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Table 15. IPL speeds (continued)
IPL speed Action or description Details
S: Slow override for one IPL. Full hardware diagnostics run. Use
whenever hardware is changed, for
intermittent hardware failure, and on the
first installation IPL. The following
diagnostics are run:
v Main storage tests.
v CEC Inter-chip interface tests (wire test).
v Extended Logical Built-in Self Tests.
SE: Hardware upgrade. Support-directed procedure only.
V=F: Use system-defined speed. Fast IPL set by system value (displayed at
function 01).
V=S: Use system-defined speed. Slow IPL set by system value (displayed at
function 01).
V Fast IPL or slow IPL set
by the system value
(selected at function 02).
Function 02 selection or the system default
at each IPL.
Control Panel Functions (Models 150, 170, 250, 4xx, 50x, 51x, 530, 53S,
6xx, 7xx, SB1, and Sxx)
The control panel functions and descriptions are listed in Table 16. For more details
about the functions, begin at “Control panel function descriptions (Models 150,
170, 250, 4xx, 50x, 51x, 530, 53S, 6xx, 7xx, SB1, and Sxx)” on page 162.
Notes:
1. Some control panel functions might not be available on all system types.
2. The x can be any number 0 through 9, any letter A through F, or a blank.
3. If the customer was performing the function, find out why the customer
selected the function and verify whether it is complete.
4. If you cannot change the Function/Data display or complete the selected
function, go to “Starting Point for All Problems” in the Problem Analysis
information for your system.
Table 16. Control panel (8-character) function codes
Function code Function selected
01 Pressing the Enter button toggles between:
1. Display the currently selected IPL type (and logical key mode on some system
types).
2. Display the currently selected IPL speed override for the next IPL.
02
1. Pressing the Enter button once allows selection of the IPL type (and logical key
mode on some system types).
2. When the system power is off, pressing the Enter button twice allows selection
of an IPL speed override for the next IPL.
03 Start an IPL to load the system. The IPL uses the selected IPL options.
04 Lamp test; all displays and indicators will be switched on.
05 System Power Control Network (SPCN) system reference code (SRC); displays an
SRC on the control panel.
160 Service Functions V5R2