DFI AM75-EC User manual

AM75-EC
AM75-TC
Rev. A+
System Board Users Manual
Carte Mère Manuel Pour Ut l sateur
System-Plat ne Benutzerhandbuch
Manual del Usuar o de Placas Base
48110118

Copyr ght
This publication contains information that is protected by
copyright. No part of it may be reproduced in any form or by
any means or used to make any transformation/adaptation
without the prior written permission from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any
express or implied warranties of merchantability or fitness for any
particular purpose. The user will assume the entire risk of the use or
the results of the use of this document. Further, the manufacturer
reserves the right to revise this publication and make changes to its
contents at any time, without obligation to notify any person or
entity of such revisions or changes.
© 001. All Rights Reserved.
Trademarks
Microsoft® MS-DOS®, WindowsTM, Windows® 95, Windows® 98,
Windows® 98 SE, Windows® ME, Windows® 000 and Windows
NT® 4.0 are registered trademarks of Microsoft Corporation.
AMD, AthlonTM and DuronTM are registered trademarks of
Advanced Micro Devices, Inc. VIA is a registered trademark of
VIA Technologies, Inc. Award is a registered trademark of Award
Software, Inc. Other trademarks and registered trademarks of
products appearing in this manual are the properties of their
respective holders.
Caut on
To avoid damage to the system:
 Use the correct AC input voltage range.
To reduce the risk of electric shock:
 Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.

Battery:
 Danger of explosion if battery incorrectly replaced.
 Replace only with the same or equivalent type recommend by
the manufacturer.
 Dispose of used batteries according to the battery
manufacturers instructions.
Joystick or MIDI port:
 Do not use any joystick or MIDI device that requires more than
10A current at 5V DC. There is a risk of fire for devices that
exceed this limit.
FCC and DOC Statement on Class B
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 when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, 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:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and the receiver.
 Connect the equipment into 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.
Notice:
1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
. Shielded interface cables must be used in order to comply with
the emission limits.

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Table of Contents
Chapter 1
Quick Setup Guide.............................................
Chapter 2
English......................................................................
Chapter
Français (French).................................................
Chapter 4
Deutsch (German)................................................
Chapter 5
Español (Spanish)..................................................
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47
69
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Note:
The users manual in the provided CD contains detailed information
about the system board. If, in some cases, some information doesnt
match those shown in this manual, this manual should always be
regarded as the most updated version.

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Chapter 1 - Quick Setup Guide
Table of Contents
1.1 System Board Layout..................................................................................................
1. Jumpers.....................................................................................................................................
1.3 Ports and Connectors................................................................................................
1.4 Award BIOS Setup Utility.......................................................................................
6
8
11
0
AM75-EC
(VIA KM133)
AM75-TC
(VIA KM133A)
Chipset
CPU
JP10
(CPU FSB select)
VT8365/686B
100MHz FSB
û
VT8365A/686B
100/133MHz FSB
ü
This users manual is for the AM75-EC and AM75-TC system
boards. The differences between these boards are shown below.

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1.1 System Board Layout
AM75-EC
(Uses VIA KM133 - VT8365 and VT82C686B;
supports 100MHz FSB CPUs)

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AM75-TC
(Uses VIA KM133A - VT8365A and VT82C686B;
supports 100MHz/133MHz FSB CPUs)

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1.2 Jumpers
1.2.1 CPU Frequency Ratio - SW1
We do not recommend that you
adjust the CPU to a higher
frequency ratio because it may result
to the CPUs or systems instability
and are not guaranteed to provide
better system performance. If you
are unable to boot up the system
with the frequency ratio you
selected, please power off the
system and set SW1 pins 1-5 to
Off (Auto).
Ratio
Auto
5x
5.5x
6x
6.5x
7x
7.5x
8x
8.5x
9x
9.5x
10x
10.5x
11x
11.5x
1 x
1 .5x
1
Off
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
2
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
Off
On
On
Off
Off
On
On
Off
Off
On
On
Off
Off
On
On
Off
Off
4
Off
Off
Off
Off
Off
On
On
On
On
Off
Off
Off
Off
On
On
On
On
5
Off
On
On
On
On
Off
Off
Off
Off
Off
Off
Off
Off
On
On
On
On

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1.2.2 Clear CMOS Data - JP8
-3 On:
Clear CMOS Data
1- On:
Normal (default)
1
3
1
3
1.2. Onboard Audio Codec - JP4, JP5 and JP6
1- On:
Enable the
Onboard Audio
Codec (default)
-3 On:
Disable the
Onboard Audio
Codec
1
3
JP5JP4 JP6
1
3
JP5JP4 JP6

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1.2.5 Power Select for USB 1 (JP ) and USB 2 (JP50)
-3 On: 5VSB
1- On: 5V
(default)
1
3
1
3
1.2.4 CPUs Front Side Bus - JP10 (AM75-TC)
1
On: 100MHz
( 00MHz DDR) CPU
(default)
Off: 133MHz
( 66MHz DDR) CPU
1

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1. Ports and Connectors
1. .1 PS/2 Mouse and PS/2 Keyboard Ports
Make sure to turn off your computer
prior to connecting or disconnecting a
mouse or keyboard. Failure to do so
may damage the system board.
PS/ Mouse
PS/ Keyboard
1. .2 Universal Serial Bus Ports
USB 1
USB
(J19)
1 VCC
UP -
3 UP +
4 Ground
5 Key
6 VCC
7 UP3-
8 UP3+
9 Ground
10 Ground
11 Ground
1 Ground
13 UP +
14 UP -
15 VCC

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1. . Parallel Port
Parallel Port
1. .4 Serial Ports
COM
(J50)
COM 1
Serial Port
One card-edge bracket mounted
with a serial port cable is provided
for connecting the COM
secondary serial port.

