IWILL P55XPLUS User manual

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EC Declaration of Conformity
We
Iwill Corp.
No. 10, Wu Chuan 3rd Rd.,
Hsin Chuang City, Taipei,
Taiwan, R.O.C.
Declare under sole responsibility that the
P55XPlus 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 Radiat

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IEC 801-4 Fast Transient

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About This Manual
This manual will guide the user on how this P55XPlus Ultra ATA ( Ultra DMA 33 )
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’s description is suitable for most users. Just follow step by step in 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 Award BIOS Setup chapter ---
Detail description of this Ultra DMA 33 motherboard, no need to change the
manufacture default unless you have conflict in your system.
The chapter Appendix ---
Useful information will be added in this chapter for your reference.
Warning
Most of the features in this motherboard have passed strict verification and are subject to
change at any time without notice. If there’s any malfunction due to these changes
made by their respective manufacturers, Iwill assumes no responsibility or liability for
it.
Version
This manual is written to match Iwill’s P55XPlus motherboard Version.1.01.

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Trademarks
IWILL, the IWILL logo, RAIDBUS are trademarks of IWILL Corporation which is
registered in the United State of America and some other countries with some
jurisdictions.
Intel, the Intel logo, Pentium are trademarks of Intel 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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Contents
CHAPTER 0..................................................................................................................8
QUICK INSTALL ATION .........................................................................................8
CHAPTER 1................................................................................................................16
OVERVIEW................................................................................................................16
1.1 FEATURES............................................................................................................16
1.2 SPECIFICATIONS..................................................................................................20
CHAPTER 2................................................................................................................21
HARDWARE INSTALL ATION............................................................................21
2.1 PREPARATION AND INSPECTION........................................................................21
2.2 PLACEMENT ........................................................................................................22
2.3 CPU GROUP.........................................................................................................24
2.4 L2 CACHE MEMORY..........................................................................................29
2.5 D-RAM CONFIGURATION.................................................................................29
2.6 IDE INTERFACE ..................................................................................................30
2.7 USB (UNIVERSAL SERIAL BUS).......................................................................31
2.8 ENHANCED MULTI-IO .......................................................................................32
2.9 OTHERS................................................................................................................34
CHAPTER 3................................................................................................................38
AWARD BIOS SETUP .............................................................................................38
3.1 MAIN MENU........................................................................................................41
3.2 STANDARD CMOS SETUP.................................................................................43
3.3 BIOS FEATURES SETUP.....................................................................................46
3.4 CHIPSET FEATURES SETUP................................................................................51
3.5 POWER MANAGEMENT SETUP..........................................................................57
3.6 PNP/ PCI CONFIGURATION SETUP...................................................................60
3.8 LOAD SETUP DEFAULTS.............................................................................64
3.9 SUPERVISOR/USER PASSWORD SETTING........................................................64
3.10 IDE HDD AUTO DETECT ION ...................................................................65
3.11 HDD LOW LEVEL FORMAT......................................................................65
3.12 SAVE & EXIT SETUP ...................................................................................65
3.13 EXIT WITHOUT SAVING ...........................................................................65
APPENDIX A—CPU CONFLUENCE................................................................66

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CHAPTER 0
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 1.
ISA
PCI
FDD
S. IDE
P. IDE
SIMM1
LPT
AT
COM1
KB
PS2
CPU
BIOS
F. Panel
Fan
USB
COM2
SIMM2
SIMM3
SIMM4
DIMM1
DIMM2
U11
Figure 1:Connectors for P55XPlus

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120
133
150
166
200
C200+
233
266
300
T75
T83
3.5
3.2
3.1
2.9
2.8
2.1
JP5
JP6
JP3
JP1
J9
JP2
1
U11
Figure 2: Jumpers Location

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Connector Function Description
AT 12 pin Standard AT power input connector
BIOS BIOS (Basic Input Output System)
COM1 2 x 5 pin box-header for Serial 1 port connector
COM2 2 x 5 pin box-header for Serial 2 port connector
CPU 321 pin Socket 7 CPU socket
DIMM1 64 bit Dual In-line Memory Module.
DIMM2 64 bit Dual In-line Memory Module.
Fan 3 pin CPU Cooling fan power connector
FDD 34 pin key-protected Floppy disk drive connector
F Panel C Front panel signal control connector
RST—Reset Switch
IDE LED—IDE LED
PWR. LED—Power LED
Speaker—Speaker connector
Keylock— Keylock switch connector
ISA: 5 x ISA (Industrial Standard Architecture) 98 pin expansion slot
LPT: 2 x 13 pin key-protected for Parallel port connector
KB: 5 pin keyboard DIN connector
P. IDE: 40 pin key-protected for Primary IDE connector
PCI: 3 x PCI version 2.1 compliance 120 pin PCI (Peripheral
Component Interface)expansion slot
PS2: 5 pin PS2 connector
S. IDE: 40 pin box-header for secondary IDE connector
SIMM1: 32 bit Single In-line Memory Module Socket.
SIMM2: 32 bit Single In-line Memory Module Socket.
SIMM3: 32 bit Single In-line Memory Module Socket.
SIMM4: 32 bit Single In-line Memory Module Socket.
USB: 20 pin Universal Serial Bus connector
U11: 28 pin socket for second Tag Ram installation.

