Acorp 6VIA90A User manual

Chapter 1 Introduction / 1
Introduction
How This Manual is Organized
This manual is divided into the following sections:
Chapter 1 Introduction : Manual information and checklist.
Chapter 2 Features : Information and Specifications con-
cerning this mainboard.
Chapter 3 Installation : Instructions on setting up the board.
The mainboard is a high-performance mainboard based on the ad-
vanced Socket 370 microprocessor, the VGA, Audio , PCI Bus and
the VIA 694X chipset.
1
Chapter 1

2 / Chapter 1 Introduction
Package Checklist
Please check that your package is complete . If you discover any item
damaged or missing , please contact with your retailer immediately.
The 6VIA90A mainboard.
The USB2 conector with bracket (option).
1 x IDE UDMA66 ribbon cable.
1 x floppy ribbon cable.
CD drivers and utilities.
This user's Manual .

Chapter 2 Features / 3
2
Chapter 2
Features
Features of the 6VIA90A Mainboard
VIA 694X chipset supports 66/100/133MHz FSB, UltraDMA66
AGP4X.
Supports Intel's processor designed for socket 370 and package in PPGA/
FCPGA.


Integrated H/W monitor compensation engine.


support "Touch Button Wake up" for soft power on/off and sus-
pendmodemultifunction.(option)

4 / Chapter 2 Features


support Resume by Ring through Modem.


Use 168-Pin DIMM modules (supprts Intel PC100/133-com-
pliant SDRAMs) x3 .
5x PCI Bus slots, and 1 x AMR (Audio Modem Riser) slots.
1 x ISA Bus slots.
All 5 PCI slots support Master mode.
System BIOS support 4 IDE harddisk drivers that don't need de-
vice driver for S/W application.
PCI Bus master IDE interface on board with two connectors sup-
port 4 IDE devices in 2 channel, the PCI IDE Controller supports
PIO Mode 0 to Mode 4, Bus master IDE DMA Mode 2 and Ultra
DMA 66MB
Support PS/2™ mouse Connector.
System BIOS supports LS-120, ZIP driver firmware and Green
feature function, Plug and Play Flash ROM.


AC'97 DAC built into the audio CODEC reduces noise to
improve audio quality and performance for a SNR (singal
to noise ratio) of +90dB. These features greatly improve
voice synthesis and recognition. If more quality is required,
an optional on-board Cyrstal PCI audio improves audio
quality beyond software audio.
Support Software Virus Warning in BIOS
Support ACPI functionStatic Electricity Precautions

Chapter 3 Installation / 5
Installation
3
Chapter 3
Jumper
Jumper Refer to pages
JBAT1 - CMOS Clear 10
BSEL0-1 - CPU Type selection 15
JCK1-4 - CPU bus frequency selection 16
J2 - AMR Type Selection 17
J3, J4 - Onboard AC'97 Selection 17
FAN1 - FAN Connector 21
FAN2 - FAN Connector 21
J6 - IrDA Connector 22
WOL1 - Lan Card Wake Up 26

6 / Chapter 3 Installation
Expansion Slot 

Refer to pages
PCI SLOT 1,2,3,4,5 -32bits PCI SLOT 19
ISA SLOT 1 -16bits ISA SLOT 19
AMR SLOT - Audio Modem Riser Slot 19
Connectors Refer to pages
PS1 - PS/2 Mouse port (UP) 20
PS1 - PS/2 AT
(mini DIM) Keyboard port (DOWN) 20
COM1 - COM 1 serial port 20
COM2 - COM 2 serial port 20
USB - Universal Serial BUS Ports 1 & 2 20
USB2 - Universal Serial BUS Ports 3 & 4 20
PRINT - Parallel port 20
FDC - FLOPPY connector 20
IDE1 - Primary IDE connector 21
IDE2 - Secondary IDE connector 21
PANEL1 - HDD LED 23
PANEL1 - SMI Switch 23
PANEL1 - Reset Switch 24
PANEL1 - Speaker Connector 24
PANEL1 - Power LED 24
PW1 - ATX Power Connector 24
PANEL1 - ATX Power switch 24
CD_IN1 - Audio Connector 25
CD_IN2 - Audio Connector 25

Chapter 3 Installation / 7
The 6VIA90A Mainboard Layout
USB
COM1
COM2
AMR SLOT
AGP1
JACK1
JACK2
JACK3
B: K/B
T: Mouse
Printer
PANEL1 J6
FAN1
BSE1
JBAT1
JCK1
JCK2
JCK3
JCK4
WOL1 FAN2
GAME1
BIOS
ISA SLOT1
VIA
VIA
PCI SLOT2
PCI SLOT1
PCI SLOT3
PCI SLOT4
PCI SLOT5
BSE0
J4
J3
J2
JVI02

8 / Chapter 3 Installation
The 6VIA90A Mainboard Layout
System Installation Setup
Before using your computer, you must finish the following steps:
1. Set jumpers on mainboard
2. Install SDRAM module.
3. Install the Processor.
4. Connect Ribbon Cables, Cabinet Wires, and Power supply.
5. Install Add on Cards.
6. Setup the BIOS software.
Static Electricity Precaution
Keep the mainboard and other system components in their anti-
static packaging until you are ready to install them.
Do all preparative work on a static-free surface with the main
board components facing up.
Unplug your computer when working on the inside.
Wear an Anti-static wrist strap.
Hold the system components, boards or cards by its edges only.
Be careful not to touch any of IC chips, circuitry, contacts or
connections, especially gold contacts on the mainboard.

Chapter 3 Installation / 9
Jumper Settings
Jumpers
The several hardware setting are made through the use of jumper
caps to connect jumper pins (Jxx) on the mainboard. See " Map of the
mainboard" for locations of jumpers.
The jumper settings will be described numerically such as [----], [1-2],
[2-3] for no connection, connect pins 1 & 2, and connect pins 2 & 3
respectively. Pin 1 for our mainboard is always on top one or on the
left when holding the mainboard with the keyboard away from
yourself. "P1" is written besides pin 1 on jumper with three pins. The
jumpers will also be shown graphically such as to connect pin
1&2 and to connect 2&3. Jumpers with two pins will be shown
as for Short (on )and for Open (off).For manufacturing
simplicity may be sharing pins from other groups. Use the diagrams
in this manual instead of following the pin layout on the board. Set-
tings with two jumper numbers require that both jumpers be moved
together. To connect the pin, simply place a plastic jumper cap over
the two pins as diagrammed.

10 / Chapter 3 Installation
Real Time Clock (RTC) RAM - JBAT1 :
The CMOS RAM is powered by the onboard button cell battery. To
clear the RTC data:
(1)Turn off your computer, (2) Move this jumper to "2-3Pin Clear
Data", (3) Move the jumper back to "Default", (4) Turn on your
computer, (5) Hold down <Delete > during bootup and enter BIOS
setup to re-enter user Preferences.
USB
COM1
COM2
AMR SLOT
AGP1
JACK1
JACK2
JACK3
B: K/B
T: Mous e
Printer
FAN1
BSE1
JCK1
JCK2
JCK3
JCK4
WOL1 FAN2
GAME1
BIOS
ISA SLOT1
VIA
VIA
PCI SLOT2
PCI SLOT1
PCI SLOT3
PCI SLOT4
PCI SLOT5
BSE0
J4
J3
J2
PAN E L1 J6
JBAT1
JVI02
P1
P1
JBAT1 CMOS Clear
1-2 (default) Normal
2-3 Clear CMOS