Specifications

The POST screen displays the following words:
Memory Memory test
Keyboard Initialize the keyboard and mouse. The window for pressing a key to
access the System Management Services, or to initiate a service
mode boot, is now open. See “POST Keys” for more information.
Network Self-test on network adapters
SCSI Adapters are being initialized
Speaker Sounds an audible tone at the end of POST
POST Keys
The POST keys, if pressed after the keyboard POST indicator displays and before the
last POST indicator (speaker) displays, cause the system to start services or to initiate
service mode boots used for configuring the system and diagnosing problems. The keys
are described below:
Note: The program function keys (F1-F12) on a keyboard attached to the system unit
are no longer used and will be ignored during POST. After the keyboard POST
indicator displays, you must use the numeric number keys to enter input.
1 Key
The numeric 1 key, when pressed during POST, starts the System Management
Services (SMS) interface.
5 Key
The numeric 5 key, when pressed during POST, initiates a system boot in service mode
using the default service mode boot list.
This mode attempts to boot from the first device of each type found in the list. It does
not search for other bootable devices of that type if the first device is not bootable.
Instead, it continues to the next device type in the list. The firmware supports up to five
entries in the boot list.
The default boot sequence is:
1. Diskette
2. CD-ROM
3. Hard file
4. Tape drive (if installed)
5. Network
a. Token ring
b. Ethernet
10 Service Guide