DFI PA33 User manual

PA33
Rev. A+
System Board
Users Manual
40400919

Copyright
This publication contains information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior
written permission from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any
express or implied warranties of merchantability or fitness for any
particular purpose.The user will assume the entire risk of the use or
the results of the use of this document. Further, the manufacturer
reserves the right to revise this publication and make changes to its
contents at any time, without obligation to notify any person or
entity of such revisions or changes.
© 1999. All Rights Reserved.
Trademarks
Microsoft®MS-DOS®, WindowsTM, Windows®95 and Windows®98
are registered trademarks of Microsoft Corporation. Intel®, Pentium®
II, Pentium®III and CeleronTM are registered trademarks of Intel
Corporation. Award is a registered trademark of Award Software,
Inc. Other trademarks and registered trademarks of products
appearing in this manual are the properties of their respective
holders.
Caution:
Danger of explosion if battery incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to the battery manufacturers
instructions.

FCC and DOC Statement on Class B
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to tr y to correct the interference by one or more of the
following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and the receiver.
 Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
 Consult the dealer or an experienced radio TV technician for
help.
Notice:
1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
2. Shielded interface cables must be used in order to comply with
the emission limits.

Table of Contents
Chapter 1 - Introduction
1.1 Features and Specifications..................................................................................
1.2 Package Checklist.........................................................................................................
Chapter 2 - Hardware Installation
2.1 System Board Layout .............................................................................................
2.2 System Memory.............................................................................................................
2.3 Processor Installation.................................................................................................
2.4 Frequency Ratio Settings for Processors................................................
2.5 Jumper Settings for the CPUs Front Side Bus................................
2.6 Jumper Settings for Clearing CMOS Data..........................................
2.7 Jumper Settings for AMR............................................................................................
2.8 Connecting the Ribbon Cables and Wires of the Ports
and Connectors.............................................................................................................
Chapter 3 - Award BIOS Setup Utility
3.1 The Basic Input/Output System.....................................................................
3.1.1 Standard CMOS Setup....................................................................
3.1.2 BIOS Features Setup..........................................................................
3.1.3 Chipset Features Setup....................................................................
3.1.4 Power Management Setup............................................................
3.1.5 PNP/PCI Configuration....................................................................
3.1.6 Load Fail-Safe Settings......................................................................
3.1.7 Load Optimal Settings......................................................................
3.1.8 Integrated Peripherals.........................................................................
3.1.9 Supervisor Password..........................................................................
3.1.10 User Password.........................................................................................
3.1.11 IDE HDD Auto Detection...........................................................
3.1.12 Save & Exit Setup.................................................................................
3.1.13 Exit Without Saving..............................................................................
6
11
36
36
40
44
46
50
51
52
52
57
57
58
59
59
12
13
15
17
19
20
21
22

65
65
67
60
63
64
64
Chapter 4 - Supported Softwares
4.1 Desktop Management Interface.....................................................................
4.2 VIA Hardware Monitoring System...............................................................
4.3 VIA Service Pack..........................................................................................................
4.4 Audio Drivers and Software Application...............................................
Appendix A - System Error Messages
A.1 POST Beep.......................................................................................................................
A.2 Error Messages..............................................................................................................
Appendix B - Troubleshooting
B.1 Troubleshooting Checklist....................................................................................

Introduction
1
6
1.1 Features and Specifications
1.1.1 Features
Chipset
 VIA®82C693/82C686 enhanced AGPset (PC-133)
Processor
The system board is equipped with a 242-pin Slot 1 processor slot
for installing an Intel Pentium

II/III processor or an Intel CeleronTM
processor. It is also equipped with a switching voltage regulator that
automatically detects 1.30V to 3.5V.
 450/100MHz, 500/100MHz, 550/100MHz, 600/100MHz,
533/133MHz or 600/133MHz Pentium®III processor
 233/66MHz, 266/66MHz, 300/66MHz, 333/66MHz, 350/100MHz,
400/100MHz or 450/100MHz Pentium®II processor
 266/300/300A/333/366/400/433MHz CeleronTM processor
(SEPP for Slot 1)
System Memory
 16MB to 512MB memory using VCM (Virtual Channel Memory),
unbuffered or registered DIMM
 Two 168-pin DIMM sockets
 Uses x64 or x72 PC SDRAM, 3.3V
: PC-66 SDRAM DIMM for 66MHz FSB processors
: PC-100 SDRAM DIMM for 100/66MHz FSB processors
: PC-133 SDRAM DIMM for 133MHz FSB processors
 ECC supported (uses x72 PC SDRAM DIMM)
Note:
If you are using more than one DIMM, make sure you insert
the same type of DIMMs into the DIMM sockets. Using
different types (VCM, unbuffered or registered) of DIMMs may
cause problems.
Chapter 1 - Introduction

