EPOX EP-68LXR 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 2.3
June 25, 1998
EP-68LXREP-68LXR
EP-68LXREP-68LXR
EP-68LXR
APentiumAPentium
APentiumAPentium
APentium®®
®®
®IIProcessorbasedAGPmainboardIIProcessorbasedAGPmainboard
IIProcessorbasedAGPmainboardIIProcessorbasedAGPmainboard
IIProcessorbasedAGPmainboard
EP-68LXR
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
Record your serial number before installing your EP-68LXR mainboard. (the serial
number is located near the ISA slots at the edge of the board)
EPoX EP-68LXR serial number:
__________________________
BIOS Upgrades
Please use either our Web Site or BBS for current BIOS Upgrades.
Internet Access
http://www.epox.com
Modem Access
886-2-2247-2742 (Taiwan)
31-182-618451 (The Netherlands)
You can access this number via a Hayes-compatible modem with a 2,400 to
28,800 baud rate. The following setup format is required:
8 Data Bits, No Parity, 1 Stop Bit.
If your modem is unable to connect at higher baud rates, try connecting at
2,400 baud before contacting Technical Support.
Thank you for using EPoX mainboards!
© Copyright 1997 EPoX Computer Company. All rights reserved.
EP-68LXR
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 (here in after 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-68LXR
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-68LXR mainboard that
results from failure to follow installation instructions or failure to observe safety
precautions. CAUTION
TheEP-68LXRmainboardissubjectto
damageby staticelectricity. Always
observethehandlingprocedures.
EP-68LXR
Table of Contents
Section 1 Introduction
ComponentsChecklist .................................... 1-1
Overview
PentiumII....................................................... 1-2
S.E.C.CartridgeTerminology ......................... 1-3
AcceleratedGraphicsPort .............................. 1-4
HardwareMonitoring ..................................... 1-4
DesktopManagementInterface ...................... 1-4
Power-On/Off(Remote)................................. 1-5
SystemBlockDiagram ................................... 1-6
Section 2 Features
EP-68LXRFeatures....................................... 2-1
Section 3 Installation
EP-68LXRDetailedLayout............................ 3-1
Easy Installation Procedure
ConfigureDIPSwitch ..................................... 3-2
SystemMemoryConfiguration ........................ 3-3
InstallingaPentium®IIProcessor .................... 3-6
DeviceConnectors ......................................... 3-8
Section 4 Award BIOS Setup
BIOSInstructions ........................................... 4-1
Standard CMOS Setup .................................. 4-2
BIOS Features Setup ..................................... 4-3
ChipsetFeatures Setup ................................... 4-8
PowerManagementSetup .............................. 4-13
PNP/PCIConfiguration .................................. 4-17
LoadSetupDefaults ....................................... 4-19
EP-68LXR
IntegratedPeripherals ..................................... 4-19
Change Supervisor or User Password ............. 4-24
IDEHDDAutoDetection............................... 4-24
HDDLowLevelFormat................................. 4-27
Save& Exit Setup .......................................... 4-27
ExitWithoutSaving......................................... 4-27
Section 5 DMI
DMI Access................................................... 5-1
Section 7 Appendix
Appendix A
MemoryMap ................................................. A-1
I/O Map......................................................... A-1
Timer&DMAChannelsMap......................... A-2
InterruptMap ................................................. A-2
RTC & CMOS RAM Map ............................ A-3
Appendix B
POST Codes ................................................. A-4
UnexpectedErrors ......................................... A-7
Appendix C
LoadSetupDefaults ....................................... A-8
IntroductionEP-68LXR
Page 1-1
Section 1
INTRODUCTION
Components Checklist
üü
üü
üA. (1) EP-68LXR mainboard
üü
üü
üB. (1) EP-68LXR user’s manual
üü
üü
üC. (1) Floppy ribbon cable
üü
üü
üD. (1) Hard drive ribbon cable
E. (1) Heatsink Support Unit (optional)
F. (1) PS/2 Mouse Connector
üü
üü
üG. (1) Bus master drivers
üü
üü
üH. (1) COM Port/LPT Port Connector
USERS
MANUAL
EP-68LXR
B
A
C
D
F
Top Half
Bottom Half H
E
P
o
X
C
D
-
R
o
m
or
G
I
EE
F
G
H
Introduction EP-68LXR
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
IntroductionEP-68LXR
Page 1-3
processor. This is the model used in past packaging technologies like PGA, TCP,
PQFP, DIP, etc.
