EPOX EP-BXBS User manual

TRADEMARK
All products and company names are trademarks or registered
trademarks of their respective holders.
These specifications are subject to change without notice.
Manual Revision 1.1
July 15, 1999
EP-BXBS (SMP)
A Dual Pentium®II Processor based
AGP mainboard (100/66MHz) with
Adaptec Ultra-2 SCSI onboard.

EP-BXBS

EP-BXBS
Technical Support Services
If you need additional information, help during installation or normal use of this
product, please contact your retailer. If your retailer can not help, you may E-Mail us
with any questions at the following address [email protected]
Record your serial number before installing your EP-BXBS mainboard. (the serial
number is located near the ISA slots at the edge of the board)
The EP-BXBS serial number:
__________________________
BIOS and Driver Upgrades
Please visit our websites for BIOS and driver upgrades.
North American Website (English)
http://www.epox.com
[email protected]
[email protected]
Taiwan Website (Chinese)
http://www.epox.com.tw
[email protected]
[email protected]
Thank you for using EPoX mainboards!
© Copyright 1998 EPoX Computer Company. All rights reserved.

EP-BXBS
User Notice
No part of this product, including the product and software may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language
in any form by any means without the express written permission of EPoX Computer
Company (hereinafter referred to as EPoX) except documentation kept by the
purchaser for backup purposes.
EPoX provides this manual “as is” without warranty of any kind, either express or
implied, including but not limited to the implied warranties or conditions of merchant-
ability or fitness for a particular purpose. In no event shall EPoX be liable for any
loss or profits, loss of business, loss of use or data, interruption of business or for
indirect, special incidental, or consequential damages of any kind, even if EPoX has
been advised of the possibility of such damages arising from any defect or error in
the manual or product. EPoX may review this manual from time to time without
notice. For updated BIOS, drivers , or product release information you may visit
EPoX’s home page at: http://www.epox.com
Products mentioned in this manual are mentioned for identification purposes only.
Product names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies.
The product name and revision number are both printed on the mainboard
itself.
Handling Procedures
Static electricity can severely damage your equipment. Handle the EP-BXBS
and any other device in your system with care and avoid unneccessary contact with
system components on the mainboard.
Always work on an antistatic surface to avoid possible damage to the motherboard
from static discharge.
We assume no responsibility for any damage to the EP-BXBS mainboard that results
from failure to follow installation instructions or failure to observe safety precautions.
CAUTION
TheEP-BXBS mainboardissubjectto
damageby static electricity. Always
observethehandlingprocedures.

EP-BXBS

EP-BXBS

EP-BXBS
Table of Contents
Section 1 Introduction
ComponentsChecklist .................................... 1-1
Overview
PentiumII....................................................... 1-2
S.E.C.CartridgeTerminology ......................... 1-3
SMP .............................................................. 1-4
AcceleratedGraphicsPort .............................. 1-5
HardwareMonitoring ..................................... 1-5
Adaptec SCSI................................................ 1-5
EP-BXBS ...................................................... 1-6
I/OShieldConnector...................................... 1-7
Power-On/Off(Remote)................................. 1-7
SystemBlockDiagram ................................... 1-8
Section 2 Features
EP-BXBS ...................................................... 2-1
Section 3 Installation
EP-BXBSDetailedLayout ............................. 3-2
Easy Installation Procedure
ConfigureJumpers .......................................... 3-3
SystemMemoryConfiguration ........................ 3-5
InstallingaPentium®IIProcessor .................... 3-8
DeviceConnectors ......................................... 3-10
External Modem Ring-in Power ON and Keyboard
Power On Function (KBPO) .......................... 3-12
Adaptec SCSI setup....................................... 3-14
Section 4 Award BIOS Setup
BIOSInstructions ........................................... 4-1
Standard CMOS Setup .................................. 4-2

