Acorp 6A815EP User manual

6A815EP
(INTEL i815EP Chipset, S-370)
ATX Form Factor
Main Board
User’s Manual
(Ver.:2.1)

Copyright
Copyright©2001 by this company. No part of this document may be
reproduced, transmitted, transcribed, stored in a retrievable system,
or translated into any natural or computer language, in any form or
by any means without prior written permission. This manual and the
information contained here are protected by copyright. All rights
reserved.
Manual version: 1.0
Ref. No: 3053323
Published in 2001

Warning and disclaimer
This manual is designed to provide information about the Pentium®
II/III main board. Every has effort have been made to make this
manual as accurate as possible, but no warranty or fitness is implied.
All the information is provided on an 'as is' basis. The author and his
corresponding publishing company shall have neither liability nor
responsibility to any person or entity with respect to any loss or
damages arising from the information contained in this manual or
from the use of the system board that accompanies it.
Information contained in this manual is subject to change without
notice. The manufacturer of the system board will not be held
responsible for technical or editorial omissions made herein, nor for
the incidental or consequential damages resulting from its
furnishing, performance, functionality or use. Subsequent changes to
this manual will be incorporated into the next edition. We welcome
any suggestion regarding this manual or our computer products.
Trademarks
●Intel®and Pentium®are registered trademarks of Intel®Corporation.
●IBM®is a registered trademark of International Business Machines
Corporation.
●Microsoft®is a registered trademark of Microsoft®Corporation.
●PCI®is a registered trademark of PCI®Special Interest Groups.
●AWARD®is a registered trademark of Award Software Inc.
All other trademarks are the property of their respective owners.

INTEL 815EP I
Table of Contents
 Chapter 1 Introduction…………………..…...…..…....1
1-1 Overview…………………..…………….………...…………….….1
1-2 Specifications…….……………………….….………..……………3
1-3 System Block Diagram……………………………………………4
1-4 Notice of Hardware Installation.……...………..…....…………….5
1-5 Notice of CD Driver Installation...………….……..………………6
1-6 Software Driver Installation……………..………………………...7
 Chapter 2 Installation………………………….………8
2-1 Layout Reference…………………………………………………8
2-2 Jumper Setting.....………………….…………………………...…9
2-2-1 JP22 : Keyboard Wake Up Selector…………………………….9
2-2-2 JP17 : Flash ROM Function Selector……………………….10
2-2-3 JP12 : CMOS Status……………………………………………...11
2-2-4 S2 : CPU Frequency Selector……………………………….……12
2-3 Connectors ………………………………..….………………...…13
2-3-1 Front Panel………...……………………………………….…....14
2-3-2 Back Panel.…………………………………….…….…..…….….15
KBD/PS2 MOUSE………………………………………………………16
USB1/USB2………………………………………………………………16
COM1 & COM2…………..………………………………………………16
LPT………………………………………………………………………16
Midi/Game Port & External Audio Connectors………………………16
2-3-3 ATX Power Supply Connector……………………...……….….17
2-3-4 CPU Fan Connectors………………………….………….…..…..18
2-3-5 I.R1: IrDA Connector……………………….……….…….…….19
2-3-6 Floppy Disk Connector………………………………………..….20
2-3-7 IDE1 & IDE2…………………. .…….………..………….………21
2-3-8 JP25/JP26 : CD-IN………………………………………….22
2-3-9 WOL1 : Wake up on LAN……………………………………….23
2-4 DIMM Installation…….…………..…….…………….…...…….24

INTEL 815EP II
 Chapter 3 BIOS Setup.……….……………..…..…..26
3-1 Award BIOS CMOS Setup….……………………………….…26
3-1-1 Standard CMOS Features……………………………….……27
3-1-2 Advanced BIOS Features …………… ……………………….30
3-1-3 Advanced Chipset Features………….…..……………………34
3-1-4 Integrated Peripherals……………..……………………………36
3-1-5 Power Management Setup……….. …….………………………41
3-1-6 PnP/PCI Configuration Setup…………………………………...44
3-1-7 PC Health Status………………………………………………….46
3-1-8 Frequency/Voltage Control………………………………………47
3-1-9 Load Fail-Safe Defaults………….……………………………48
3-1-10 Load Optimized Defaults...………………………………………49
3-1-11 Supervisor/User Password………………………………………50
3-1-12 Save & Exit Setup…………………………………………….53
3-1-13 Quit Without Saving………………………………………...……54
 Chapter 4 Appendix………………………………...55
4-1 Memory Map…………………………………………………..55
4-2 I/O Map…………………………………………….. ……….…56
4-3 Time & DMA Channels Map……………………………………57
4-4 Interrupt Map…………………………………………….……58
4-5 RTC & CMOS RAM Map…………………………………..…59
4-6 Award BIOS Hard Disk Type…………………...…………… 60
4-7 ISA I/O Address Map……………………………………………62
 Chapter 5 Q & A……………….……………………64
5-1 Error Messages During Power on Self Test…………...…...…64

