Compal ACY25 series, Руководство по обслуживанию

Страница: 19 / 175

Chapter 2-10
EEPROM
There is one EEPROM which is used to store many important system and user data in the
notebook The size of the EEPROM is 2K bytes.
Password Protection
Password and Security support will be implemented in this model. See the PhoenixBIOS 4.0
User Manual for sample screen and the description of Password and Security support.
VGA Support
This section describes the expected behavior when a video monitor is connected to the VGA
port on the notebook or port replicator.
The BIOS will use both of the RGB and pin 11 methods to determine the presence of an
external VGA monitor. Either case meet will indicate an external VGA monitor is present.
The BIOS setup utility will have a menu for setting up the behavior of the external VGA port
according to user preference. There are two settings:
Setting 1, AUTO: Auto-select External VGA if attached(CRT only), LCD if external not
attached.
Setting 2, BOTH: Both External VGA and LCD always on.
When setting 1 is selected the BIOS will automatically turn the internal display off and the
external monitor on, whenever an external monitor is detected. Otherwise it will enter LCD
only mode (with the backlite off if the cover lid is closed). This means that the BIOS must
check for the external video being present during POST; on resume from standby, on resume
from suspend to RAM, on resume from hibernate; on warm dock, on hot dock, on hot undock,
and on warm undock.
When setting 2 is selected, the BIOS will always turn on both the internal display and external
monitor regardless of whether an external monitor is detected.
The hot key for switching the external video (Fn + F5) must only make a temporary change. It
must not change the user
′
s preference in CMOS, it will just change the current state of the
external video port. Also the hot key must not check to see if an external monitor is detected
before switching to external only mode. It should just toggle between internal only, both, and
external only (without regard to monitor detect). The hot key setting will not survive suspend
to RAM, hibernate. In these cases the mode should be set back to the setting stored in
CMOS.
Internal Pointing Device Support
Added a new BIOS setup to enhance the PS/2 pointing devices
PS/2 Pointing Devices:
Auto-Selected: Disable internal pointing devices if external PS/2 mouse is present.
Simultaneous: The internal pointing device is always enabled. Any external pointing device
connected will also be enabled at the same time.
•
If an external PS/2 mouse is detected, it will be enabled. If USB mice are detected, they
will be enabled as well. If an external mouse contains a third mouse button, it will function
as expected.
•
Double click the Mouse icon in the Windows2000/XP Control Panel to adjust pointer
speed, double click speed, right-handed versus left-handed button settings, and pointer
appearance. The settings in this applet apply to all the external and internal pointing
devices in the system. Except as described below, there are no individual pointing device
adjustments available.
•
Tapping (or double tapping) on the TouchPad is equivalent to a single (or double) left
mouse click. The Synaptics TouchPad driver will be available on the hard drive and the