IWILL XA100 Ultra ATA-2 User manual

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EC Declaration of Conformity
We
Iwill Corp.
No. 10, Wu-Chuan 3 Rd.,
Hsin-Chuang City,
Taipei, Taiwan R.O.C.
declare under sole responsibility that the
XA100 motherboard
meets the intent of Directive 89/336/ECC for Electromagnetic Compatibility. Compliance was
demonstrated to the following specifications as listed in the official Journal of the European
Communities:
EN 50081-1 Emissions:
EN 55022 Radiated, Class B
EN 55022 Conducted, Class B
EN 60555-2 Power Harmonics
EN 50082-1 Immunity:
IEC 801-2 Electrostatic Discharge
IEC 801-3 RF Radiate
IEC 801-4 Fast Transient

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About This Manual
This manual will introduce to the users how this XA100 Ultra ATA-2 ( Ultra DMA 33 ) and 100
MHz bus motherboard is manufactured. All useful informations will be described in later chapters.
Keep this manual for your future upgrade or system configuration change.
The Quick Installation chapter ---
This chapter provides a quick reference for experienced users. Please follow the instructions
while installing the system.
The Overview chapter ---
This chapter describes the features and specificaton of this Ultra DMA 33 motherboard.
The Hardware Installation chapter ---
The hardware detail specification and connection are described in this chapter.
The AMI BIOS Setup chapter ---
This chapter presents clear AMI BIOS setup options. Usually the manufacture default s are the
best choices for most users.
The chapter Appendix ---
Useful information will be added in this chapter for your reference.
Warning
Most of the features of this motherboard have passed strict verification and are subject to change at any time without notice. If any
malfunction occurs due to the future technical changes made by the respective component manufacturers, Iwill assumes no
responsibility or liability for it.
Version
This manual is written to go with Iwill’s XA100 motherboard Version.1.1.
Trademarks
IWILL and the IWILL logo are trademarks of IWILL Corporation, which is registered in the United State of America and some
other countries with some jurisdictions.
ALI and Aladdin are trademarks of ALI Corporation.
Microsoft and Windows are trademarks of Microsoft Corporation
All other trademarks are owned by their respective owners.
Copyright
Copyright 1997 IWILL Corporation. All right reserved. No part of this publication may be reproduced, stored in a retrieval tape, disk,
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior
written consent of IWILL USA Corporation. 1542 #B Edinger, Tustin, CA 92680
Changes
The content in this manual document is for the information only and is subject to change without notice. IWILL Corporation
assumes no liability resulting from errors or omissions in this document or from the use of the information contained herein, even
reasonable efforts had been made in the preparation of this manual.
IWILL Corporation reserves the right to change the product design without reservation and without notification to its users.

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Content
CHAPTER 0.................................................................................................5
OVERVIEW.................................................................................................5
0.1 FEATURES ..............................................................................................5
0.2 SPECIFICATIONS......................................................................................7
0.3 PLACEMENT OF XA100...........................................................................8
0.4 CONNECTORS AND JUMPERS DESCRIPTION...............................................9
0.5 UNPACK THE XA100.............................................................................10
CHAPTER 1...............................................................................................11
QUICK INSTALLATION..........................................................................11
1.1 PLACEMENT FOR XA100.......................................................................11
CHAPTER 2...............................................................................................19
HARDWARE INSTALLATION ................................................................19
2.1 PREPARATION AND INSPECTION .............................................................19
2.2 PLACEMENT .........................................................................................20
2.3 CPU GROUP .........................................................................................21
2.4 L2 CACHE MEMORY.............................................................................25
2.5 D-RAM CONFIGURATION .....................................................................25
2.6 IDE INTERFACE....................................................................................25
2.7 USB (UNIVERSAL SERIAL BUS) CONNECTION .......................................26
2.8 ENHANCED MULTI-IO CONNECTION .....................................................27
2.9 OTHERS ...............................................................................................28
CHAPTER 3...............................................................................................33
AMI BIOS SETUP .....................................................................................33
3.1 SETUP UTILITY ................................................................................35
3.2 STANDARD CMOS SETUP.....................................................................37
3.3 BIOS FEATURES SETUP..........................................................................39
3.4 CHIPSET SETUP.....................................................................................43
3.5 POWER MANAGEMENT SETUP...............................................................45
3.6 PCI/PNP SETUP....................................................................................48
3.7 INTEGRATED PERIPHERALS SETUP.........................................................51