EP-BXBS
BIOS Features Setup ..................................... 4-3
ChipsetFeatures Setup ................................... 4-8
PowerManagementSetup .............................. 4-13
PNP/PCIConfiguration .................................. 4-17
IntegratedPeripherals ..................................... 4-19
Change Supervisor or User Password ............. 4-24
IDEHDDAutoDetection............................... 4-25
HDDLowLevelFormat................................. 4-27
Save& ExitSetup .......................................... 4-27
ExitWithoutSaving......................................... 4-27
Section 5 Adaptec SCSI BIOS
SCSIBIOS Instructions ..................................5-1
Configuration/ViewHostAdapterSettings........5-2
BootDeviceConfiguration ...............................5-3
SCSIDeviceConfiguration ..............................5-4
AdvancedConfigurationOptions .....................5-5
SCSIDiskUtilities...........................................5-7
Section 6 Appendix
Appendix A
MemoryMap ................................................. A-1
I/O Map......................................................... A-1
Timer & DMAChannels Map......................... A-2
InterruptMap ................................................. A-2
RTC & CMOS RAM Map ............................ A-3
Appendix B
POST Codes ................................................. A-5
UnexpectedErrors ......................................... A-8
Appendix C
LoadSetupDefaults ....................................... A-9
Appendix D
CPU Clock Frequency selection in BIOS........ A-11

IntroductionEP-BXBS
Page 1-1
Section 1
INTRODUCTION
Components Checklist
üü
üü
üA. (1) EP-BXBSmainboard
üü
üü
üB. (1) EP-BXBSuser’smanual
üü
üü
üC. (1) Floppy ribbon cable
(1) IDE Hard drive ribbon cable
üü
üü
üD. (1) SCSI 50-pincable
(1) SCSI Ultra68-pin cable
(1) SCSIUltra-2(LVD)68-pin cable withterminator
üü
üü
üE. (2) Retention Module
üü
üü
üF. (1) External SCSI-2 port adapter
üü
üü
üG. (1) IDE Bus master drivers
(4) SCSI drivers
(1) USDM software (option)
USERS
MANUAL
EP-BXBS
B
A
C
COM 1COM 2
PS/2
USB
Parall el Port
Ultra-2SCSI
Wide SCSI
Narrow SCSI
E
D
FG
or

Introduction EP-BXBS
Page 1-2
Overview
Pentium II
The Pentium®II Processor is the follow-on to the Pentium®Processor. The
Pentium®II Processor, like the Pentium®Pro processor, implements a Dynamic
Execution micro-architecture -- a unique combination of multiple branch prediction,
data flow analysis, and speculative execution. This enables the Pentium®II Proces-
sor to deliver higher performance than the Pentium®processor, while maintaining
binary compatibility with all previous Intel architecture processors.
A significant feature of the Pentium®II Processor, from a system perspective, is the
built-in direct multiprocessing support. In order to achieve multiprocessing, and
maintain the memory and I/O bandwidth to support it, new system designs are
needed. For systems with dual processors, it is important to consider the additional
power burdens and signal integrity issues of supporting multiple loads on a high speed
bus. The Pentium®II Processor card supports both uni-processor and dual processor
implementations.
The Pentium®II Processor utilizes Single Edge Contact (S.E.C.) (Figure 1) cartridge
packaging technology. The S.E.C. cartridge allows the L2 cache to remain tightly
coupled to the processor, while maintaining flexibility when implementing high perfor-
mance processors into OEM systems. The second level cache is performance
optimized and tested at the cartridge level. The S.E.C. cartridge utilizes surface
mounted core components and a printed circuit board with an edge finger
connection. The S.E.C. cartridge package introduced on the Pentium®II Processor
will also be used in future Slot 1 processors.
The S.E.C. cartridge has the following features: a thermal plate, a cover and a PCB
with an edge finger connection. The thermal plate allows standardized heatsink
attachment or customized thermal solutions. The thermal plate enables a reusable
heatsink to minimize fit issues for serviceability, upgradeability and replacement. The
full enclosure also protects the surface mount components. The edge finger connec-
tion maintains socketabilty for system configuration. The edge finger connector is
denoted as ‘Slot 1 connector’ in this and other documentation.
The entire enclosed product is called the Pentium®II Processor. The packaging
technology and each of the physical elements of the product are referred to using
accurate technical descriptions. This allows clear reference to the products as just a
processor. This is the model used in past packaging technologies like PGA, TCP,
PQFP, DIP, etc.

