HP Workstation xw4100, Сервисное и техническое руководство

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hp workstation xw4100 service and technical reference guide 3–9
system management
Advanced**
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Power-On Options
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Allows you to set: (continued)
• I/O APIC Mode (enable/disable). Enabling this feature will
allow Microsoft Windows Operating system to run optimally.
This feature must be disabled for certain non-Microsoft
Operating Systems to work properly.
• ACPI/USB Buffers @ Top of Memory (enable/disable).
Enabling this feature places USB memory buffers at the top of
memory. The advantage of remapping is that it allows space in
the DOS Compatibility Hole range, below 1MB, to be made
available for additional PCI plug-in cards that need option
ROM space.
Onboard Devices Allows you to set resources for or disable onboard system devices
(serial port, parallel port, or diskette controller).
PCI Devices 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.
Bus Options* Allows you to enable or disable:
• PCI bus mastering, which allows a PCI device to take control of
the PCI bus.
• PCI VGA palette snooping, which sets the VGA palette
snooping bit in PCI configuration space; only needed when
more than one graphics controller is installed.
• PCI SERR# generation.
• ECC support allows hardware-based error correction for
ECC-capable memories.
*Available on select models.
**These options should be used by advanced users only.
heading option description