ENPC EP-KL21 User manual

EP-KL21
Motherboard of
Pentium II with MMX
User’s Manual
Order Number 41010005
December 1997

EC-Conformity Decl r tion
(EC conformity marking)
FOR THE FOLLOWING EQUIPMENT
Product Name MOTHERBOARD
Model EP-KL21
Manufacturer Address 6FL., No. 19, Wu Chuan 6 Rd.
Wu-Ku Industrial Park, Taipei, Taiwan,
R.O.C.
IS HEREWITH CONFIRMED TO COMPLY WITH THE EQUIPMENTS
SET UP IN THE COUNCIL DIRECTIVE ON THE APPROXIMATION
OF THE LAW OF MEMER STATES RELATING TO
ELECTROMAGNETIC COMPATIBILITY (89/336/EEC) AND LOW
VOLTAGE DIRECTIVE 78/28/EEC. FOR THE EVALUATION
REGARDING THE ELECTROMAGNETIC COMPATIBILITY AND
SAFETY, THE FOLLOWING STANDARDS WERE APPLIED
EN50081-1 (1992) GENERIC EMISSION STANDARDS
EN550022 (1994) EMISSION
EN60555-2 (1987) HARMONICS
EN60555-3 (1987) VOLTAGE FLUCTUATIONS
EN50082-1 (1992) GENERIC IMMUNITY STANDARD
IEC 801-2 (1984) ELECTROSTATIC DISCHARGE IMMUNITY
IEC 801-3 (1984) RADIATED IMMUNITY
IEC 801-4 (1988) ELECTRICAL FAST TRANSIENT
The manufacturer also declares the conformity of the above-mentioned
product, with the actual required safety standards in accordance with LVD
73/23 EEC.
Manufacturer/Importer
Date
Signature ___________________ Signature .
Name Jeff Chang Name Kunnau Chen

(Project Leader) (President)

EP-KL21
Motherboard
for
Compatible PC
User Manual Rev 1.1
Related Motherboard EP-KL21 P.C.B. Rev 1.X
Date Dec. 1997
EP-KL21 User’s M nu l
i

TABLE OF CONTENTS
Ch pter 1.............................................................................................1
1-1 About this Manual……......................................................................1
1-2 Item Checklist…………....................................................................2
1-3 Specifications………….....................................................................3
Ch pter 2.............................................................................................6
2-1 Motherboard Description...................................................................6
2-2 Motherboard Layout……..................................................................7
2-3 System Memories……….............................................................…..8
2-4 Central Processing Unit (CPU)........................................................10
2-5 Expansion Cards & Slots.................................................................12
2-6 External Connectors…….................................................................13
2-7 Hardware Jumper/Switch Setup.......................................................25
EP-KL21 User’s M nu l
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FCC & DOC COMPLIANCE
Feder l Communic tions Commission St tement
This device complies with FCC Rules Part 15. Operation is subject to
the following two conditions
This device may not cause harmful interference, and
This device must accept any interference received, including
interference that may cause undesired operation.
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 in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with manufacturer’s instructions,
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 try to correct the
interference by one or more of the following measures
Re-orient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to 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.
W rning: The use of shielded cables for connection of the monitor to
the graphics card is required to assure compliance with FCC
regulations. Changes or modifications to this unit not expressly
approved by the party responsible for compliance could void the
user’s authority to operate this equipment.
EP-KL21 User’s M nu l
iii

Feder l Communic tions Commission (Continued...)
C n di n Dep rtment of Communic tions St tement
This digital apparatus does not exceed the Class B limits for radio
noise emissions from digital apparatus set out the Radio Interference
Regulations for the Canadian Department of Communications.
EP-KL21 User’s M nu l
iv

1
Ch pter 1 INTRODUCTION
1-1 About this M nu l
This manual is arranged to help you set up and run this Motherboard
of Pentium II with MMX as soon as possible.
The information is presented in the following two chapters
Ch pter 1 Introduction:
Presents what you should receive with your
motherboard, the features and specifications
of the product. This chapter enclosed with a
diagram showing the layout of the
motherboard.
Ch pter 2 Inst ll tion:
Motherboard Installation includes detailed
information on how to install and configure
the motherboard.
EP-KL21 User’s Manual

