Back cache providing workstation level computing perf ormance,
and SIMM sockets support up to 64MB of DRAM.
The
EXP8449
Three PCI Local Bus slots provide a high bandwidth data pat h for
data-movement intensive function such as Graphics. Four ISA
slots complete the I/O mix.
The
EXP8449
high performance, highly expandable platforms which deliver the
latest in CPU and I/O technologies.
motherboard provides the foundation for cost effective,
CPU Clock : 25/33/40/50 MHz CPU
Memory : Up to 128MB
Memory Configuration :
1MB/2MB/4MB/8MB/16MB/32MB/64MB
SRAM Configuration : 128KB/256KB/512KB
BIOS Subsystem : AMI BIOS
I/O Subsystem No. Slot : Four 16-bit ISA Bus and three PCI
Bus
Dimension : 22cm x 22cm, 1/2 Baby AT Size
Additional Features
Miscellaneous Connectors : Reset Button, Internal Battery,
Turbo SW, Flash LED(Turbo LED) for Power Green
Board Design : Four-layer Implementation for Low Noise
Operation
1.4 SYSTEM PERFORMANCE
SOFTWARE
CPU TYPE
INTEL DX-
33MHz
AMD DX-40MHz
INTEL DX-2
LANDMARK
V2.0
110.97MHz 10.8MIPS 71.7
133.78MHz 13.0MIPS 86.4
167.20MHz 15.9MIPS 108.0
2
POWER
METER
V1.81 MIPS
NORTON
V8.0
CPU SPEED
Page 5
3
3
3
3
3
50MHz
INTEL DX2-
221.97MHz 20.8MIPS 143.3
66MHz
AMD DX2-80MHz
INTEL DX4-
267.57MHz 23.3MIPS 158.4
361.59MHz 29.0MIPS 197.1
100MHz
AMD DX4-
332.98MHz 31.6MIPS 215.0
100+MHz
AMD DX4-
401.38MHz 39MIPS 259.2
120MHz
CYRIX 5x86-
100MHz
INTEL P24T
420.92MHz 35.5MIPS 260.7
478.60MHz 37.4MIPS 262.8
1.5 EXP8449 BOARD LAYOUT
1
JP41
1
8042
JP5
JP4
1
JP6
JP9
W8375
COM
CO
1
1
1
↓
1
9 10
JP1
1
9
JP1
JP1
JP1
JP15
JP16
JP18
JP19
10
PCI
U10
JP17
M1489
W8378
PCI2
EXP8449 User’s Manual
MOUSE
BT
1
J
1 2
1
FDC
PRN
25 26
33
1 2
1 2
IDE
IDE
PCI1
39
39
KEYBOA
P1
P2
SM1 SM2 SM3
Bank
Bank
3
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EXP8449 User’s Manual
3
3
3
3
3
3
3
JP2
1
27010
RESE
J3
JP40
JP3
+ −
T/LE
T/S
J4
J5
1 5
KEYLO
M1487
HDDL
J6
J2
+ −
JP35
1 4
J7
#
JP25
JP24
3
1
JP30
6
5
"
#
JP31
JP26
"
131
131
"
JP32
JP23
JP20
JP36
$
3
3
1
1
6 5
JP27
2 1
6 5
2 1
JP33
U22
U13
JP4
1
CPU
SOCKET
U14
U15
U16
U17
JP2
JP2
1
JP3
1
1
JP37
5
JP2
1
4
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EXP8449 User’s Manual
CHAPTER 2
INSTALLATION
Before the system is ready to operate, the hardware must be set
up for various functions of the system. To set up the EXP8449
motherboard is a simple task. The user only has to set a few
jumpers, connectors and sockets.
2.1 DRAM INSTALLATION
The EXP8449 motherboard can support expanded memory from
1MB to 64MB. Either 1MB, 2MB, 4MB, 8MB,16MB, 32MB, SIM
Modules can be used on the EXP8449 motherboard.
The board layout below shows the locations of the DRAM
1. The PCI clock specification should be under 33MHz. (Including 33MHz) If you
encounter an unstable problem when you use the default set ting, we suggest you to
choose another setting for P CI clock.
