Asus P/I-AP55T - Manual (Page 45)

Software Guide
Password Control
The "Security Option" controls the Password Setting in the main
screen. The default setting is "System", uses the User Password fea­
ture every time you boot up. The other setting is "Setup". This will
allow the system to boot, and use the Supervisor Password only to
protect the Setup Utility settings from being tampered with. You cre­
ate a password by using the Supervisor or User Password command
from the main screen as explained later in this section.
IDE Second Channel Control
The "IDE Second Channel Control" default setting is "Enabled".
If you do not want to use the second onboard Enhanced ГОЕ chan­
nel, disable this. When the second channel is enabled, it uses IRQ 15,
whether or not you connect anything to the onboard connector.
Shadow Controls
The default setting for the "Video BIOS Shadow" is "Enabled".
This copies the video display card BIOS into system DRAM to im­
prove performance.
The next ten lines, "C8000-CBFFF Shadow" to "ECOOO-EFFFF
Shadow" are for shadowing other expansion card ROMs. The default
setting for these areas is "Disabled". If you have other expansion
cards with ROMs on them, you will need to know which addresses
the ROMs use to shadow them specifically. When you shadow a ROM
it reduces the memory available between 640KB and 1024KB by the
amount used for shadowing.
After you have made your selections in BIOS Features Setup,
press the key to go back to the main screen. The next item is
Chipset Features Setup.
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