Optima WO141PI, User Manual

Page: 87 / 240

BIOS Utilities
Advanced Menu 5 - 9
5
UMA Frame Buffer Size (Advanced Menu > Advanced Chipset Control)
Use this menu item to set the amount of system memory to be allocated for use by
the
integrated graphic system ( Model A & B computers).
Installed O/S (Advanced Menu)
This setting tells the computer what kind of operating system you’re using. Make
sure you choose the correct setting for your O/S in order to prevent system problems.
Note: If you select the
Vista O/S then the SATA Class ID menu will become avail-
able. If you are installing the Windows XP O/S make sure you have set the appro-
priate operating system here in order to prevent system problems.
SATA Class ID (Advanced Menu)
This menu is only available if you select the Vista O/S as your operating system.
You can configure SATA (Serial ATA) control to operate in either IDE native class
(native/compatible) or IDE-AHCI class (Advanced Host Controller Interface)
modes from this menu. The SATA mode should be set to IDE-AHCI class mode
for this system (unless you are sure your hard disk can only operate in IDE mode).
A driver is provided on the Device Drivers & Uti User’s Manual disc for
IDE-AHCI class mode. This driver must be installed when installing the Windows
Vista operating system (this is the most up to date driver for AHCI mode, however
Windows Vista will install an older driver as it installs the O/S). See “IDE-AHCI
Class Driver Installation (with Windows Vista O/S)” on page 5 - 11 for driver in-
stallation details (and see sidebar and overleaf).
SATA AHCI Driver
This driver needs to be
installed when installing
the O/S, however this
may have already been
done for you if your sys-
tem has
Windows Vista
pre-installed (contact
your service center for
information).
If you are re-installing
your O/S then you
should follow the proce-
dure on page
5 - 11 to
install the driver at the
beginning of the O/S in-
stallation procedure.