IBM 8837 - eServer xSeries 336 User Manual page 30

v Advanced Setup
18
IBM xSeries 336 Type 8837: User's Guide
This choice is on the full Configuration/Setup Utility menu only.
Select this choice to change settings for advanced hardware features.
Important: The server might malfunction if these options are incorrectly
configured. Follow the instructions on the screen carefully.
This choice is on the full Configuration/Setup Utility menu only.
– System Partition Visibility
Select this choice to specify whether the System Partition is to be visible or
hidden.
– Memory Settings
Select this choice to manually enable a pair of memory connectors. If a
memory error is detected during POST or memory configuration, the server
automatically disables the failing pair of memory connectors and continues
operating with reduced memory. After the problem is corrected, you must
manually enable the memory connectors. Use the arrow keys to highlight the
pair of memory connectors that you want to enable, and use the arrow keys to
select Enable.
You can select any of the following memory configurations:
- The flat (default) configuration uses memory without any redundancy.
- In mirroring mode, memory pairs act as a RAID level 1 memory array. This
option reduces the amount of memory usable by the system by half.
- Sparing mode sets aside memory to dynamically replace a section of failing
memory during system operation. This mode also reduces the amount of
memory available to the system. The mirroring and sparing configuration
requires that the memory be placed in multiple memory sockets.
– CPU Options
Select this choice to disable the microprocessor cache or to set it to use the
write-back or write-through method. Write-back caching generally provides
better system performance.
Hyper-Threading technology enables a server with one microprocessor to
operate as if it were two microprocessors. Utilizing the CPU option allows
better system performance, and will appear to the Operating System that
twice the number of microprocessors are present.
You can enable the Prefetch Queue option from the CPU options menu. The
Prefetch Queue option along with 64-bit addressing, in EM64T, can boost the
software performance of the server.
– PCI Bus Control
Select this choice to view and set interrupts for PCI devices and to configure
the master-latency-timer (MLT) value for the server.
– Baseboard management controller Settings
This option provides you with the following choices:
- View the BMC firmware version
- Enable and set timeout values for the following items:
v BMC post watchdog
v BMC OS loader watchdog
- Enable the Reboot on NMI option
If you enable this option, the server will automatically restart 60 seconds
after the BMC issues a nonmaskable interrupt (NMI) to the server. If you