IntroductionEP-BXBS
Page 1-3
S.E.C. Cartridge Terminology
• Pentium®II Processor
The new enclosed card packaging technology is called a “Single Edge
Contact cartridge.” This is similar to previous names for packaging
technology such as PGA or TCP.
• Processor card
The green PCB (with or without components on it)
• Processor core
The silicon on the PLGA package on the PCB
• Cover
The plastic cover on the opposite side from the thermal plate.
• Slot 1
The slot that the S.E.C. cartridge plugs into, just as the Pentium® Pro
processor uses Socket 8.
• Retention mechanism
Formerly ‘retention module’ the dual posts, etc. that holds the cartridge
in place.
• Thermal plate
The heatsink attachment plate.
• Heat sink supports
The support pieces that are mounted on the mainboard to provide added
support for heatsinks.
The L2 cache (TagRAM, PBSRAM) components keep standard industry names.
The Pentium®II Processor is the first product to utilize the S.E.C. cartridge technol-
Figure 1: Pentium®II Processor CPU
with S.E.C. Cartridge
Processor
Printed Circuit Board
Thermal Plate
Cover
ogy and Slot 1 connector. Unless
otherwise noted, any references to
“Pentium®II Processor,” “Pentium®II
Processor/Slot 1 processor” or Proces-
sor” will apply to both the Pentium®II
Processor desktop processors.

Introduction EP-BXBS
Page 1-4
Enterprise Symmetrical
Multi-Processing (SMP)
At last an Enterprise-Class solution for your Bandwidth Critical applications server at
PC prices. This mainboard features the latest Intel Pentium® II Processor horse-
power in a Symmetrical Multi-Processing (SMP) configuration previously only
available on RISC and Mainframe systems.
In SMP Operating Systems such as Unix®and Windows®NT the two main tasks of
I/O and Application thread can be most efficiently done if split evenly over two
CPU’s. The core benefit to you is not only the reduced outlay in infrastructure, but
also the PC-architecture that you need for security of investment and future
compatibility.
This mainboard is also an excellent single-user Workstation solutions for Mission-
Critical 32-bit applications such as Adobe®Photoshop for Windows®NT, where
double floating-point power can really smooth out your work-load. Also provided are
the latest PC Workstation technologies including A.G.P., USB, and PC2.1 Expansion
Slots.
Operating Systems that
support Dual Processing
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IntroductionEP-BXBS
Page 1-5
Accelerated Graphics Port (AGP or A.G.P.)
Typically, 3D graphics rendering requires a tremendous amount of memory, and demands
ever increasing throughput speed as well. As 3D products for the personal computer become
more and more popular, these demands will only increase. This will cause a rise in costs for
both end users and manufacturers. Lowering these costs as well as improving performance is
the primary motivation behind AGP. By providing a massive increase in the bandwidth
available between the video card and the processor, it will assist in relieving some of these
pressures for quite sometime.
Hardware Monitoring
Hardware monitoring allows you to monitor various aspects of your systems operations and
status. These include features such as CPU temperature, voltage and fan RPM’s.
Adaptec SCSI (Legacy/SE & Ultra-2 LVD)
The EP-BXBS mainboard features the advanced Adaptec AIC-7890 Ultra-2 Wide SCSI
controller. This controller provides support for Low Voltage Differential (LVD) SCSI devices
as defined under the Ultra-2 section of the SCSI-3 standard. LVD SCSI devices allow for data
transfer rates of up to 80 Mbytes/sec and can use cable lengths of up to 12 meters! Addition-
ally the AIC-3860 Adaptec controller is also provided for backwards compatibility with single-
ended (SE) legacy SCSI devices such as SCSI-1, Fast, Fast Wide, Ultra and Ultra Wide. Below
is a chart summarizing the possible data-transfer rates available with SCSI.
).xam(subISCSehtfosetarrefsnartelbissoP
)edoM(ecivedISCS 2JCSrotcennoC worraNnip-05 1JCSrotcennoC ediWnip-86 )DVL(3JCSrotcennoC ediWnip-86
)ES(1-ISCSces/setybM5A/NA/N
ISCStsaF,2-ISCS
)ES( ces/setybM01ces/setybM02*ces/setybM02
)ES(ISCSartlUces/setybM02ces/setybM04*ces/setybM04
)DVL(ISCS2-artlUA/NA/N*ces/setybM08
* - To avoid performance loss single-ended (SE) legacy devices should not be used on SCJ3.