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.
Figure 1: Pentium®II Processor CPU
with S.E.C. Cartridge
Processor
Printed Circuit Board
Thermal Plate
Cover
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
technology 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-68LXR
Page 1-4
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 opera-
tions and status. These include features such as CPU temperature, voltage and fan
RPM’s.
Desktop Management Interface
(DMI)
DMI, or Desktop Management Interface, is a BIOS level method for monitoring
specific BIOS related hardware features. It allows the BIOS to collect and store
information specific to the system, so that vendors and system integrators will have
greater access to information regarding system configuration and design. This allows
for better troubleshooting, migration planning, and upgradeability decision making.
IntroductionEP-68LXR
Page 1-5
ATX
POWERSUPPLY
EP-68LXR Board
Power-On/Off (Remote)
The EP-68LXR 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-68LXR 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-68LXR’s onboard
circuit controller) that can be controlled by the operating system. Windows 95 will
control this when the user clicks that they are ready to Shutdown the system.
Figure 4: Simple ATX Power ON/OFF Controller
J 3
Case (chassis) Power
ON/OFF button (J 3)
Introduction EP-68LXR
Page 1-6
Figure 5: System Block Diagram
System Block Diagram
PAC
PCI Bridge
and memory
controller
443LX/443EX
PIIX4/PIIX4E
I/O Bridge
FeaturesEP-68LXR
Page 2-1
Section 2
FEATURES
EP-68LXR Features:
•EP-68LXR is based on the Pentium®II Processor operating at 233 ~ 333 MHz
on Slot 1. The board is configured by an DIP Switch to match your CPU
clock speed.
•Designed with Intel’s 82443 LX (or 82443 EX) AGPset.
•Supports up to 256MB of DRAM (minimum of 8 MB) on board (please see
Section 3-2).
•EP-68LXR 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, (3) 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-68LXR supports (3) 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 Winbond W83977TF Multi I/O: (1) floppy port, (1) parallel port
(EPP, ECP), and (2) serial ports (16550 Fast UART).
Note: Japanese “Floppy 3 mode” is also supported
•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-68LXR utilizes a Lithium battery which provides environmental protection
and longer battery life.
Features EP-68LXR
Page 2-2
•Supports the Universal Serial Bus (USB) Header. The onboard PIIX4/PIIX4E
chip provides the means for connecting PC peripherals such as; keyboards,
joysticks, telephones, and modems.
•Built-in ATX 20-pin and AT 12-Pin power supply connector.
•Software power-down when using Windows®95.
•Supports ring-in feature (remote power-on through external modem,
allows system to be turned on remotely.
• Resume 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)
• Built-in WOL (Wake-up On Lan) Connector.
• Built-inSB-LinkConnector.
InstallationEP-68LXR
Page 3-1
Figure 1
EP-68LXR Detailed Layout
Section 3
INSTALLATION
AGP SLOT
PCI Slot #3
PCI Slot #2
PCI Slot #1
ISA Slot #1
ISA Slot #2
AT Power Input
Intel
443LX/443EX
PCIset
CPU Cartridge SLOT 1
J6
Chassis FAN
J5
Power Fanr
J4
CPU FAN
EP-68LXR
Secondary IDE
Battery
Flash Memory
for BIOS
RESET
SPEAKE RKEYLOCK J2
J3
POWER_ON
TB/ LED
HD/L ED
IR CONN.
1
IDE2IDE1
DIMM 2
DIMM 1 Bank 0
Bank 1
USB1
15
J8
JP4
ON
PS/2
1
J7
WOL
SB-Link
Installation EP-68LXR
Page 3-2
Easy Installation Procedure
Easy Installation Procedure
The following must be completed before powering on your new system:
3-1. Configure DIP Switch and Jumper to match your hardware
3-2. Install memory chips
3-3. Install Pentium II Processor
3-4. Device Connectors
Section 3-1
Configure DIP Switch
EPoX designs all motherboards with a DIP Switch to make your install fast and easy.
The following will describe all of the DIP Switch that you are required to set before
moving on to step 3-2.
Note: The DIP Switch as depicted as shown (Figure 1) in their correct
physical orientation.
