HP Irvine User Manual page 24

Irvine motherboard
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[Linux AHCI] - If your Linux system is supporting AHCI, then select this item. Otherwise,
select IDE.
► USB LEGACY Mode Support
With your motherboard and SATA hard disk both supporting AHCI, you better select
AHCI to install your Operating System (such as Windows XP). Later, if you ever
change this BIOS setting to IDE, OS still can run.
But if you at the first time set this setting to IDE, then install the Operating System.
Later, if you change this BIOS setting to AHCI, this operating system can not run.
When disabled, USB keyboard and mouse will not work during boot phases. If a USB
keyboard or mouse is plugged into the system for the first time while the system is off, or if the
USB keyboard or mouse is moved to a new USB port while the system is off, the device will
not work at the logon screen. At this point, the operating system has already taken the hand-off
from the BIOS, so the user may be stuck with no primary input device.
You must enable this setting so the BIOS can trap events from the USB keyboard and mouse
and presents them to the system as PS/2-compatible devices. Also some USB flash drives
may need this setting enabled to boot the system.
► Onboard Lan
This item is used to set whether the onboard LAN controller is enabled.
► Onboard Lan Boot ROM
This item is used to enable or disable the onboard LAN boot optional ROM. A LAN boot ROM
lets you set up a diskless workstation on the network. By installing a boot ROM in the network
board, you can enable a client PC system on the network to be booted remotely.
► Onboard 1394
This item is used to set whether the onboard 1394 controller is enabled.
► Supervisor Password
The supervisor password can be set up through this menu.
Press <Enter>, and key in a password, save the change and exit. The next time, when you
get into the BIOS again, it will ask you to confirm the password to maintain your access right.
After you have the right to access the BIOS, you then can select this setting again, and press
<Enter> to disable this function or to change it to another password.
► User Password
The user password can be set up through this menu. Only when there exists a Supervisor
password, then this setting can be active.
► Onboard Audio
This item is used to set whether the Audio controller is enabled.
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