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1. .6 Game/MIDI Port and Audio Jacks
Game/MIDI Port
Audio Jacks
Line-out
Line-in
Mic-in
1. .5 VGA Port
VGA Port

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1. .7 Internal Audio Connectors
1 Left audio channel
Ground
3 Ground
4 Right audio channel
1 Modem-out (from modem)
Ground
3 Ground
4 Modem-in (to modem)
AUX-in / CD-in
TAD
1. .8 Floppy and IDE Disk Drive Connectors
If you encountered problems while using an ATAPI CD-ROM drive that is
set in Master mode, please set the CD-ROM drive to Slave mode. Some
ATAPI CD-ROMs may not be recognized and cannot be used if
incorrectly set in Master mode.
FDD
IDE

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1. .10 Fan Connectors
1On
+1 V
3 Sense
1 On/Off
+1 V
3 Sense
1 Ground
+1 V
3N. C.
CPU Fan
Chassis Fan
Second Chassis Fan
1. .9 IrDA Connector
1 VCC
N. C.
3 IRRX
4 Ground
5 IRTX
The sequence of the pin functions on
some IrDA cable may be reversed
from the pin function defined on the
system board. Make sure to connect
the cable to the IrDA connector
according to their pin functions.

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1. .11 Wake-On-LAN Connector
The 5VSB power source of your power
supply must support ≥7 0mA.
1 +5VSB
Ground
3 WOL
1. .12 Wake-On-Ring Connector
1 Ground
RI#
If you are using a modem add-in card,
the 5VSB power source of your power
supply must support ≥7 0mA.

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1. .1 Power Connector
1 3.3V
3.3V
3 Ground
4 +5V
5 Ground
6 +5V
7 Ground
8 PW-OK
9 5VSB
10 +1 V
11 3.3V
1 -1 V
13 Ground
14 PS-ON
15 Ground
16 Ground
17 Ground
18 -5V
19 +5V
0 +5V
The system board requires a minimum of 300W electric current.

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1. .14 AGP 4x LED / DIMM/PCI Standby Power LED
The AGP 4x LED will light only when the AGP slot is installed with a 4x
add-in card.
The DIMM Standby Power LED will turn red when the systems power is
on or when it is in the Suspend state (Power On Suspend or Suspend to
RAM). It will not light when the system is in the Soft-Off state.
The PCI Standby Power LED will turn red when the system is in the
power-on, Soft-Off or Suspend (Power On Suspend or Suspend to RAM)
state.
Lighted LEDs serve as a reminder that you must power-off the system
then turn off the power supplys switch or unplug the power cord prior to
installing any memory modules or add-in cards.
On: Default
3.3VSB Standby Power to PCI slots
(PCI . spec.)
Off:
Non-PCI . spec.
1 1
. VSB Standby for PCI - Jumper JP1

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1. .15 Front Panel Connectors
1 HDD LED Power
HDD
3 N. C.
4 Green LED Power
5 Ground
6 N. C.
7 PWRBT+
8 PWRBT-
9 N. C.
10 SMI
11 Ground
1 N. C.
13 H/W Reset
14 Ground
15 N. C.
16 Speaker Data
17 N. C.
18 Ground
19 Speaker Power
0 N. C.
1 LED Power (+)
N.C.
3 LED Power (-) or
Standby Signal

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1.4 Award BIOS Setup Utility
1.4.1 Main Menu
1.4.2 Standard CMOS Features
CMOS Setup Utility - Copyright (C) 1984-2000 Award Software
Standard CMOS Features
Advanced BIOS Features
Advanced Chipset Features
Integrated Peripherals
Power Management Setup
PnP/PCI Configurations
PC Health Status
Frequency/Voltage Control
Load Fail-Safe Defaults
Load Optimized Defaults
Set Supervisor Password
Set User Password
Save & Exit Setup
Exit Without Saving
Esc
F10 : Quit : Save & Exit Setup ↑↓→← : Select Item
Time, Date, Hard Disk Type...
The settings on the screen are for reference only. Your version may not be
identical to this one.
↑↓→← :Move
CMOS Setup Utility - Copyright (C) 1984-2000 Award Software
Standard CMOS Features
Date (mm:dd:yy)
Time (hh:mm:ss)
IDE Primary Master
IDE Primary Slave
IDE Secondary Master
IDE Secondary Slave
Drive A
Drive B
Video
Halt On
Base Memory
Extended Memory
Total Memory
F6:Fail-Safe Defaults F7:Optimized Defaults
F1:General Help
Wed, Feb 28 2001
4 : 35 : 5
Press Enter None
Press Enter None
Press Enter None
Press Enter None
1.44M, 3.5 in.
None
EGA/VGA
All, But Keyboard
640K
129024K
130048K
Item Help
Menu Level
Change the day, month,
year and century
Enter:Select
F5:Previous Values +/-/PU/PD:Value F10:Save ESC:Exit
K
K
K
K