INTEL 815EP 1
Chapter 1 Introduction
1-1 Overview
The main board utilizes Intel’s latest i815EP chipset integrated with new
architects such as high-speed 2X/4X mode AGP interface multiplexed
UDMA66/100, CNR (communication Networking Riser) SDRAM, USB port are
designed to fit INTEL®PPGA and FC-PGA Celeron CPUs or FC-PGA PIII®
CoppermineTM /CyrixIII CPUs.
The Intel®815EP Chipset is a high-flexibility chipset designed to extend from the
basic graphics/multimedia PC platform up to the mainstream performance desktop
platform. The chipset consists of a Memory Controller Hub(Intel®815 MCH), an
I/O Controller Hub(ICH) for the I/O subsystem, and a Firmware Hub(FWH). The
Intel®815EP MCH integrates a system memory SDRAM controller that supports a
64-bit 100/133 MHz SDRAM array.
The main board also employs I/O LPC controller utilizing with fully Plug and
Play device and keyboard password setup. It supports 2.88 MB Floppy, Dual
16550 compatible (with 16 bytes FIFO, up to 460K baud rate) serial Port, ECP
(Enhanced Capabilities Port), EPP(Enhanced Parallel Port) parallel port,
SPP(Standard Parallel Port), Infrared IrDA (HPSIR), and Amplitude Shift Keyed
IR. (ASKIR) port and hardware monitor functions too.
The main board contains 5*PCI for highest performance I/O add-on adapter cards.
The system board supports three Bus Mastering Slots for high-performance I/O
add-on cards. It supports Matrix Independent PCI routing for optimal multiple PCI
adapter operations and is PCI 2.2 specification compliant. It supports back to back
sequential CPU to PCI Memory writes to PCI Burst Write for full PCI throughput.
The new CNR Slot is designed to fit C(Communication) N(Networking) R(Riser)
orMRcard.

INTEL 815EP 2
The main board has 3 dual in-line memory modules (DIMM) which can be
installed with PC-100/PC-133 SDRAM memory. The memory subsystem
supports up to 512 MB SDRAM of non-buffered 3.3V using standard 168-pin
DIMM sockets.
In conclusion, the system chipset and design make the main board a high
performance, cost-effective, and energy efficient main board which meets a
variety of price/performance levels. The main board is an ideal platform for the
increasing requirements of today’s and future’s desktop applications.
AC-97, CNR are optional functions.


INTEL 815EP 3
1-2 Specifications
● PCB Board size : 30.5cm(L) x 19.0cm(W), ATX form factor, 4 layers PCB.
● CPU : Socket370 for Intel®CeleronTM/CoppermineTM PIII®or VIA CyrixIII
CPU up to 1GHz or faster processor.
CPU is not enclosed in the package.
● Memory : Supports up to 3 double sided DIMMs at 100MHz system
memory bus.
Supports up to 2 double sided or 3 single sided DIMMs at
133MHz system memory bus.
● AGP : support 1X/2X/4X AGP VGA cards.
● Expansion Slot : 5 x PCI slots, 1 x AGP, 1 x CNR
● Other features
•Windows 95/98 power off
•Keyboard wake-up
•Mouse wake-up
•DMI, ACPI supported BIOS
INTEL 815EP chipset only supports up to 2 double sided DIMMs at
133MHz CPU Bus.



INTEL 815EP 4
1-3 System Block Diagram
Intel Pentium III Processor,
or
Intel Celeron Processor
or
VIA CyrixIII Processor
MCH
( Memory Controller
Hub)
- Memory Controller
- AGP Controller
- Graphics Controller
- 3D Engine
System
Memory
AGP Connector
System Bus(66/100/133 MHz)
Intel 815EP Chipset
100/133 Mhz
ICH
(I/O Controller Hub)
FWH
(Fireware Hub)
Super
I/O
Audio Codec
Modem Codec
PCI Bus
PCI Slots
(ICH=6 Req/Gnt pairs)
LPC
LAN
Option
USB
USB
4 USB
Ports
2 IDE Ports
Ultra ATA/66
ATA/100
AC'97
USB
USB
AGP 2X/4X

INTEL 815EP 5
1-4 Notice of Hardware Installation
Before installing the main board hardware, please note the following things.
A. Check the package
If any of the below items is missing or damaged, contact the dealer from whom
you purchase. Leave this main board in its original package until you are ready to
install it. In the package, there are:
•the mainboard
•manual
•cables
•driver & utility / CD
B. Make sure power is off.
During hardware installation, be sure that there is no power connected in this
period.
C. Avoid ESD (Electrical Static Discharge)
While working with this main board, always wear a grounded wristband or ankle
strap to avoid ESD (Electrical Static Discharge).

INTEL 815EP 6
1-5 Notice of CD Driver Installation
This CD contains the following drivers. The user must read “Index” (HTML
format) before installing required drivers. Index offers all the information on all
the drivers.
CD driver is always updated with the latest version, and thus the actual CD content
may be different from the above picture.
1. Main boards: 5gxm, 6aap5, 6va693a, 6va693am, 6va694, 6vapm, 6vmple1,
6vmple2, 6vple1, Amdk7, I810, I815e,Intv, K7vat, Kx133, Vap266, (please
select I815e directory for this main board)
2. For sound codec drivers (AD1881), please load from i815e directory.
3. DX7: Windows DirectX7 driver.
4. Flashrom: Bios flashupgrade utility .