Introduction EP-BXBS
Page 1-6
EP-BXBS Form-Factor
The EPoX EP-BXBS is designed with ATX form factor - the latest industry standard
of chassis. The ATX form factor is essentially a Baby-AT baseboard rotated 90
degrees within the chassis enclosure and a new mounting configuration for the power
supply. With these changes the processor is relocated away from the expansion slots,
allowing them all to hold full length add-in cards. ATX defines a double height
aperture to the rear of the chassis which can be used to host a wide range of
onboard I/O. Only the size and position of this aperture is defined, allowing PC
manufacturers to add new I/O features (e.g.; TV input, TV output, joystick, modem,
LAN, audio, etc.) to systems. This will help systems integrators differentiate their
products in the marketplace, and better meet your needs.
•By integrating more I/O down onto the board and better positioning the hard
drive and floppy connectors material cost of cables and add-in cards is reduced.
•By reducing the number of cables and components in the system, manufacturing
time and inventory holding costs are reduced and reliability will increase.
•By using an optimized power supply, it's possible to reduce cooling costs and
lower acoustical noise. An ATX power supply, which has a side-mounted fan,
allows direct cooling of the processor and add-in cards making a secondary fan
or active heatsink unnecessary in most system applications.
Fulllength
slots
Easy to
access
memory
modules
Expandable I/O
5 1/4"
Bay
3 1/2"
Bay
Figure 2: Summary of ATX chassis features
CPU located near
Power Supply
Single chassis
fan for
system
ATX
Power
Sup-
ply ATX power
connector
Floppy / IDE
connectors
close to
peripheral
bays
COM 1COM 2
PS/2
USB
Parallel Port
Ultra-2SCSI
Wide SCSI
Narrow SCSI
Adaptec SCSI
connectors

IntroductionEP-BXBS
Page 1-7
I/O Shield Connector
The EP-BXBS is equipped with an I/O back panel. Please use the appropriate I/O
shield (figure 3).
ATX
POWERSUPPLY
EP-BXBS Board
Power-On/Off (Remote)
The EP-BXBS has a single 20-pin connector for ATX power supplies. For ATX
power supplies that support the Remote On/Off feature, this should be connected to
the systems front panel for system Power On/Off button. The systems power On/
Off button should be a momentary button that is normally open.
The EP-BXBS has been designed with “Soft Off" functions. You can turn Off the
system from one of two sources: The first is the front panel Power On/Off button,
and the other is the "Soft Off" function (coming from the EP-BXBS’s onboard circuit
controller) that can be controlled by the operating system. Windows 95/98 will
control this when the user clicks that they are ready to Shutdown the system.
Figure 3:
EP-BXBS
I/O back
panel layout
Case (chassis) Power
ON/OFF button
(J3-PWON)
PS/2 Mouse
PS/2 Keyboard
Parallel Port
COM1
USB COM2
Figure 4: Simple ATX Power
ON/OFF Controller
COM 1COM 2
PS/2
USB
Paral lel Port
Ultra-2SCSI
Wide SCSI
Narrow SCSI
J3-PWON

Introduction EP-BXBS
Page 1-8
Figure 5: System Block Diagram
System Block Diagram
PA C
PCI Bridge
& memory
Controller
i443B X
PIIX4E
I/O Bridge
Pentium II
Processor Pentium II Processor
100/66 MHz
MA [0:13]
MD [0:63]
MPE [0:7]
AGP Slot
Graphic
Video
100/66 MHz
66 MHz
AGP Bus
PCI Slots
USB 0 & 1
BIOS
Flash Memory
Winbond
83C977
Serial Port 1
Serial Port 2
LPT Port
PS/2 Mouse
PS/2 Keyboard
ISA Slots
Floppy
Drives
IDE Devices
Primary &
Secondary
AIC-7890
Ultra-2
LVD
SCSI
AIC-3860
Legacy
SE
SCSI
Ultra-2 LVD Mode Only
H.D. H.D. H.D.
CD Tape
Scanner
Legacy SE Mode
TerminatorTerminator