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CHAPTER 0
Overview
Thank you for purchasing Iwill XA100 Ultra DMA 33 Motherboard. This operation manual will
instruct you how to configure and install properly. It contains an overview about the engineering
design and features of this board. Also, this manual provides useful information for later on
upgrade or configuration change. Keep this for your future need.
0.1 Features
This XA100 Ultra DMA 33 motherboard is your best choice for optimizing media rich
performance desktop on the socket 7 processor with the new MMX technology. It incorportes with
ALI Aladdin V PCI set with I/O subsystem that supports for processor external working frequency
up to 100MHz.
To run faster bus speed is a great plus in this XA100 motherboard. It not only can run the 66MHz
bus that Intel claims on all her highest system bus but also built in 75MHz, 83MHz and 100MHz
bus speed as an option for users to take advantage of.
In order to support all the legacy ISA devices well available today, there are 3 ISA slots for great
expansion ability.
The concurrent PCI (PCI 2.1) reduces CPU latencies for smoother video and more realistic audio,
and Universal Serial Bus (USB) technology makes Plug and Play peripheral connections a reality.
Besides, run with faster system memory is another feature on this Pentium EIDE Motherboard to
outperform the whole system performance. It equips with three of the 168-pin DIMM memory
sockets that support the new 3.3V, unbuffered Synchonous DRAM.
The onboard two IDE channels support UltraDMA/33 that enhances the data transfer rate to 33
Mbytes, which is new technology and is compatible with the existing ATA-2 IDE specification.
It fully supports plug and play I/O that contains two high speed serial ports, one ECP/EPP printer
port, up to 2.88 floppy disk port, and keyboard. And the real time clock is used for users to enjoy
the plug and play function. This Pentium EIDE, Ultra DMA 33 motherboard is designed to be
compliant with ATX specification to improve the easy access memory module, long add-on card
support and some of the new features that traditional AT form factor can not achieved.
It is a powerful combination of performance, quality and innovative design to address the need of
today’s market. Current Intel, Cyrix, AMD processors with MMX technology supported, 512K

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external Level 2 Pipelined Burst Fast Write-Back Cache, 64 bit Burst Bus DRAM and enhanced
IDE with 2 channels and plug and play Ultra I/O, this EIDE Motherboard brings exceptional
processing power that could only be achieved by Mini-computer. Incorporating the new emerging
industrial standard Peripheral Component interconnect (PCI) Local Bus together with the standard
16-bit Industrial Standard Architecture (ISA), this motherboard dramatically boots system I/O
through for even the most demanding application in today’s market.
n CPU:
CPU socket (socket 7) supports the flexibility of different types of current Cyrix (M1, M2), AMD
(K5, K6) and Intel Pentium, Pentium with MMX processor. Please follow the installation steps
introduced either in Chapter 1 or Chapter 2 to set the CPU frequency.
n CHIPSET:
ALI Aladdin V PCIset with I/O subsystem chipset is used on this motherboard.
n BIOS:
AMI BIOS, on-screen "Plug & Play" setup for Enhanced IDE, and Ultra Multi-IO. Support Flash
ROM ( This ROM provides better upgrade ability for users to update their BIOS data on the system
board, users can down-load/ update newer version BIOS from Internet or diskette file.
n Cache memories:
High performance write-back second Level external static RAM cache. This supports 512KB
Synchronous Pipelined Burst Cache on-baord. The cacheabe size can achieve up to 512 MB. It
also supports 32 bit power-on function, that is, one DIMM will be able to power on the PC.
n Memories:
3 X 168-pin DIMM (Dual In Line Memory Module) (Rev 1.1)
Support system memory up to 512MB (minimum of 8MB ) on board with either fast page mode,
EDO or the new Synchronous DRAM with DIMM socket (3.3V un-buffered type).
Support 32 bit power-on function. For example, one DIMM is able to power on the computer.
n AGP (Accelerated Graphic Port) slot:
1 X 124-pin expansion slot, which provides high performance bus for graphics devices and is
designed primarily for 3D applications.
n Expansion slots:
This motherboard provides :
3 X 16-bits ISA slots, 4 X 32-bits PCI slots
n Switching DC/DC Voltage Regulator for CPU:
Effeciently cool down CPU temperature and increase system stability
n IDE functions:
Two 40-pin box-header connectors are provided for IDE devices. They are separatedly defined as
the Master/ Slave, if two IDE devices are in the same channels, or the two IDE devices can be the
same Master but in different channels. The LED will light on when the IDE devices were in writing
/ reading.
Support UltraDMA 33 MB/SEC data transfer rate
Built in dual PCI Bus Master EIDE Channels.

