
?Run the tester and refer the number code (result of Post) to the error code listed as below:
FF 00- CPU is not working, bios programme corrupted or no bios posting.
2C 28 2E 38- memory error, memory cicuit error, north bridge error.
4A- display card error.
49 55 90- South bridge error.
B6- bios is looked.