Chapter 8 BIOS ROM
Compaq iPAQ Series of Desktop Personal Computers
Review Copy - January 2001
8-2
8.2 IPAQ 2.0 FEATURES
The following features are unique to the BIOS of Compaq iPAQ 2.0 models:
♦
USB mouse support for DOS – USB mouse functionality is available outside of Windows.
♦ Hot-plugging of USB keyboards – USB keyboards may be added and recognized after system
boot.
♦ Booting from a ZIP 250 drive – This feature is selectable through the Setup utility.
♦
QuietDrive support – This feature is selectable through the Setup utility.
♦
BIS remote boot security support – This feature selectable through the Setup utility.
♦ I/O APIC mode support (PC2001 compliance) – This feature is selectable through the Setup
utility.
♦ ACPI S3 state support – This feature is selectable through the Setup utility.
♦ Secured NIC interface – The network interface controller may be disabled in the same manner
that other I/O (serial, parallel) ports are disabled for security purposes. This feature selectable
through the Setup utility.
♦ Fail-safe bootblock recovery – Recovery from a corrupted BIOS ROM is handled differently
in the iPAQ 2.0 units.
♦ De-asserted A20 address line (legacy-free models)
♦
Changeable splash screen
8.2.1 CHANGEABLE SPLASH SCREEN
On iPAQ 2.0 systems, the splash screen (image displayed during POST) is stored in the BIOS
ROM and may be replaced with another image of choice by using the Image Flash utility
(Flashi.exe). The Image Flash utility allows the user to browse directories for image searching and
pre-viewing. Background and foreground colors can be chosen from the selected image’s palette.
The splash screen image requirements are as follows:
♦
Format: Windows bitmap with 4-bit RLE encoding
♦
Size: 424 (width) x 320 (height) pixels
♦ Colors: 16 (4 bits per pixel)
♦ File Size: < 64 KB
The Image Flash utility can be invoked at a command line for quickly flashing a known image as
follows:
>\Flashi.exe [Image_Filename] [Background_ Color] [Foreground_Color]
The utility checks to insure that the specified image meets the splash screen requirements listed
above or it will not be loaded into the ROM.
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