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Support ATAPI (AT Attachment Packet Interface)
n USB interface (Universal Serial Bus):
Plug and Play devices outside the computer box
Up to 12Mbit
Easy of use
n Power Connectors:
Support remote power on connector. ATX power supply connector is needed
n Floppy Interface:
Support both 3 1/2" and 5 1/4" floppy disk drives and Tape Drive (360K / 720K/ 1.2M / 1.44M /
2.88MB)
Enabled/Disable selectable from system BIOS
Non-Burst Mode DMA Option,16 Byte Data FIFO
n Serial Port:
Two high speed 16550 UART serial port
IRQ selectable from BIOS.
Address changeable form system BIOS
NS16C550 compatible, Programmable Baud Rate Generator
n Parallel Port
IRQ selectable for IRQ5(278h), IRQ7(378h) from system BIOS.
Standard mode--Compatible with IBM PC/AT Printer port
EPP Mode --Enhanced Parallel Port compatible(EPP) compatible IEEE 1284
ECP Mode --Microsoft & Hewlett Packard Extended Capabilities Port (ECP) Compatible
Incorporates ChiProtect Circuit for protection against damage due to printer power-on
0.2 Specifications
lPhysical Dimensions:Length: 180mm / Width: 305mm
lEnvironmental Requirements:
Temperature 0-55 degrees C (operating or storage)
5% to 95% non-condensing relative humidity

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0.3 Placement of XA100
ISA
FAN3
PWR ON
FAN1
BIOS
FAN2
FDC
IDE0
IDE1
PCI
AGP
F. Panel
PS/2 Mouse
PS/2 Keyboard
USB
Serial 1
Serial 2
LPT
Socket 7
ATX P.
IR
DIMM 3
DIMM 2
DIMM 1
J1
J2
JP1
JP4

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0.4 Connectors and Jumpers Description:
Connector Function Description
AGP: 124-pin expansion slot, for graphics devices and is designed primarily for 3D
applications.
ATX P.: 20-pin Standard ATX power input connector
BIOS: BIOS (Basic Input Output System)
DIMM1: 64 bit Dual In-line Memory Module.
DIMM2: 64 bit Dual In-line Memory Module.
DIMM3: 64 bit Dual In-line Memory Module.
Fan1: (J39 ) A 3-pin power connector for Processor fan.
Fan2: (J40) A 3-pin power connector for system fan to release the hot air.
Fan3: (J41) A 3-pin power connector for system fan to absorb the cold air
FDC: 34-pin key-protected Floppy disk drive connector
F Panel: Front panel signal control connector
RST—Reset Switch
IDE LED—IDE LED
P. LED—Power LED
SPEAKER—Speaker connector
IDE0: 40-pin key-protected for Primary IDE connector
IDE1: 40-pin key-protected for Secondary IDE connector
IR: 6-pin Infrared connector
ISA: 3 x ISA (Industrial Standard Architecture) 98-pin expansion slot
LPT: 25-pin D-Sub connector for Parallel port connector
PCI: 4 x PCI version 2.1 compliance 120-pin PCI (Peripheral Component Interface)
expansion slot
PS2 Mouse: 6-pin PS/2 Mouse Mini-DIN connector
PS2 KB: 6-pin PS/2 Keyboard Mini-DIN connector
PWR ON: 2 -in remote power on switch
Serial 1: 9-pin D-Sub connector for serial 1 port connector
Serial 2: 9-pin D-Sub connector for serial 2 port connector
Socket 7: 321-pin socket 7 CPU socket
USB: two sets 4-pin Universal Serial Bus connector
Jumper Setting
JP1 CMOS Clear Jumper
JP4 5V/12V BIOS voltages select
J1 CPU Frequency select
J2 CPU Voltage Select

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0.5 Unpack the XA100:
You should find the following components when open the box:
(1) XA100 Motherboard.
(2) This Operation Manual
(3) 40-pin internal IDE signal cable.
(4) 34-pins internal Floppy Disk Drive signal cable.