Ch pter 1 INTRODUCTION
1-2 Item Checklist
This product comes with the following components
 Motherboard x 1
 40-pin IDE Connector Flat Cable x 1
 34-pin Floppy Disk Drive Flat Cable x 1
 User’s Manual x 1
Bus Master IDE Drivers Diskette x 1 (Option)
Rear Panel Shielding (Option)
IrDA Module x 1 (Option)
LDCM Diskette x 1 (Option)
Note
Option Components will be included upon customer ordering
instructions per Proforma Invoice & additional external
procurement cost will be included.
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3
Ch pter 1 INTRODUCTION
1-3 Specific tions
Processor: Slot 1 support Intel Pentium II with MMX
Series CPU’s, CPU Clock Select support for
66 MHz CPU Bus speed configuration.
Chipset: Intel 82443LX System Controller
Intel 82371AB PCI/ISA IDE Accelerator
BIOS Award BIOS With Flash ROM, support PnP,
PCI 2.1, CD-ROM, ATAPI, LS-120, and any
IDE Device Bootable, Virus Protection, DMI
Ready
System Memory: 3 x 168-pin DIMM Slots Support Mixed
Memory Technologies Extended Data Output
(EDO), Fast Page (FP) DRAM), Synchronous
DRAM (SDRAM)
Multi-I/O Onbo rd: 1 x FDD Port support up to 2.88MB
1 x Parallel Port (LPT) support ECP/EPP
2 x High Speed Serial (16C550 UART) Ports
2 x Universal Serial Bus (USB) Ports
1 x PS/2 Keyboard Port
1 x PS/2 Mouse Port
2 x IrDA Infrared Interfaces
EP-KL21 User’s Manual

Ch pter 1 INTRODUCTION
PCI Bus M ster IDE: PCI Enhanced IDE Interface with 4 IDE
Devices
Support HDD Auto-Detect
Support up to PIO Mode 4, DMA Mode 2
Support Ultra DMA/33 mode
Fully compatible with PCI Local Bus
Specifications V2.1
ATX St ck Connector: 2 x USB Ports, 1 x PS/2 Keyboard Port, 1 x
PS/2 Mouse Port, 1 x Parallel Port, 2 x Com
Port
Exp nsion Slots: 3 x 16-bit ISA Slots with 100% ISA
Compatible Functions
4 x 32-bit PCI Slots supporting PCI BUS
Master Slots Conform with PCI
Specifications Version 2.1
1 x AGP Slot supported.
Options: 2 x Infrared (IrDA) Wireless Interface Kit
(Front & Rear)
Universal Serial Bus (USB) Connector Kit
LM78 Hardware Monitor Circuit Design and
LM75 CPU Temperature reading, LDCM
for system Voltage, System Temperature,
Fan Speed detect.
EP-KL21 User’s M nu l
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5
Ch pter 1 INTRODUCTION
Extended Fe tures: Advanced Configuration and Power Interface
(ACPI) ready
CPU Temperature detect
Support System Power Monitor
Support Win95 Soft Power Off (For ATX
Power only)
Support SM-Bus
Dimension: 305 mm x 195 mm
Form F ctor: ATX Form Factor
EP-KL21 User’s Manual