INTEL 815EP 7
1-6 Software Driver Installation
Unlike i440BX, i815EP chipset is not supported by the drivers within Windows
operating system, USERS NEED TO INSTALL DRIVERS VERY
CAREFULLY OR SYSTEM WILL HANG UP UNEXPECTEDLY!
Load drivers from attached CD & find sub-directories under i815E directory as:
Inf……………………………..(Setup driver for i815EP chipset)
Load drivers from attached CD & find sub-directories under i815E directory as:
AD1881………………..(Drivers for sound function)
User needs to install drivers
Inf →AD1881 as below:
FOR WINDOWS OPERATNG SYSTEM :
(1) Install Inf :
Load attached CD & find “Inf” directory. Then execute “Setup” file.
(Window versions are Win98 or higher version).
(2) Audio Driver Installation
Find “AD1881” sub-directory, then find Win-98 sub-directory, then find
“Win98” execute “SETUP” & restart system.

INTEL 815EP 8
Chapter 2 Installation
2-1 Layout Reference
FAN1
FAN3
FAN2
CNR1
Intel
815EP
I/O
JP12
JP 26
JP 25 JP 22
ATXPower
JP 17
BI OS
S2
WOL1
IR1
WAKE -ON-LINE
USB2
6A815EPVER:1.0
JP 27

INTEL 815EP 9
2-2 Jumper Setting
2-2-1 JP22 : Keyboard Wake up Selector
JP22 is a 3-pin selector which provides keyboard wake up function. Set “1-2” to
disable and set “2-3” to enable keyboard wake up function.
JP 22 : Keyboard
Wake up Selector
123
1
2
3
Set to "1-2" :
Normal(default)
Set to "2-3" :
Enable keyboard
wake up function

INTEL 815EP 10
2-2-2 JP17 : Flash ROM Function Selector
JP17 is a 2-pin connector which provides Flash ROM function “enabled/
disabled” as below.
JP 17 : Flash ROM
Function Selector
ON OFF
UNLOCK LOCK

INTEL 815EP 11
2-2-3 JP12 : CMOS Status
Please clear CMOS if password is forgotten. Below is the detail to clear CMOS.
Procedure to clear CMOS:
Step 1: Shut down the system and disconnect the power supply from AC power.
Step 2: Pull out the power supply cable from the power connector.
Step 3: Short the CMOS jumper by putting jumper cap on Pin 2-3 for a few seconds.
Step 4: Return the cap to pin 1-2 at normal setup.
Step 5: Link the power cable to the connector & connect AC power to power supply.
Step 6: Turn on system power.
If you’d like to set password, press “Del” Key during system boot up to enter
CMOS setup and establish a new password.
JP 12 : CMOS Status
1
2
3
1
2
3
Set to "1-2" :
Normal(default)
Set to "2-3" :
Clear CMOS


INTEL 815EP 12
2-2-4 S2 : CPU Frequency Selector
S2 is a 2-port connector which provides CPU Frequency selection. Please select
the right ratio according to your CPU and set details as below.
S2:CPU Frequency
Selector
S2
ON
1
2
(Default)
S2 Clock Selector
CPU SDRAM 1 2
66 MHz 100MHz ON ON 1ON
2
133MHz 133MHz ON OFF
1ON
2
100MHz 100MHz OFF ON
1ON
2
133MHz 100MHz OFF OFF
1ON
2
TheCPUfrequencyisautomatically detected .The default setting
(1-2 ON) allows the system to detect Celeron processors at startup.

INTEL 815EP 13
2-2-5 JP27:Prianary and Secondary Select
JP27: Prianary and
Secondary Select
Set to "1-2"
Prianary
Set to "OFF"
(default)
For non-AC97 on board.

INTEL 815EP 14
POWER LED
SPEAKER
RESET
HD LED
TURBO LED
POWER ON
2-3 Connectors
2-3-1 Front Panel
Front panel has connectors such as “POWER LED” “SPEAKER,” “RESET,”
“HD LED,” “TURBO LED,” “POWER ON.” Please refer to the following
further information.

INTEL 815EP 15
POWER LED is a 3-pin connector. It is used to connect the LED on the case front
panel. The LED shows the status of the power.
SPEAKER is a 4-pin keyed Berg strip. It is used to connect to the case speaker to
the main board for sound purpose.
RESET is a 2-pin keyed Berg strip, connected to the push button reset switch on
the case’s front panel. Shorting both pin 1 & pin 2 can reset the system, which is
similar to the power off and then on again.
HD LED (Hard Disk activity LED connector) is a 2-pin keyed Berg strip. It is
used to connect to front panel Hard Disk LED.
TURBO LED is a 2-pin Berg strip on case front panel indicates the current speed
status of system.
POWER ON is ATX Soft-PWR with 2 pins. SOFT-PWR is for ATX power
supply only.