7 Steps to P5000HX Operation
40
Model P5000HX Series CPU User’s Manual
Step 7 (cont.) - Run the Setup Utility (Advanced Options)
Overview
This section introduces the “Advanced Options” menus.
Serial Ports
Use this option to select the port addresses for 16550-compati-
ble Serial Port 1 (UART1) and Serial Port 2 (UART2). Note: If
Serial Ports 1 and 2 are given the same base port address, you
will be prompted to make a choice that will resolve the conflict.
Parallel Ports
Use this feature to select an address for the on-board parallel
port (IEEE 1284). This port can also be configured as
AT-compatible or PS/2 compatible.
Memory Cache
This option allows you to enable or disable the external (L2)
write-back cache.
Advanced Chipset
This menu allows you to configure four options:
•
DRAM Speed - set this option to match the speed
of installed SIMMs. Caution should be used when
changing defaults; incorrect settings can damage
the system.
•
DMA Alias - the DMA Alias feature is an I/O
range switch for the chip that is responsible for
bridging the PCI to ISA bus. Enable this feature
only when experiencing I/O address-mapping com-
patibility problems.
•
Parity/ECC - For DRAM with a parity bit, ECC
(Error Correction Code) enables the chipset to
detect and correct single-bit errors from data
reads prior to CPU processing (doesn’t apply to
multi-bit errors). With the Parity setting, single
bit errors are not corrected.
•
Memory Gap Block Size - this option allows use
of the selected memory block for other purposes.