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Jumper Setting
J9 Part of ATX Power supply connector
JP1 CMOS Clear Jumper
JP2 CPU Voltage Monitor Jumper
JP5 CPU Frequency select
JP6 CPU Voltage Select
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, pay
more attention to the the right direction.
CPU
Step 2. Install CPU Cooler
Hook one side of the CPU Cooler’s metal latch to the CPU cooling fan connector, then
press the metal latch again to fit into another side.
Warning: Care must be taken when the CPU Cooler is installed, an improper force might
scrach this motherboard.
JP4
+12V
GND
NC

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Step 3. Adjust the CPU Voltage
Jumper JP6 is designed for users to set the proper voltage for the processor installed. A
wrong voltage setting will damage the CPU permanently.
There are total 6 different voltage selections in this P55XPlus 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 3.5V.
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 an Intel Pentium, AMD or Cyrix single voltage processor is installed please set to
3.5V.
3.5
3.2
3.1
2.9
2.8
2.1
JP6
3.5
3.2
3.1
2.9
2.8
2.1
JP6
Step 4. Adjust the CPU Frequency
Jumper JP5 is designed to set the CPU speed frequency. Easily place the colored jumper
cap into the jumper that have the actual speed mark on the side of this JP5. Once the
jumper cap is inserted, it will auto assign the external clock and internal/external clock
multiplier. There are more detail description on Chapter 3 CPU Clock Select and
Appendix A CPU for more information.

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120
133
150
166
200
C200
233
266
300
T75
RSV
JP5
120
133
150
166
200
C200+
233
266
300
T75
T83
JP5
Step 5. Install the Memory Module
At least one piece of 72 pin SIMM(Single In-line Memory Module) or one piece of 168
pin DIMM(Dual In-line Memory Module ) must be inserted in this P55XPlus Ultra
DMA 33 motherboard.
The memory in this motherboard is devided into three banks.
Please see the graphic below for your reference.
IR
SIMM1
SIMM2
SIMM3
SIMM4
DIMM1
DIMM2
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 34, 40, pin flat cables. Use these cables to connect the motherboard
and internal devices. All flat cables’ connector housing have the key protect, which will
guide you the correct direction when you insert.

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The colored side of the flat cable is Pin 1.
IR
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. Enclosed in this motherboard’s
package, there are two 10 pin connectors: one converts to 9 pin ,and the other converts
to 25 pin D-Sub male connector cable for Serial port. One 26 pin connector that
converts to 25 pin D-Sub female connector cable is for Parallel port. And there is
another one 5 pin housing but only 4 wires converted into a 6 pin Mini-DIN, for the
PS/2 mouse cable is available at option.
Step 8. Connect the Reset switch
Most computer chassis provides a reset switch to front pannel control, this will reboot
the system without turning off the power switch while the reset switch is pushed. Use
the chassis that provides a 2 pin housing and connect to this reset switch.
IR
RST
IDE LED
SPEED LED
SPEAKER
KEYLOCK
1
1
1
PWR LED