1
Introduction
7
Expansion Slots
The system board is equipped with 1 dedicated AGP slot. AGP is an
interface designed to support high performance 3D graphics cards. It
utilizes a dedicated pipeline to access system memory for texturing,
z-buffering and alpha blending; delivering up to 533MB/sec.
bandwidth for 3D graphics applications. AGP in this system board
will deliver faster and better graphics with your PC.
The system board is also equipped with 2 dedicated PCI slots and
1 shared ISA/AMR slot. AMR (Audio/Modem Riser) is an interface
designed for installing an audio riser card, modem riser card or
audio/modem riser card that is compliant to the AMR specification.
Onboard Audio Features
 Supports Microsoft®DirectSound/DirectSound 3D
 AC97 supported with full duplex, independent sample rate con-
verter for audio recording and playback
ATX Double Deck Ports
 Two USB ports
 Two NS16C550A-compatible DB-9 serial por ts
 One SPP/ECP/EPP DB-25 parallel port
 One mini-DIN-6 PS/2 mouse port
 One mini-DIN-6 PS/2 keyboard port
 One game/MIDI port
 Three audio jacks: line-out, line-in and mic-in
Connectors
 One connector for IrDA interface
 Two IDE connectors
 One floppy disk drive connector suppor ts up to two 2.88MB
floppy drives
DIMMs
2MBx64/x72
4MBx64/x72
8MBx64/x72
16MBx64/x72
32MBx64/x72
Memory Size
16MB
32MB
64MB
128MB
256MB

Introduction
1
8
 One 20-pin ATX power supply connector
 One Wake-On-LAN connector
 CPU, chassis and AGP fan connectors
 Three CD audio-in connectors (2 Sony and 1 Mitsumi)
PCI Bus Master IDE Controller
 Two PCI IDE interfaces suppor t up to four IDE devices
 Supports ATA/33 or ATA/66 hard drives
 PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up
to 16.6MB/sec.)
 Bus mastering reduces CPU utilization during disk transfer
 Supports ATAPI CD-ROM, LS-120 and ZIP
IrDA Interface
The system board is equipped with an IrDA connector for wireless
connectivity between your computer and peripheral devices. It
supports peripheral devices that meet the HPSIR or ASKIR standard.
USB Ports
The system board is equipped with two USB ports. USB allows
data exchange between your computer and a wide range of
simultaneously accessible external Plug and Play peripherals.
BIOS
 Award BIOS, Windows®95/98 Plug and Play compatible
 Supports SCSI sequential boot-up
 Flash EPROM for easy BIOS upgrades
 Supports DMI 2.0 function
 2Mbit flash memory
Desktop Management Interface (DMI)
The system board comes with a DMI 2.0 built into the BIOS. The
DMI utility in the BIOS automatically records various information
about your system configuration and stores these information in the
DMI pool, which is a part of the system board's Plug and Play
BIOS. DMI, along with the appropriately networked software, is
designed to make inventor y, maintenance and troubleshooting of
computer systems easier. Refer to chapter 4 for instructions on using
the DMI utility.

1
Introduction
9
1.1.2 System Health Monitor Functions
The system board is capable of monitoring the following system
health conditions.
 Monitors processor/system temperature and overheat alarm
 Monitors VCORE/3.3V/5V/12V/2.5V voltages and failure alarm
 Monitors processor/chassis fan speed and failure alarm
 Automatic fan on/off control
 Read back capability that displays temperature, voltage and fan
speed
Refer to System Health Monitor in the Chipset Features Setup
section in chapter 3 and the VIA Hardware Monitoring System
section in chapter 4 for more information.
1.1.3 Intelligence
Automatic CPU/Chassis Fan Off
The CPU and chassis fans will automatically turn off once the system
enters the Suspend mode.
Dual Function Power Button
Depending on the setting in the Soft-Off By PWR-BTTN field of
the Power Management Setup, this switch will allow the system to
enter the Soft-Off or Suspend mode.
External Modem Ring-on
The Modem Ring-on feature allows the system that is in the
Suspend mode or Soft Power Off mode to wake-up/power-on to
respond to incoming calls.
Note:
This feature supports external modem only.
RTC Timer to Power-on the System
The RTC installed on the system board allows your system to
automatically power-on on the set date and time.

