Technical data

4-52 Fault Isolation

4. Reconﬁgure the system. The messages shown in Table 4-13 are displayed after

the SCSI tests are completed.

Table 4-13. Extended SCSI Test System Reconﬁguration Messages

Messages Meaning and What To Do

Remove test connector Connect cable to device Restore power to devices RETURN

continues operations This message appears only if the test has been run. Remove

the SCSI test connector from the SCSI port on the system unit. Reconnect the SCSI

interface cable to the device from which it was previously disconnected. Power on all

external SCSI peripherals. Press < RETURN > to continue with the next part of the

self-test and booting operations.

4.9.8 SCSI Interface ID Situations

During the search for an operating system phase of the boot process, the Boot ROM

looks for an SCSI interface by checking only the least signiﬁcant 3 binary bits of each

interface select code set to 111. This means any interface whose select code is 7,15, 23,

or 31 is accessed as if they were an SCSI interface.

4.10 Test Mode

When your display’s last lines show the following message, you can start the Test Mode:

RESET to Power-UP, SPACE to clear input Waiting for System Selection ?

Type < t > and the following Test Mode display appears in the screen’s upper right-

hand corner:

Self Test Controls

Keys Test Option Selected

-----------------------------

1 Continuous N

2 Extended N

3 Test Memory Y

D set Defaults

R Run Tests

-----------------------------

Type [key] RETURN ?