Ch pter 2 INSTALLATION
2-1 Motherbo rd Description
The motherboard is designed with the Intel 82440LX PCI chipset
which is developed by Intel Corporation to fully support the
Pentium II Processor PCI/ISA system. The Intel 82440LX PCI chipset
provides increased integration and improved performance designs.
The chipset provides an integrated IDE controller with two high
performance IDE interfaces for up to four IDE devices (hard devices,
CD-ROM device, etc). The Super I/O controller provides the standard
PC I/O function floppy interface, two 16Byte FIFO serial ports and
EPP/ECP capable parallel port.
Care must be taken when inserting memory modules, inserting CPU
or even plugging PCI card into associated slots to avoid damaging any
circuits or sockets on board. A cooling fan is strongly recommended.
The motherboard supports minimum of 8MB of system memory and a
maximum of 512MB SDRAM, 1GB EDO RAM.
The motherboard supports standard Fast Page (FP), EDO (Extended
Data Output), or SDRAM (Synchronous DRAM). The motherboard
provides three 168-pin DIMM. The socket supports 1Mx32 (32MB)
single-sided or double-sided memory modules. The memory timing
requires 70ns Fast Page devices or 60ns EDO RAM. Memory parity
generation and checking is not supported. (DRAM Modules may be
parity (x36) or non-parity (x32).
The board also supports onboard two PCI IDE connectors, and detects
the IDE hard disk type by the BIOS utility which is automatic. The
system also supports Award Plug & Play BIOS for the ISA and PCI
cards.
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7
Ch pter 2 INSTALLATION
2-2 Motherbo rd L yout
EP-KL21 User’s Manual

Ch pter 2 INSTALLATION
2-3 System Memories
This motherboard supports three 168-pin DIMM. The SDRAM can be
either 60ns.
Install memory in any or all of the banks in any combination as the
following page
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9
Ch pter 2 INSTALLATION
Item B nk Memory Module
1 DIMM 1 8~256MB
2 DIMM 1, 2 8~256MB
3 DIMM 1, 2, 3 8~256MB
EP-KL21 User’s Manual
DIMM 2
DIMM3
DIMM 1

Ch pter 2 INSTALLATION
2-4 Centr l Processing Unit (CPU)
The motherboard provides a SLOT 1 for Pentium II CPU. The CPU
should have a fan attached to it to prevent overheating. If your CPU
did not come with a fan, then purchase a fan before you turn on your
system.
NOTE Without a fan, the CPU can overheat and cause damage
to both the CPU and the motherboard.
EP-KL21 User’s M nu l
SLOT 1
10

11
Ch pter 2 INSTALLATION
To install a CPU, locate the SLOT 1. Insert the CPU with the correct
orientation. you should have a CPU fan that will cover the face of the
CPU.
EP-KL21 User’s Manual
SW1 (Use dip sw. or pin header)
CPU Bus Clock Select

Ch pter 2 INSTALLATION
2-5 Exp nsion C rds & Slots
Assigning DMA Channels for ISA Cards
Some ISA cards, both Legacy and PnP may also need to use a DMA
(Direct Memory Access) channel. DMA assignments for this
motherboard are handled the same way as the IRQ assignment process
. You can select a DMA channel in the PCI and PnP configuration
section of the BIOS Setup utility.
NOTE Choose “Legacy ISA” for those IRQ’s and DMA’s you
wish to reserve for Legacy (Non-PnP) ISA expansion
cards in “IRQ xx Used by ISA” and “DMA x Used By
ISA” of the PnP and PCI Setup in the BIOS Software
section, otherwise conflicts may occur.
EP-KL21 User’s M nu l
4 x PCI SLOTS
3 x ISA SLOTS
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13
Ch pter 2 INSTALLATION
2-6 Extern l Connectors
1. PS/2 Keybo rd Connector nd USB Port (J12, 6-pin Female
and J8, USB Connector)
This connection is for a standard keyboard using PS/2 plug (mini
DIN). This connector will not allow standard AT size (large DIN)
keyboard plugs. You may use a DIN to mini DIN adapter on
standard AT keyboard.
2. PS/2 Mouse Connector (J7, 6-pin Female)
The system will direct IRQ12 to the PS/2 mouse if one is
detected. If not detected, expansion cards can use IRQ12.
3. P r llel Port (J9, 25-pin Female)
EP-KL21 User’s Manual
J12: PS/2 Keyboard
Connector
J7: PS/2 Mouse Connector
J8 : USB Port
(Support Standard
USB Spec.)