Service manual

2 Testing
1.1 Running Power-Up Tests
Power-up tests run each time you turn the system power ON and, if the
tests are successful, the operating system starts booting. Power-up testing
consists of a sequence of tests executed for each device installed in the
system. The test number of each device is listed on the power-up screen
display as the device is tested.
To run power-up tests, turn the system power switch ON.
Example 1–1 shows an example of the power-up screen display.
KA43-A V1.0
F...E...D...C...B...A_..9...8...7...6...5...4...3_..2_..1...
OK
>>>
Example 1–1 Power-Up Tests Screen Display
Example 1–2 shows the power-up screen display with a hard error found
in TEST 9 and a soft error in TEST 8.
KA43-A V1.0
F...E...D...C...B...A_..9?..8...7...6...5...4_..3_..2_..1...
?? 9 00B0 0001.F002 (Hard error)
? 8 0040 0000.0005 (Soft error)
Example 1–2 Power-Up Tests with Errors
Usually, a question mark (?) in the power-up summary indicates a soft
error and the system may be usable without replacing any FRUs.
Double question marks (??) in the power-up summary indicates a hard
error. This indicates a serious problem that may affect the normal
operation of some component in the system. The failing device must
be replaced before booting the operating system software.
If no power-up display is seen, refer to the VAXstation 3100 Maintenance
Guide.