20 www.hp.com Computer Setup (F10) Utility Guide
Computer Setup (F10) Utility
Advanced*
(continued)
Power-On Options
(continued)
Allows you to set:
• 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 Buffers @ 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.
• Hyper-threading (enable/disable).
• Limit CPUID Maximum Value to 3 -
Restricts the number of CPUID functions
reported by the microprocessor. Enable
this feature if booting to WinNT.
*For advanced
users only.
BIOS Power-On Allows you to set the computer to turn on
automatically at a time you specify.
Onboard Devices Allows you to set resources for or disable
onboard system devices (diskette controller,
serial port, or parallel port).
Computer Setup (Continued)
Heading Option Description
✎
Support for specific Computer Setup options may vary depending on the hardware
configuration.
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