IBM 220 manual Advanced Setup, Processor Serial Number Access, System Partition Visibility

defaults can only be loaded from the Configuration/Setup Utility main menu.

You can enable a virus-detection test that checks for changes in the master boot record at startup. You also can select to run POST in the enhanced mode or the quick mode.

•Advanced Setup

Select this choice to change values for advanced hardware features, such as cache control and PCI configuration.

A 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 specify whether the microprocessor serial number in the microprocessor is readable.

—System Partition Visibility

Select this choice to specify whether 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. See “Chapter 4. Using the ServerGuide CDs,” on page 21 for additional information on the System Partition.

—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 in this option 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 define the microprocessor cache type as write-back (WB) or write- through (WT). Selecting write-back mode provides better system performance.

—Memory Settings

Select this choice to manually disable or enable a bank of memory.

If a memory error is detected during POST or memory configuration, the server can automatically disable the failing memory bank and continue operating with reduced memory capacity. If this occurs, you must manually enable the memory bank after the problem is corrected. Select Memory Settings from the Advanced Setup menu, use the arrow keys to highlight the bank that you want to enable; then, use the arrow keys to select Enable.

Note: If a memory error is detected during normal operation, System Management Interrupt (SMI) can disable the memory.

—PCI Bus Control

Note: If the optional system-management adapter is installed in your server, this feature is disabled; in this case, the PCI Bus Control choice is not available on the Configuration/Setup Utility menu.

Select this choice to assign IRQs and program the master latency timer.

—PCI Slot/Device Information

Note: This choice is available on the Configuration/Setup Utility menu only if the optional system-management adapter is installed in your server.

Select this choice to view and identify system resources that are used by PCI devices. PCI devices automatically communicate with the server

14 IBM® xSeries 220 User’s Reference