Miscellaneous Features; Single Bios Rom; Usb Support; Flash Utility - One Bios Rom Only - Compal JHL90 Service Manual

8.

Miscellaneous Features

8.1

Single BIOS ROM

The system BIOS and Keyboard BIOS share one single flash ROM. The size of
the flash ROM is 2MB.
8.2

USB Support

This feature allows the use of a USB keyboard to access BIOS Setup and to be
used in DOS without additional drivers.
USB floppy boot and Crisis Recovery from USB Flash Disk is also supported.
The driver provides other USB devices support after loading the operating system.
8.3

Flash utility - one BIOS ROM only

The flash utility can be used to program both system and keyboard BIOS at the
same time.
8.4

Crisis Recovery

This feature provides an opportunity for system that cannot boot up. With a crisis
Flash Disk, the system can perform crisis recovery by using internal PS2
keyboard.
To perform crisis recovery using keyboard, do the following:
Power off the system.
Plug-in the USB Flash Disk with crisis image installed.
Hold down Fn + B keys.
Plug-in AC adapter and make sure it is powered.
Power on the system from off state (i.e. cold boot) while holding down <Fn+B>
key.
After POST, release <Fn+B> key. The system should boot from USB Flash Disk
and perform crisis recovery action.
8.5

VGA Support

This section describes the expected behavior when a video monitor is connected
to the VGA port on the notebook .The feature needs VGA driver support
The BIOS will use both the RGB and pin 11 methods to determine the presence of
an external VGA monitor.
JHL90 Service Manual
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