Introduction
1
10
Wake-On-LAN Ready
The Wake-On-LAN function allows the network to remotely wake
up a Soft Power Down (Soft-Off) PC. Your LAN card must support
the remote wakeup function.
Important:
The 5VSB power source of your power supply must support
≥ 720mA (minimum).
AC Power Failure Recovery
When power returns after an AC power failure, you may choose to
power-on the system manually or automatically. Refer to PWR Lost
Resume State in the Power Management Setup section in chapter 3
for more information.
ACPI
The system board is designed to meet the ACPI (Advanced
Configuration and Power Interface) specification. ACPI has energy
saving features that enables PCs to implement Power Management
and Plug-and-Play with operating systems that support OS Direct
Power Management.
Virus Protection
Most viruses today destroy data stored in hard drives. The system
board is designed to protect the boot sector and partition table of
your hard disk drive.

1
Introduction
11
1.2 Package Checklist
The system board package contains the following items:
þThe system board
þA users manual
þOne IDE cable for ATA/33 or ATA/66 IDE drives
þOne 34-pin floppy disk drive cable
þOne CD
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

2
12
Hardware Installation
2.1 System Board Layout
Chapter 2 - Hardware Installation

2
Hardware Installation
13
2.2 System Memory
The system board is equipped
with two 168-pin DIMM (Dual In-
line Memory Module) sockets that
support PC SDRAM DIMM. PC
SDRAM (Synchronous Dynamic
Random Access Memory) is a fast
memory interface technology that
uses the clock on the chip to
synchronize with the CPU clock so
that the timing of the memory
chips and the timing of the CPU
are synchronized. This saves time
during transmission of data, subsequently increasing system
performance.
The system board also supports the ECC (Error Checking and
Correction) function.To use this function, you must install DIMM that
supports parity. That is, DIMM that typically has 9 memory chips per
side. This kind of module has 8 standard memory chips and a parity
chip. DIMM with no parity has 8 standard memory chips only. Refer
to chapter 1 (System Memory section) for detailed specification of
the memory supported by the system board.
Warning:
Electrostatic discharge (ESD) can damage your system board,
processor, disk drives, add-in boards, and other components. Perform
the upgrade instruction procedures described at an ESD workstation
only. If such a station is not available, you can provide some ESD
protection by wearing an antistatic wrist strap and attaching it to a
metal part of the system chassis. If a wrist strap is unavailable,
establish and maintain contact with the system chassis throughout
any procedures requiring ESD protection.

2
14
Hardware Installation
1. Pull the tabs which are at the ends of the socket to the side.
2. Position the DIMM above the socket with the notches in the
module aligned with the keys on the socket.
3. Seat the module vertically into the socket. Make sure it is
completely seated.The tabs will hold the DIMM in place.
Pin 1
Notch
Key
Tab
Tab
2.2.1 Installing the DIM Module
A DIM module simply snaps into a DIMM socket on the system
board. Pin 1 of the DIM module must correspond with Pin 1 of the
socket.

2
Hardware Installation
15
2.3 Processor Installation
The system board is equipped with a 242-pin processor slot (Slot
1). The ends of the slot are installed with the Universal Retention
Mechanism (URM). URM is used to hold an Intel®SECC, SECC2 or
SEPP processor onto the slot.
Warning:
The processor must be kept cool by using a fan with heatsink.
Leave certain space clearances to maintain proper airflow once
the processor and heatsink are installed. All cables (for floppy
drive, hard drive, CD-ROM, etc.) must be routed clear of the
processor and its airspace. Otherwise, the processor will
overheat subsequently damaging the processor and the system
board.
2.3.1 Installing the Processor
1. Position the URM located at each end of Slot 1 into its upright
position.
Original
position
Upright
position

2
16
Hardware Installation
2. SECC processor:
Position the SECC processor above Slot 1 with the notch in
the processor aligned with the key on the slot. Push the
processor down firmly, with even pressure on both sides of the
top, until it is completely seated. Push the latches located on the
top sides of the processor outward until they click into place in
the URM.
SECC2 or SEPP processor:
Position the SECC2 or SEPP processor above Slot 1 with the
notch in the processor aligned with the key on the slot. Push
the processor down firmly, with even pressure on both sides of
the top, until it is completely seated. The sides of the processors
heatsink will click and lock through the slit of the URMs tab.
Make sure the slide is in the LOCK position.
Slit of the
URMs tab
Slide
2.3.2 Removing the Processor
SECC processor:
Push the latches on the top sides of the processor toward the
center until they click into place. Lift one end of the processor until it
is freed from Slot 1. Lift the other end of the processor until it is
freed from Slot 1. Lift the entire processor until it is free from the
URM.

