IBM eServer 135 xSeries User Reference Manual page 26

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IBM xSeries 135: User's Reference
The administrator password provides access to all choices on the
Configuration/Setup Utility program main menu. You can set, change, or
delete both the administrator and power-on passwords, and allow a power-
on password to be changed by the user.
See "Using passwords" on page 15 for more information.
Start Options
Select this choice to view or change the start options. This choice appears only
on the full Configuration/Setup Utility program main menu. Start options take
effect when you start your server.
The server uses a startup sequence to determine the device from which the
operating system loads. For example, you can define a startup sequence that
checks for a startable diskette in the diskette drive, then checks the hard disk
drive in bay 1, and then checks a network adapter.
If the Boot Fail Count choice is enabled, you must restart the system three times
to restore the system BIOS default settings. If this choice is disabled, the system
BIOS defaults can be restored only from the Configuration/Setup Utility
program main menu.
You can enable a virus-detection test that checks for changes in the master boot
record at startup.
Advanced Setup
Select this choice to change values for advanced hardware features, such as
cache control and PCI configuration. This choice appears only on the full
Configuration/Setup Utility program main menu.
A warning message appears above the choices on this menu to alert you that the
system might malfunction if these options are configured incorrectly. Follow the
instructions on the screen carefully.
— Processor Serial Number Access
Select this choice to identify if the microprocessor serial number in the
microprocessor is readable.
— System Partition Visibility
Select this choice to identify if the System Partition is visible. To make the
System Partition visible, set this value to Visible. To make the System
Partition invisible, set this value to Hidden.
— Core Chipset Control
Select this choice to modify settings that control features of the core chip set
on the system board.
Attention: Do not make changes here unless directed to do so by an IBM
authorized service representative.
— Cache Control
Select this choice to enable or disable the microprocessor cache. In addition,
you can set the microprocessor cache mode to write-back (WB) or write-
through (WT). Selecting write-back mode will provide the maximum system
performance.
— PCI Slot/Device Information
Select this choice to view and identify system resources that are used by PCI
devices. PCI devices automatically communicate with the server
configuration information. This usually results in automatic configuration of
a PCI device.
Attention: You must use the menu selections to save custom settings for the
PCI Slot/Device Information choice. The Save Settings, Restore Settings,