SW1
1234
CPU
ON ON 233
ON ON ON 266
ON ON 300
ON ON 333
1234
ON
S
W1
JP4 JP4 Bus Clock
1-2 68MHz
2-3 75MHz
OPEN 66MHz
InstallationEP-68LXR
Page 3-3
Section 3-2
System Memory Configuration
Memory Layout
The EP-68LXR supports (2) 168-pin DIMMs (Dual In-line Memory Module). The
DIMMs can be either EDO (Enhanced Data Out) or SDRAM (Synchronized
DRAM).
• DIMM SDRAM may be 83MHz (12ns), 100MHz (10ns) or
120MHz (8ns) bus speed.
• If you use both 50ns and 60ns memory you must configure
your BIOS to read 60ns.
• When using Synchronous DRAM we recommend using the
4 clock variety over the 2 clock.
• Fast Page Mode DRAM (FPM) is not supported by the LX
(or EX) AGPset. Only EDO and SDRAM are supported.
Figure 2 and Table 1 show several possible memory configurations using both SIMM
and DIMM.
DIMM 1
DIMM 2
Bank 0
Bank 1
Installation EP-68LXR
Page 3-4
DIMM Module Installation
Figure 5 displays the notch marks and what they should look like on your DIMM
memory module.
DIMMs have 168-pins and two notches that will match with the onboard DIMM
socket. DIMM modules are installed by placing the chip firmly into the socket at a
90 degree angle and pressing straight down (figure 6) until it fits tightly into the
DIMM socket (figure 7).
Figure 5
* SDRAM only supports 8, 16, 32, 64, 128MB DIMM modules.
Table 1
yromeMlatoT 1MMID )0knaB( 2MMID )1knaB(
BM652= mumixaM
*MARDS/ODE ,BM23,BM61,BM8 1XBM821,BM46
*MARDS/ODE ,BM23,BM61,BM8 BM652,BM821,BM46 1X
BM821= mumixaM
*MARDS/ODE ,BM23,BM61,BM8 1XBM821,BM46 enoN
CENTER KEY ZONE
(3.3 V DRAM)
LEFT KEY ZONE
(UNBUFFERED)
InstallationEP-68LXR
Page 3-5
Figure 5
DIMM Module clip before installation
Figure 6
DIMM Module clip after installation
To remove the DIMM module simply press down both of the white clips on either
side and the module will be released from the socket.
Installation EP-68LXR
Page 3-6
Section 3-3
Installing a Pentium II Processor
The EP-68LXR uses the Single Edge Contact (SEC) slot for a Pentium II processor
packaged in an SEC cartridge. The SEC slot is not compatible with other non-
Pentium II processors.
Please have ready the following list of components so that we may install the proces-
sor onto the motherboard.
1. Heat sink support (top/bottom piece)
2. Pentium II processor heat sink
3. Intel Pentium II Processor
OK, now that you have all of your components ready, we can start.
First, please refer to figure 8 below, and follow the direction to lift up the fixed
foldable pentium®II Retention Mechanism. This pre-installed device is
designed for you to install Pentium®II CPU more easier and to avoid any
damage on the board due to overtightening the four screws.
One thing must be kept in your mind that please make sure to lift upright the
foldable parts of the Retention module to fit and install CPU properly.
Figure 8
Now we are going to install the heatsink support base piece (figure 9) onto the
motherboard. There is both a large and small hole (figure 10) so that the base will
only fit in one direction. This piece needs to be pushed into the holes firmly until it is
seated.
Now we are ready to install the SEC Cartridge (Pentium II Processor) into the
Retention Module. The SEC Cartridge is mounted by sliding the SEC Cartridge into
the Retention Module and letting it slide all the way down. Once it reaches the
InstallationEP-68LXR
Page 3-7
bottom make sure you press firmly on SEC cartridge to firmly secure into the Slot 1
Socket.
Now we need to secure the heatsink with the top half of the support (figure 11).
Take the top piece of the support and slide it into the bottom fin (figure 11) on the
heatsink and then push forward until it clips into the bottom base (figure 9) that is
already there (figure 11).
CPU Cartridge SLOT 1
Large Hole for Heat Sink Base Small Hole for Heat Sink Base
Figure 10
Motherboard
Layout
Figure 9 shows the layout of Slot 1 and the holes for mounting the Heatsink base
piece (figure 8).
Figure 9
Figure 11
Top half of the support
Bottom fin
of heatsink Bottom fin
of heatsink
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