Hardware Document
RPR404-IB1
Product Engineering Team
TriGem Computer Inc.
9 /
17
Revision 1.1
2-3 BIOS
The motherboard uses a TriGem-AMI BIOS, which is stored in flash memory and can be upgraded using a disk-
based program. A new version of the BIOS can be upgraded from a diskette using the Flash Memory Update
utility.
T
Flash memory organization
Address (Hex)
Size
Functional description
FFFF0000 - FFFFFFFF
64KB
Boot block
FFFA0000 - FFFEFFFF
256KB
Main BIOS block
FF9F0000 - FFF9FFFF
8KB
Used by BIOS (Event logging)
FFF9E000 - FFF9EFFF
8KB
OEM logo or can flash area
FFF9C000 - FFF9DFFF
16KB
DMI configuration data, PnP,
FFF90000 - FFF9BFFF
96KB
Fault tolerant storage
FFF80000 - FFF8FFFF
64KB
Fault tolerant backup block
T
On-board device management
The BIOS can manage the devices on the motherboard over the CMOS setup menu. However the
corresponding jumper as described Jumper setting section later can disable the built-in AGP graphics
controller.
Device
Description
CMOS setup menu
Default value
Internal Cache
Celeron PPGA Processor
Enable / Disable
Enabled
PS/2 Mouse
Intel 82371EB (PIIX4e)
Enable / Disable
Enabled
USB Function
Intel 82371EB (PIIX4e)
Enable / Disable
Enabled
On board Sound
CS4281 with CS4297A Codec
Enable / Disable
Enabled
On board FDC
Super I/O (IT8673F-A)
Auto / Enable / Disable
Auto
On board serial
Super I/O (IT8673F-A)
Auto / 3F8 / 2F8 / 3E8 / 2E8
Auto
On board parallel
Super I/O (IT8673F-A)
Auto / Disable / 378 / 278 / 3BC
Auto
On board IDE
Intel 82371EB (PIIX4e)
Disable / Primary / Secondary / Both
Both
2-4.
Expansion Slot
The motherboard support ISA, PCI and AGP function. ISA and PCI functions are extended to the additional slot
with two ISA and two PCI, and AGP function is designed in the motherboard with AGP graphics controller.
T
PCI configuration space map
Bus number
Device number
Function number
Device
00
00
00
Intel 82443LX
00
01
00
Intel 82371EB (PIIX4e)
00
07
00
PCI/ISA bridge (PIIX4e)
00
07
01
IDE bus master (PIIX4e)
00
07
02
USB (PIIX4e)
00
07
03
Power management (PIIX4e)
01
00
00
ATi Rage Pro Turbo graphic controller (AGP)
00
13
00
PCI slot1
00
12
00
PCI slot2