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Step 9. Connect the Keylock (keyboard lock) Switch
Most computer chassis will provide a keylock switch. Normally, connect the marked
keylock connector to this motherboard’s keylock connector. This will cause the
keyboard out of function once you switch the keylock to “Lock.” This will prevent any
un-authorized keyin. The onboard keylock connector is a 5 pin pin-header. (See
reference information in the Chapter 3—Hardware Installation for detail pin assignment)
If the chassis does not provide the switch, you can skip this step.
Step 10. Connect the Speaker
Connect the speaker to the motherboard’s speaker connector. (Normally the red cable is
+5V power) (See reference information in the Chapter 3—Hardware Installation for
detail pin assignment)
Step 11. Connect the Power LED
Most computer chassis provides a power LED to identify if the system is on or off.
Connect the power LED to the 2 pin pin-header motherboard’s LED connector.
(normally the red cable is +5V power) Or connect to the left side of onboard keylock.
Step 12. Connect the Devices LED
Some computer chassis provides device LED (Like HDD LED) to identify if the device
is under working or not. Connect the device LED to the motherboard’s IDE device LED
connector. (normally the red cable is +5V power)
Step 13. Connect the Power Input
This motherboard provides two standard AT power input. Carefully plug the P8 and P9
connectors from your AT power supply to the motherboard.
Step 14. Connect the Keyboard
Follow the keyboard cable’s key direction and connect to this motherboard.
Step 15. Plug the Display Card
Finally, insert the display card you have in horizontal direction into the PCI/ISA
expansion slot.
Step 16. Power on the system & Load the BIOS Default
Once the system is power 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 responds “Load SETUP default(Y/N)?”, press “Y” and “Enter.” Finally,
choose “SAVE to CMOS and EXIT (Y/N)?” by pressing “Y” and “Enter.”

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CHAPTER 1
Overview
Thank you for purchasing this P55XPlus Ultra DMA33 Motherboard. This operation
manual will guide you to proper configuration and installation. It has an overview of the
engineering design and features of this board. Also, this manual provides useful
information for your later upgrading or any changes to the configuration. Please keep
this for your future reference.
1.1 Features
This P55XPlus 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 4+ PCIset with I/O subsystem that supports for processors
up to 300 MHz with one single jumper to set the speed frequency and 512Kbyte for
second Level Cache onboard that is well prepared to run heavy application.
To run faster bus speed is a great plus in this P55XPlus motherboard. It not only can run
the 66MHz bus that Intel claims on all her highest system bus but also built in 75MHz
and 83MHz 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 5 ISA slots
for great expansion ability. A optional tag ram can be added to support memory
cacheable size up to 512MB.
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 4 of the 72 pin
SIMMs that support both fast page and EDO DRAM also with two of the 168 pin
DIMM memory sockets that support the new 5V, 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.

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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 with AT form factor 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 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.
◼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. One easy
jumper is designed for users to set the CPU frequency just according to your CPU speed
from 120 to 300MHz.
◼CHIPSET:
Ali Aladdin 4+ PCIset with I/O subsystem chipset is used on this motherboard.
◼BIOS:
Award 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.
◼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/Sec. It also supports 32 bit power-on function, that is, one SIMM will
be able to power on the PC.
◼Memories:
4 X 72-pin SIMM (Single In Line Memory Module)

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2 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 under SIMM socket or the new Synchronous DRAM with DIMM
socket (3.3V un-buffered type).
Support 32 bit power-on function. For example, one SIMM is able to power on the
computer.
◼Expansion slots:
This motherboard provides :
5 X 16-bits ISA slots, 3 X 32-bits PCI slots
◼Switching DC/DC Voltage Regulator for CPU:
Effeciently cool down CPU temperature, increase system stability and supoport future
processors.
More and more Pentium or compatible processors have been releasing releasesing and
most of them are not using the same voltage for the processor. For example, the current
Intel Pentium processor is using 3.5V single power source and new Intel Pentium with
MMX processor is using the 2.83V dual power source. This regulator will automatically
detect the CPU type and power. The users need not to care what processor is used.
Please refer to Appendix A for more information
◼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.
Support ATAPI (AT Attachment Packet Interface)
◼USB interface (Universal Serial Bus):
To support this function, you need to purchase an extra USB Riser card. The optional
USB Riser card for this motherboard provides two USB connectors.
Plug and Play devices outside the computer box
Up to 12Mbit
Easy of use
◼Power Connectors:
Support AT power supply connector
Support remote power on connector. (Option, ATX power supply connector needed)

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◼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
◼Serial Port:
Two onboard 10 pin box-header connectors provide 2 Serial ports. Use the two cables
that go with this motherboard to convert to the standard 9 and 25 pins D-Sub connectors.
Two high speed 16550 UART serial port
IRQ selectable from BIOS.
Address changeable form system BIOS
NS16C550 compatible, Programmable Baud Rate Generator
◼Parallel Port
One onboard 26 pin box-header connector provides the Parallel port. Connect this
parallel port by one 26 pin and convert to 25 pin D-Sub cable that packs with this
motherboard.
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
1.2 Specifications
⚫Physical Dimensions:Length: 260mm / Width: 220mm
⚫Environmental Requirements:
Temperature 0-55 degrees C (operating or storage)
5% to 95% non-condensing relative humidity