User`s guide

SCU Features
C-11
Menu Fields Settings Comments
2nd OPB CPU
Line Read Pre-
Fetch
Disabled
Enabled
(1)
When enabled, allows the 2nd OPB’s PCI
memory read line commands to pre-fetch
additional CPU cache lines.
CPU in order
queue depth
8
(1)
1
Allows you to select the depth of the CPU in-
order-queue.
APIC & MP
table
Disabled
MPS 1.1
MPS 1.4
(1)
Applicable to single processor configurations
only, always enabled for Multi-Processing
(MP) operating system configurations. When
set to MPS 1.1 or MPS 1.4, the CPU’s
Advanced Programmable Interrupt Controller
(APIC) is enabled, and the MP table used by
MP operating systems will be created.
Note: This parameter must be disabled for
NetWare 3.12 single processor systems.
ECC interrupt Disabled
(1)
IRQ14, Shared
IRQ14, Non-
Shared
IRQ15, Shared
IRQ15, Non-
Shared
Enables the Error Correction Code (ECC)
interrupt. If enabled, you can select IRQ14 or
IRQ15 as the ECC interrupt. You can also
define the IRQ as shared with other devices,
such as EISA or PCI devices.
GAT mode Enabled
(1)
Disabled
Should be enabled only when an ISA bus
mastering card is installed in the server.
Disable it for all other configurations.
System
arbitration
CPU Bus first
(1)
EISA Bus first
Full Rotation
This option controls the operating modes of
the server’s PCI arbiter. The arbiter controls
the arbitration priorities for EISA, PCI, and
CPU buses.
(1)
Factory default setting