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CHAPTER 1
Quick Installation
Several easy installation steps will be described in this chapter to help the experienced users for
quick installation. If you are a beginner and need to know more about this motherboard, please start
from Chapter 2.
1.1 Placement for XA100
ISA
FAN3
PWR ON
FAN1
BIOS
FAN2
FDC
IDE0
IDE1
PCI
AGP
F. Panel
PS/2 Mouse
PS/2 Keyboard
USB
Serial 1
Serial 2
LPT
Socket 7
ATX P.
IR
DIMM 3
DIMM 2
DIMM 1
J1
J2
JP1
JP4

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Quick Installation
Step 1. Install CPU
Pull up the CPU handle bar, place the CPU into the socket in gentle and horizontal way then pull
down the handle bar back to its original place. When you insert the CPU, make sure they are
conncected thouroughly in the right direction.
CPU Cooler is required to be placed on the top of the
CPU all the times to prevent CPU from over-heating.
CPU
Step2. Install CPU Coolers
On this XA100 motherboard, there are three fan connectors:
J39 for Fan 1 is to cool down the CPU; J40 for Fan 2 and J41 for Fan 3 are to release the heat
produced by power supply and other components inside the computer chassis.
Hook the CPU Cooler’s power cable to the connector marked “FAN 1”.
SENSE
+12V GND
Fan3
(J41)

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Step 3. Adjust the CPU Voltage
Jumper J2 is designed for users to set the proper voltage for the processor installed. A wrong
voltage setting will cause fatal damage to the CPU permanently.
There are total 7 different voltage selections in this XA100 motherboard to support full socket 7
processors that are avaialble today and in the near future.
If an Intel Pentium with MMX dual voltage processor is installed, please set to 2.8V.
If a AMD K6 with MMX dual voltage (166 and 200MHz) processor is installed please set to 2.9V.
If a AMD K6 with MMX dual voltage (233 and 266MHz) processor is installed please set to 3.2V.
If a AMD new generation K6 with MMX dual voltage (233 and 266MHz) processor is installed
please set to 2.2V.
If an Intel Pentium, AMD or Cyrix single voltage processor is installed please set to 3.5V.
2.7V and 1.8V are reserved for future use.
3.5
3.2
2.9
2.8
2.2
1.8 2.7
Step 4. Adjust the CPU Frequency
J1 is a 2x12-pin jumper. The upper four blocks of J1 are for processor External Frequency selection,
and the others are used to select processor’s Multiplier. This motherboard supports four External
Frequency: 66 MHz, 75 MHz, 83 MHz and 100 MHz. Regarding the External Frequency and
Multiplier for different processors, please refer to the following table.

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Intel AMD
External Freq. Multiplier External Freq. Multiplier
133 66 2 K5 166 66 2.5
166 66 2.5 K6 166 66 2.5
200 66 3 K6 200 66 3
233 66 3.5 K6 233 66 3.5
K6 266 66 4
K6 300 100 3
K6 350 100 3.5
K6 400 100 4
Cyrix IDT
External Freq. Multiplier External Freq. Multiplier
M1 PR166 66 2 200 66 3
M2 PR166 66 2
M1 PR 200 75 2
M2 PR 200 75 2
M2 PR 233 75 2.5
M2 PR 266 83 2.5
( Note: Freq. stands for Frequency.)
For example, if your CPU is Intel Pentium MMX 166, which means 66MHz (its external bus speed )
x 2.5 (multiplier). So, for an Intel Pentium MMX 166 CPU holder, the only act users need to do is
to place one jumper cap on the position marked “66MHz”and the other jumper cap on the position
marked “x 2.5”on J1.

