IBM 86607SU Hardware Maintenance Manual - Page 106

ACPI control, PCI bus control, Memory settings, Advanced ISA settings

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ACPI control: Select this choice to enable or disable the advanced configuration and power management interface (ACPI) in the BIOS. You can choose to change the ACPI hardware signature or select an IRQ for ACPI. Cache control: Select this choice to enable or disable the microprocessor cache. In addition, you can define the microprocessor cache mode as write-back (WB) or write-through (WT). Selecting write-back mode will provide the maximum system performance. Note If the system does not start (boot) successfully after three attempts, the default configuration is loaded, disabling the cache. PCI bus control: Select PCI Bus Control to get the following choices: PCI-PCI Bridge Pre-fetching: Set PCI-PCI bridge pre-fetching to Enabled for maximum performance. If you experience problems running peer-to-peer adapters, disable this function. PCI Primary Bus MLT: This setting is for the primary master latency timer (MLT). It can be used to help tune performance of the server. PCI Secondary BUS MLT: This setting is for the secondary master latency timer (MLT). It can be used to help tune performance of the server. PCI Interrupt Routing: This choice can be used to manually override the interrupts for PCI devices. Any changes that you make in PCI Interrupt Routing will not be reflected in the IRQ settings displayed in the PCI Routing selection of the System Information menu until you restart the server. Memory settings: Select this choice to manually disable or enable a row of memory. If a memory error is detected during POST or memory configuration, the server can automatically disable the failing row of memory and continue operating with reduced memory capacity. If this occurs, you must manually enable the row of memory after the problem is corrected. Choose Memory Settings from the Advanced Setup menu; then use the the Up Arrow (↑) or Down Arrow (↓) key to highlight the row that you want to enable. Use the Left Arrow (←) or Right Arrow (→) key to select Enable. Advanced ISA settings: Select this choice to select the I/O recovery timer settings. System Service Processor settings: Select this choice to change the system management processor IRQ. 98 Netfinity Server HMM

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ACPI control:
Select this choice to enable or disable
the advanced configuration and power management
interface (ACPI) in the BIOS.
You can choose to change
the ACPI hardware signature or select an IRQ for ACPI.
Cache control:
Select this choice to enable or disable
the microprocessor cache.
In addition, you can define the
microprocessor cache mode as write-back (WB) or
write-through (WT).
Selecting write-back mode will provide the maximum
system performance.
Note
If the system does not start (boot) successfully after
three attempts, the default configuration is loaded,
disabling the cache.
PCI bus control:
Select
PCI Bus Control
to get the
following choices:
±
PCI-PCI Bridge Pre-fetching:
Set
PCI-PCI bridge
pre-fetching
to
Enabled
for maximum performance.
If you experience problems running peer-to-peer
adapters, disable this function.
±
PCI Primary Bus MLT:
This setting is for the primary
master latency timer (MLT).
It can be used to help
tune performance of the server.
±
PCI Secondary BUS MLT:
This setting is for the
secondary master latency timer (MLT).
It can be
used to help tune performance of the server.
±
PCI Interrupt Routing:
This choice can be used to
manually override the interrupts for PCI devices.
Any
changes that you make in PCI Interrupt Routing will
not be reflected in the IRQ settings displayed in the
PCI Routing selection of the System Information
menu until you restart the server.
Memory settings:
Select this choice to manually
disable or enable a row of memory.
If a memory error is detected during POST or memory
configuration, the server can automatically disable the
failing row of memory and continue operating with reduced
memory capacity.
If this occurs, you must manually
enable the row of memory after the problem is corrected.
Choose
Memory Settings
from the Advanced Setup
menu; then use the the Up Arrow (
↑
) or Down Arrow (
↓
)
key to highlight the row that you want to enable.
Use the
Left Arrow (
←
) or Right Arrow (
→
) key to select
Enable
.
Advanced ISA settings:
Select this choice to select
the I/O recovery timer settings.
System Service Processor settings:
Select this
choice to change the system management processor IRQ.
98
Netfinity Server HMM