2. JP13 and JP16 are used to select the PCI clock frequency. The frequency of PCI
clock will be the s ame as that of the CPU cloc k when Pin 2 and 3 of JP13 is closed
JP13
JP12
%
3
2
%
1
%
%
JP11
JP12
%
JP13
%
%
%
3
2
1
%
%
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EXP8449 User’s Manual
and JP16 is open. The frequenc y of PCI c loc k will be the half of that of the CP U cl ock
when Pin 1 and 2 of JP13 is closed and J P 16 i s closed.
50MHz
JP16
JP12
JP13
%
%
JP11
%
%
Default Setting
♣♣♣♣
3
2
1
%
%
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EXP8449 User’s Manual
3
3
3
3
3
3
313
1
27010
J3
RESE
JP2
JP20
M1487
JP40
JP3
J5
J4
T/LE
T/S
1 5
KEYLO
J2
JP35
1 4
JP23
JP26
"
JP25 6 5
#
JP24
1
1
6
3
5
1
1
JP31
"
"
JP32
JP30
JP36
3
1
JP27
2 1
6 5
2 1
JP33
$
3
1
CPU
SOCKET
U14
U15
U16
U17
JP2
JP2
1
JP3
1
CPU POWER VOLTAGE
3.45V 3.6V 4V 5V
♣♣♣♣
JP28
JP28
5
5
3
3
1
1
JP2JP2
%
%
JP34
JP34
%
%
3
3
2
2
%
%
1
1
6
6
4
4
%
%
2
2
%
%
3
3
2
2
%
%
1
1
5
3
1
JP28
JP2
%
JP34
%
3
2
%
1
6
%
4
2
%
3
2
%
1
5
3
1
JP28
JP2
%
JP34
%
3
2
%
1
6
4
2
%
%
3
2
%
1
JP28
%
%
JP34
%
%
U22
U13
1
JP37
5
JP2
1
3
2
1
3
2
1
Default Setting
♣♣♣♣
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EXP8449 User’s Manual
3
3
3
3
3
3
3
3
313
3
2.4 OTHER JUMPER SETTING
8042
1
27010
RESE
J3
JP2
JP41
M1487
JP40
JP3
1 5
T/S
T/LE
KEYLO
J5
J4
J6
1
JP35
1 4
J7
JP4
1
1
JP5
↓
JP6
1
JP9
JP25 6 5
#
JP24
J2
6
3
5
1
JP31
"
JP30
JP26
1
1
JP32
JP23
"
"
1
JP20
JP36
$
3
3
1
1
JP27
2 1
6 5
2 1
JP33
W8375
COM
CO
1
1
10
10
9
9
JP1
JP1
JP1
1
JP1
JP15
JP16
JP18
JP19
JP4
1
W8378
INTERNAL KEYBOARD CONTROL
MOUSE
BT
1
J
KEYBOA
P1
P2
24
Page 27
*ENABLE
DISABLE
JP19
%
%
Default Setting
♣♣♣♣
JP39
%
%
OTHER JUMPER DESCRIPTION
UMPERDESCRIPTION
JP5
JP6
JP9
JP15
JP21
EPP & ECP Function
1-2 DRQ1 2-3 DRQ3
EPP & ECP Function
1-2 DACK1 2-3 DACK 3
Printer Port
1-2 for IRQ 5 2-3 for IRQ 7
External Stop Button
1-2 for 5V Flash ROM
2-3 for 12 V Flash ROM
Default Setting
♣♣♣♣
EXP8449 User’s Manual
JP40
%
%
25
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EXP8449 User’s Manual
CONNECTOR DESCRIPTION
CONNECT
OR
J1
J2
J3 :
RESET
J4 :
TB-LED
J5 :
TURBO
SWITCH
J6 :
KEY LOCK
J7 :
SPEAKER
KB1:
KEYBOARD
CONNECTO
R
P1 & P2 :
POWER
CONNECTO
R
IDE1, IDE2
PIN OUT SIGNAL NAME
1 2 3 4
On Board IDE
LED
10,11,12
On Board IDE
Connector
1
2
1
2
Normal
1
2
3
4
5
1
2
3
4
1
2
3
4
5
1
2
3
4
5,6,7,8
9
1-2 Clear CMOS
2-3 For Normal
1-4 External Battery Connector
(1: Ground)
(4: External Battery Power In)
_
%
%
+
Ground
Reset In
+Anode
-Cathode
%
%
*
Turbo Speed
Power LED
Not Used
Ground
Keyboard Inhibitor
Ground
+5V DC
Data Out
Data Out
Data Out
Keyboard Clock
Keyboard-Data
Space
Ground
+5V
Power Good
+5V DC
+12V DC
-12V DC
Ground
-5V DC
+5V DC
26
Page 29
FDC1
PRN1
Floppy Connector
Printer Connector
CHAPTER 3
Default Setting
*
EXP8449 User’s Manual
SYSTEM BIOS SETUP
WinBIOS Setup can be accessed via keyboard, mouse, or pen.
