IBM 86645RY Hardware Maintenance Manual - Page 43

PCI Slot/Device Information, Core Chipset Control, Cache Control, MPS Version Control

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Core Chipset Control: Select this choice to modify settings that control features of the core chip set on the system board. 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 define the microprocessor cache type as write-back (WB) or write-through (WT). Selecting write-back mode will provide the maximum system performance. MPS Version Control Select this choice to view and identify the multiprocessor specification (MPS) level. Some versions of the IBM OS/2 operating system use 1.1 as the MPS level. The default level is 1.4. Refer to the documentation that comes with the operating system for more information. PCI Slot/Device Information: Select this choice to view and identify system resources used by PCI devices. PCI devices automatically communicate with the server configuration information. This usually results in automatic configuration of a PCI device. If a conflict does occur, see "Resolving configuration conflicts" on page 39. Use the Up Arrow (↑) or Down Arrow (↓) key to highlight the assignment that you want to change and press Enter. Use the Left Arrow (←) or Right Arrow (→) key to select from the list of available choices. An asterisk (*) indicates that more than one device shares a slot. After making changes, you can select: Save and exit the PCI Utility to save the changes and return to the Advanced Setup choice. Exit the PCI Utility without saving changes to ignore the changes, restore the previous settings, and return to the Advanced Setup choice. Note You can use the menu selections to save settings or restore settings for the PCI Slot/Device Information choice only. The System Configuration Utility main menu selections save settings, restore settings, or load default settings for all other choices, but not the PCI Slot/Device Information choice. The server uses a rotational interrupt technique to configure PCI devices. Because of this technique, you can install a variety of PCI devices that currently do not support sharing of PCI interrupts (IRQs). Multiple-function PCI devices use more than one interrupt. Selecting PCI Device Control allows you to enable or disable the system board SCSI, video, and Ethernet controllers and the PCI slots. Netfinity 5600 - Type 8664 35

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Core Chipset Control:
Select this choice to modify
settings that control features of the core chip set on the
system board.
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 define the
microprocessor cache type as write-back (WB) or
write-through (WT).
Selecting write-back mode will provide
the maximum system performance.
MPS Version Control
Select this choice to view and
identify the multiprocessor specification (MPS) level.
Some versions of the IBM OS/2 operating system use 1.1
as the MPS level.
The default level is 1.4.
Refer to the
documentation that comes with the operating system for
more information.
PCI Slot/Device Information:
Select this choice
to view and identify system resources used by PCI
devices.
PCI devices automatically communicate with the
server configuration information.
This usually results in
automatic configuration of a PCI device.
If a conflict does
occur, see “Resolving configuration conflicts” on page
39.
Use the Up Arrow (
↑
) or Down Arrow (
↓
) key to highlight
the assignment that you want to change and press Enter.
Use the Left Arrow (
←
) or Right Arrow (
→
) key to select
from the list of available choices.
An asterisk (*) indicates
that more than one device shares a slot.
After making
changes, you can select:
±
Save and exit the PCI Utility
to save the changes
and return to the Advanced Setup choice.
±
Exit the PCI Utility without saving changes
to
ignore the changes, restore the previous settings, and
return to the Advanced Setup choice.
Note
You can use the menu selections to save settings or
restore settings for the PCI Slot/Device Information
choice only.
The System Configuration Utility main
menu selections save settings, restore settings, or
load default settings for all other choices, but not the
PCI Slot/Device Information choice.
The server uses a rotational interrupt technique to
configure PCI devices.
Because of this technique, you can
install a variety of PCI devices that currently do not support
sharing of PCI interrupts (IRQs).
Multiple-function PCI
devices use more than one interrupt.
Selecting
PCI Device Control
allows you to enable or
disable the system board SCSI, video, and Ethernet
controllers and the PCI slots.
Netfinity 5600 - Type 8664
35