2
Hardware Installation
17
SECC2 or SEPP processor:
Push the slide of the URM downward until it clicks into its OPEN
position. Lift one end of the processor until it is freed from Slot 1.
Lift the other end of the processor until it is freed from Slot 1. Lift
the entire processor until it is free from the URM.
Ta b
Slide
2.4 Frequency Ratio Settings for Processors
The table on the next page shows the supported processors and
their corresponding DIP switch settings (SW1).There are 4 switches
on SW1.The black rectangle in the diagram denotes the part that is
protruding, the adjustable switch. Make sure SW1 is set correctly
before applying power, otherwise you will not be able to power-on
the system.
Important:
The frequency ratio of some processors has been fixed by the
manufacturer. If you are using this kind of processor, the setting
in this field will have no effect.

2
18
Hardware Installation
Note:
Intel Pentium

II, Pentium

III and CeleronTM (SEPP) processors
support VID (Voltage Identification). The switching voltage regulator
on the system board will automatically set the voltage regulator
according to the voltage of the processor.
In the example above:
Switch 1: Off
Switch 2: Off
Switch 3: On
Switch 4: On
233MHz 350MHz 3.5x
266MHz 400MHz 4x
450MHz 4.5x
333MHz 5x
Processor SW1
66MHz 100MHz
Freq.
Ratio
5.5x
Processor SW1
66MHz 100MHz
Freq.
Ratio
400MHz
433MHz
Future
processor
Future
processor
6x
6.5x
7x
7.5x
8x
Future
processor
500MHz
366MHz
133MHz
533MHz
133MHz
Future
processor
Future
processor
Future
processor
Future
processor
Future
processor
Future
processor
Future
processor
Future
processor
Future
processor
--------
Future
processor
Future
processor
300MHz
300AMHz
550MHz
600MHz
600MHz

2
Hardware Installation
19
2-3 On
1-2 On All Off
1
2
3
1
2
3
1
2
3
2.5 Jumper Settings for the CPUs Front Side Bus
Jumpers JP2 and JP3
CPUs Front Side Bus Select
The default setting of jumpers JP2
and JP3 is Auto - the system will
automatically run according to the
FSB of the processor.
Warning:
Overclocking a 66MHz FSB processor to 100MHz or
133MHz will provide better system performance. However, not
all 66MHz FSB processors are capable of running at 100MHz
or 133MHz bus speed. Therefore, if you are unable to boot
your system when set at 100MHz or 133MHz, make sure to
set JP2 and JP3 back to their default setting.
JP2
1-2 On
2-3 On
All Off
1-2 On
JP3
1-2 On
2-3 On
2-3 On
All Off
Auto
66MHz
100MHz
133MHz

2
20
Hardware Installation
2.6 Jumper Settings for Clearing CMOS Data
Jumper JP4
Clear CMOS Data
If you encounter the following,
a) CMOS data becomes
corrupted;
b) You forgot the supervisor
or user password;
c) You are unable to boot-up
the computer system
because the processors
bus clock was incorrectly
set in the BIOS;
you can reconfigure the system
with the default values stored in the ROM BIOS. Please follow the
steps below.
1. Power-off the system and unplug the power cord.
2. Set JP4 pins 2 and 3 to On. Wait for a few seconds and set JP4
back to its default setting, pins 1 and 2 On.
3. Plug the power cord and power-on the system.
If your reason for clearing the CMOS data is due to incorrect
setting of the processors bus clock in the BIOS, please proceed
to step 4.
4. After powering-on the system, press <Del> to enter the BIOS
setup utility.
5. Select the Chipset Features Setup submenu and press <Enter>.
6. Set the CPU/PCI Clock (MHz) field to its default setting or an
appropriate bus clock. Refer to CPU/PCI Clock (MHz) in the
Chipset Features Setup section in chapter 3 for more
information.
7. Press <Esc> to return to the main menu of the BIOS setup
utility. Select Save & Exit Setup and press <Enter>.