Key; Pseries 670 System Locations - IBM pSeries 670 Service Manual

8 Key

To enter the open firmware command line, press the numeric 8 key after the word keyboard displays and
before the last word (speaker) displays during startup. After you press the 8 key, the remaining POST
indicators display until initialization completes.
This option is used only by service personnel to collect additional debug information.
To exit from the open firmware command prompt, type reset-all or power off the system and reboot.

pSeries 670 System Locations

The pSeries 670 system consists of a minimum of four subsystems in one rack as follows:
v Processor subsystem
v Media subsystem
v One I/O subsystem
v Power subsystem
These components are connected by cables that transmit data and control signals. I/O subsystems can be
added if further expansion of the system is required (up to two additional I/O subsystems).
16 Eserver pSeries 670 Service Guide