Technical data

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.

KA42-B V1.0

F...E...D...C...B...A...9...8...7...6...5...4...3_..2_..1...

Example 1–1 Power-Up Tests Screen Display

Example 1–2 shows the power-up screen display with a hard error found

in TEST F and a soft error in TEST E.

KA42-B V1.0

F?..E...D...C...B...A...9...8...7...6...5...4_..3_..2_..1...

?? F 00B0 0001.F002 (Hard error)

? E 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.

1.1.1 Power-Up Test Codes

The power-up test codes indicate no error, soft errors, status information,

or hard (fatal) error information. Any errors found by power-up tests are

listed in the power-up tests summary. These errors as well as the status

of all devices installed in the system are then stored in the conﬁguration

table (TEST 50). See Example 1-3.