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x 5.5
x 5
x 4.5
x 4
x 3.5
x 3
x 2.5
x 2
75M
66M
83M
100M
Multiplier
External Frequency
Step 5. Install the Memory Module
At least one piece of 168-pin DIMM (Dual In-line Memory Module ) must be inserted in this
XA100 Ultra DMA 33 motherboard.
Step 6. Install the Internal Peripherals
The internal peripherals means devices that are in the computer chassis such as the Floppy Disk
Drive, Hard Disk Drive, CD ROM Drive *etc. Within this motherboard package, There are one 34-
pin flat cable for floppy disk drive and one 40-pin flat cable for IDE devices included in your retail
package. Use these cables to connect the motherboard and internal devices.
The protect key on cables’connector will guide you the correct direction when you insert the
cables.

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Step 7. Install the External Peripherals
The external devices mean devices that are outside the computer chassis like the Serial mouse,
Printer, PS/2 Mouse, External Modem and etc.
Serial 1
PS/2
Mouse
PS/2
Keyboard
Parallel Port
Serial 2
USB
USB
Step 8. Connect the Reset switch
Most computer chassis provides a reset switch on their front pannel control. Connect the button
with provided 2-pin twisted wire to the header marked RST on motherboard for RESET function.
When the button is on, the motherboard resets and will restart the computer.
RST
IDE LED
SPEAKER 1
1PWR LED

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Step 9. Connect the Speaker
Connect the speaker to the motherboard’s speaker connector. (Normally the red cable is +5V
power)
Step 10. Connect the Power LED
Most computer chassis provides a power LED to identify if the system is on or off. The power LED
lights up when computer is powered on. Connect the power LED to the motherboards’s power
LED connector. (normaly the red cable is +5V power)
Step 11. Connect the IDE LED
This header can be connected to the IDE device LED on front panel.
The LED shows activities of ( read from or write to ) an IDE device.
Step 12. Connect the Power On Button
All the ATX computer chassis provide a power on switch. Connect the header marked “PWR-
ON”to the switch.
Step 13. Connect the Power Supply
This motherboard provides the new 20-pin ATX power connector. Once the ATX power supply is
plugged into this ATX power connector then the poer on connector is necessary to be connected to
wrok as the power On/Off switch.
Step 14. Connect the Keyboard
Follow the keyboard cable’s key direction and connect to this motherboard.
Serial 1
PS/2
Mouse
PS/2
Keyboard
Parallel Port
Serial 2
USB
USB
Step 15. Install the Display Card (ISA/PCI/AGP)
Insert the display card you have in vertical direction into the PCI/ISA expansion slot. Another
option provided for you to get higher performance for graphic-intensive applications in the system
is to insert the AGP card on the AGP (Accelerated Graphics Port) slot, which is designed intently
for exclusive use for display adapter.

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Step 16. Power on the system
Once the system is powered on, on the lower left corner of the screen will show ”Press <DEL> to
enter SETUP, <ESC> to skip memory test.”Then press “DEL”to enter BIOS setup for the first
time power on and choose the “LOAD SETUP DEFAULTS,”then BIOS will respond “Load
SETUP default (Y/N)?”, press “Y”and “Enter.”Followed with message “SAVE to CMOS and
EXIT (Y/N)?”Then press “Y”and “Enter”. Your system will now re-start with default settings
and we wish you to enjoy it.

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CHAPTER 2
Hardware Installation
2.1 Preparation and Inspection
This XA100 Ultra DMA 33 Motherboard, like all electronic equipments, is static sensitive. Please
take the proper precautions when handling this board. You should avoid static up. If possible,
ground yourself by touching a metal table or your computer frame. Keep the board in its conductive
wrapping until it is configured and ready to be installed in your system.
For installation, you may need some or all of the following tools:
lMedium size flat blade screwdriver.
lMedium sized Phillips head screwdriver.
lA 3/16 inch nut driver or wrench.

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2.2 Placement
ISA
FAN3
PWR ON
FAN1
BIOS
FAN2
FDC
IDE0
IDE1
PCI
AGP
F. Panel
PS/2 Mouse
PS/2 Keyboard
USB
Serial 1
Serial 2
LPT
Socket 7
ATX P.
IR
DIMM 3
DIMM 2
DIMM 1
J1
J2
JP1
JP4