HP Kayak XU 04xx HP Kayak XU PC Workstation Technical Reference Manual Hardwar - Page 37

System Board Switches, Switch, Function

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2 System Board Devices on the ISA Bus System Board Switches The first system board switch sets the frequency of the Processor-Local bus, and the next four the ratio of processor-frequency to Processor-Local-busfrequency, as summarized on page 16. The next five switches set the configuration for the PC Workstation, as summarized in the table below. Switch: Function: 1 - 5 Bus Frequencies (see the table on page 16). 6 - CONFIG 7 - PSWRD Retain or clear the configuration stored in CMOS: • UP to retain configuration - DEFAULT • DOWN to clear configuration. Enable or clear (and disable) User and System Administrator Passwords stored in serial EEPROM: • UP to enable passwords - DEFAULT • DOWN to clear passwords. 8 - KEYB Enable or disable "power on" using the keyboard: • UP to disable keyboard power on • DOWN to enable keyboard power on - DEFAULT. 9 - FAN SPEED Allows fan speed to be controlled or to be set at maximum: • UP to have fan speed controlled using internal temperature sensors - DEFAULT • DOWN to set fan speed at maximum. 10 - BOOTBLOCK BIOS Update Crisis Recovery: • UP to disable crisis recovery - DEFAULT • DOWN to enable crisis recovery1. 1.Refer to "BIOS Update Crisis Recovery Procedure" on page 28 for the detailed recovery procedure. 29

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29
2
System Board
Devices on the ISA Bus
System Board Switches
The first
system board switch
sets the frequency of the Processor-Local bus,
and the next four the ratio of processor-frequency to Processor-Local-bus-
frequency, as summarized on
page 16
. The next five switches set the
configuration for the PC Workstation, as summarized in the table below.
1.
Refer to
“BIOS Update Crisis Recovery Procedure” on page 28
for the
detailed recovery procedure.
Switch:
Function:
1 - 5
Bus Frequencies (see the table on page 16).
6 - CONFIG
Retain or clear the configuration stored in CMOS:
•
UP to retain configuration - DEFAULT
•
DOWN to clear configuration.
7 - PSWRD
Enable or clear (and disable) User and System Administrator Passwords stored in serial
EEPROM:
•
UP to enable passwords - DEFAULT
•
DOWN to clear passwords.
8 - KEYB
Enable or disable “power on” using the keyboard:
•
UP to disable keyboard power on
•
DOWN to enable keyboard power on - DEFAULT.
9 - FAN SPEED
Allows fan speed to be controlled or to be set at maximum:
•
UP to have fan speed controlled using internal temperature sensors - DEFAULT
•
DOWN to set fan speed at maximum.
10 - BOOTBLOCK
BIOS Update Crisis Recovery:
•
UP to disable crisis recovery - DEFAULT
•
DOWN to enable crisis recovery
1
.