HP X Class 500/550MHz HP Visualize X-Class 500MHz, 550MHz Technical Reference - Page 35

System Board Switches, Table 2-1. System Board Configuration Switches

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System Board System Board Switches System Board Switches The first system board switch is reserved (clock dithering spread spectrum), and the next four switches set the ratio of processor-frequency to Processor-Local-Bus-Frequency. The next five switches set the configuration for the Personal Workstation, as summarized in the table below. Table 2-1. System Board Configuration Switches Switch 1 Off 2-5 - 6 Switch Function Reserved - Do not use. (OFF = dithering is enabled, ON = dithering not enabled) Bus Frequencies (refer to the table "Bus Frequencies" in this chapter). Retain or clear the CMOS configuration stored in serial EEPROM: Default Off - Off Retain CMOS configuration. Off On Clear CMOS and reload default values in Setup. 7 Enable or disable User and System Administrator Passwords stored in EEPROM: Off Enable passwords. Off On Disable/Clear User and System Administrator passwords. 8 Keyboard power-on: Off Disable keyboard power-on. On On Enable keyboard power-on. 9 Frequency selection mode: Off1 Enable automatic processor frequency, which is programmed by MaxiLife. On On Enable manual processor frequency. System board switch settings must be manually programmed. 10 Boot block: Off Disable crisis recovery. Normal operation. Off On Enable crisis recovery. Recovery boot active2. 1. Automatic processor frequency is not yet available. Switch 9 should always be set to ON. 2. Refer to "BIOS Update Crisis Recovery Procedure" in this chapter. Chapter 2 35

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Chapter 2
35
System Board
System Board Switches
System Board Switches
The first system board switch is reserved (clock dithering spread spectrum), and the next
four switches set the ratio of processor-frequency to Processor-Local-Bus-Frequency. The
next five switches set the configuration for the Personal Workstation, as summarized in
the table below.
Table 2-1. System Board Configuration Switches
Switch
Switch Function
Default
1
Off
Reserved - Do not use. (OFF = dithering is enabled, ON = dithering not enabled)
Off
2 - 5
–
Bus Frequencies (refer to the table “Bus Frequencies” in this
chapter).
–
6
Off
On
Retain or clear the CMOS configuration stored in serial EEPROM:
Retain CMOS configuration.
Clear CMOS and reload default values in
Setup
.
Off
Off
7
Off
On
Enable or disable User and System Administrator Passwords stored
in EEPROM:
Enable passwords.
Disable/Clear User and System Administrator passwords.
8
Off
On
Keyboard power-on:
Disable keyboard power-on.
Enable keyboard power-on.
On
9
Off
1
On
1.
Automatic processor frequency is not yet available. Switch 9 should always be set to ON.
Frequency selection mode:
Enable automatic processor frequency, which is programmed by
MaxiLife.
Enable manual processor frequency. System board switch settings
must be manually programmed.
On
10
Off
On
Boot block:
Disable crisis recovery. Normal operation.
Enable crisis recovery. Recovery boot active
2
.
2.
Refer to “BIOS Update Crisis Recovery Procedure” in this chapter.
Off