FeaturesEP-BXBS
Page 2-1
Section 2
FEATURES
EP-BXBS Features:
•EP-BXBS is based on the Dual Pentium®II Processor operating at 233 ~ 333
MHz (66MHz) or 300-450 MHz (100MHz) on Slot 1. The board is configured
by an Easy-Setting-Single-Jumper (E.S.S.J.) to match your CPU clock speed.
•Designed with Intel’s 82443 BX AGPset.
•Supports up to 1 Gigabyte of SDRAM (minimum of 8 MB) on board, You can
use 168-pin DIMM x 4. It will automatically detect Extended Data Output
(EDO) DRAM or Synchronous DRAM memory (SDRAM) (please see
Section 3-2).
•EP-BXBS will support Error Checking and Correcting (ECC) when using
parity DRAM memory modules. This will detect multiple bit errors and correct
1-bit memory errors.
•Supports (2) 16 bit ISA slots, (4) 32 bit PCI slots, (1) AGP slot and provides
(2) independent high performance PCI IDE interfaces capable of supporting
PIO Mode 3/4 and Ultra DMA 33 devices. The EP-BXBS supports (4) PCI
Bus Master slots and a jumperless PCI INT# control scheme which reduces
configuration confusion when plugging in PCI card(s).
•Supports ATAPI (e.g. CD-ROM) devices on both Primary and Secondary IDE
interfaces.
•Designed with Adaptec AIC-7890 Ultra-2 Wide SCSI for LVD (80 Mbytes/
sec) devices and Adaptec AIC-3860 for legacy single-ended SCSI devices.
(please see Section 3-6).
•Designed with Winbond W83977 Multi I/O: (1) floppy port, (1) parallel port
(EPP, ECP), and (2) serial ports (16550 Fast UART), (1) IrDA.
Note: Japanese “Floppy 3 mode” is also supported
•Includes a PS/2 mouse connector.
•Allows use of a PS/2 or AT keyboard (with optional adapter).

Features EP-BXBS
Page 2-2
•Features Award Plug & Play BIOS. With Flash Memory you can always
upgrade to the current BIOS as they are released. (http://www.epox.com/
please visit our Technical Support section for the latest updates)
•EP-BXBS utilizes a Lithium battery which provides environmental protection
and longer battery life.
•Supports the Universal Serial Bus (USB) connector. The onboard PIIX4 chip
provides the means for connecting PC peripherals such as keyboards,
joysticks, telephones, and modems.
•Built-in ATX 20-pin power supply connector.
•Software power-down when using Windows®95/98.
•Supports ring-in feature (remote power-on through external modem,
allows system to be turned on remotely).
•Power on by Alarm - Allows your system to turn on at a preselected time.
• Power Loss Recovery - In the event of a power outtage your system will
automatically turn itself back on without user intervention.
•Supports CPU Hardware sleep and SMM (System Management Mode).
•Supports Desktop Management Interface (DMI) facilitating the management
of desktop computers, hardware and software components and peripherals,
whether they are stand-alone systems or linked into networks. (option)
• Supports Hot Key, Any Key, or password Keyboard power ON function
(KBPO).
• Supports USDM software which allows Windows®95/98, or Windows®NT 4.
0 to monitor various aspects of the system hardware.
• Supports stopping the CPU, AUX, and Chassis FANs during sleep mode.
• Supports blinking of the System Power LED (PANEL) during sleep mode.
• Built-in WOL (Wake On Lan) Connector.
• Built-in SB-LINK Header for Creative Labs Sound Blaster® AWE64D PCI
sound card.

InstallationEP-BXBS
Page 3-1
Section 3
INSTALLATION

Installation EP-BXBS
Page 3-2
Intel
443BX
PCIset
JP1
Clear
CMOS
Secondary IDE
Primary IDE
1
1
IDE1
IDE2
FDD Connector
1 FDD1
PCI Slot #1
AGP SLOT
CPU Cartridge SLOT 1
CPU Cartridge SLOT 1
PCI Slot #2
PCI Slot #3
PCI Slot #4
ISA Slot #1
ISA Slot #2
COM 1COM 2
USB 1
(Top)
Mouse
(Top)
USB 0
(Bottom)
PS/2 Keyboard
(Bottom)
USB
Parallel Port
Primary
Secondary
ATX Power Input
PW1
DIMM 2
DIMM 1
Flash Memory
for BIOS
Bank 0 Bank 1
DIMM 3 DIMM 4
200
Bank 2 Bank 3
Intel
PIIX4
PCIset
Intel
82093A
CPU 1
Fan
J4
Chassis
Fan
J6
CPU 2
Fan
J5
Adaptec
AIC-3860
J1
J7 Wake On-Lan
Wide SCSI (legacy)
Narrow SCSI (legacy) SCJ2
SCJ1
1
1
Ultra-2 SCSI (LVD)
SCJ3
1
233 266
300 333 366
MHz
300
350 400 450 500 550
MHz
Adaptec
AIC
7890
Winbond
83977
I/Oset
SB-Link
KBPO
JP13
11
JP100
SCSI RAID (option)
1
1
1
PWR/ON
RST
IR
TBLED
H/D LED
SPEAK
KEYLOCK
/PWR LDE
J3
J2
Figure 1
EP-BXBS Detailed Layout