Onboard Devices; Pci Devices - HP Point of Sale rp5000 Setup Manual

Computer Setup (F10) Utility Guide
Computer Setup (Continued)
Heading
Advanced*
(continued)
*These options should be used by advanced
users only.
✎
Support for Computer Setup options may vary depending on your specific hardware
configuration.
16
Option
Power-On Options
(continued)

Onboard Devices

PCI Devices

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Description
• I/O APIC Mode (enable/disable).
Enabling this feature will allow Microsoft
Windows Operating Systems to run
optimally. This feature must be disabled
for certain non-Microsoft Operating
Systems to work properly.
• ACPI/USB Buffer @ Top of Memory
(enable/disable). Enabling this feature
places USB memory buffers at the top
of memory. The advantage is that
some amount of memory below 1 MB is
freed up for use by option ROMs. The
disadvantage is that a popular memory
manager, HIMEM.SYS, does not work
properly when USB buffers are at top of
memory AND the system has 64 MB or
less of RAM.
Allows you to set resources for or disable
onboard system devices (serial ports A, B, C,
or D, diskette controller, or parallel port).
• Lists currently installed PCI devices and
their IRQ settings.
• Allows you to reconfigure IRQ settings for
these devices or to disable them entirely.
These settings have no effect under an
APIC-based operating system.
Computer Setup (F10) Utility Guide