The mouse click functions are:
• single click to change or select both global and current fields and
• double click to perform an operation in the selected field.
Using the keyboard with WinBIOS Setup
WinBIOS Set up has a built-in keyboard driver that uses simple
keystroke combinations:
KEYSTROK
E
<Tab> Move to the next window or field.
#, &, ", $
<Enter> Select in the current field.
+ Increments a value.
- Decrements a value.
<Esc> Closes the current operation and return to previous level.
<PgUp> Returns to the previous page.
<PgDn> Advances to the next page.
<Home> Returns to the beginning of the text.
<End> Advances to the end of the text.
<Alt>, <H> Access a help window.
<Alt><Spacebar> Exit WinBIOS Setup.
Alphabetic Keys A to Z are used in the Virtual Keyboard, and are not case
Numeric Keys 0 to 9 are used in the Virtual Keyboard and Numeric
Move to the next field to the right, left, above, or below.
sensitive.
Keypad.
FUNCTION
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EXP8449 User’s Manual
The hardware features and options of the EXP8449 are on-site
selectable for maximum flexibility. You will need to configure
these options through the built-in Setup Utility prior to using
EXP8449 for the first time. This setup Utility is a multi-screen,
menu driven program and is contained within the BIOS EPROM.
The following sections show the procedures that you may need to
configure the EXP8449:
1. Press <DEL> while turning on or rebooting the system to
invoke Setup Utility program .
2. The main menu will be shown as follows:
Figure 1
3. The functions are grouped into four categories which are
Setup, Utility, Security and Default .
4. By using <TAB> key or mouse cursor to select the function
group.
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EXP8449 User’s Manual
5. Use arrow keys or mouse to select the function icon within
the group. Then press <Enter> key to invoke the setup
function.
6. Use <Esc> Key to go back to the previous screen.
3.1 SYSTEM SETUP
There are five icons in the Setup Group.
Selecting Standard icon displays the following menu:
Figure 2
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EXP8449 User’s Manual
Selecting Date/Time icon displays the following menu:
Figure 3
After entering correct date and time, press <Esc> to go back to
the previous menu.
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EXP8449 User’s Manual
Selecting Floppy A/B icon displays the flowing menu:
Figure 4
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EXP8449 User’s Manual
Using arrow keys or mouse to select the correct specification of
floppy drive. Press <Esc> key to go back to the pr evious menu.
Figure 5
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EXP8449 User’s Manual
Selecting Master/Slave Disk icon displays the following menu:
Figure 6
Use arrow keys or mouse to select or enter the Master Hard
Disk specifications.
Press <Esc> to go back to the previous menu.
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EXP8449 User’s Manual
Selecting Slave Disk icon displays the following menu:
Figure 7
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EXP8449 User’s Manual
Selecting Advance icon displays the following menu:
Use arrow keys to select the desired entries and make
changes. Press <Esc> key to go back to the previous
menu.
Figure 8
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EXP8449 User’s Manual
Figure 9
Figure 10
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EXP8449 User’s Manual
Figure 11
Selecting Chipset icon displays the following menu:
Figure 12
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EXP8449 User’s Manual
NOTE:
Figure 13
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EXP8449 User’s Manual
1. Byte merge:
This feature is used t o mer ge byte or word to double word. Since
PCI is a 32-bit bus.
2. Fast Back to Back:
This feature is used to enable PCI f ast -back -t o-back cycle defined
in PCI specification.
But in our tests, not every PCI VGA card can accept these
features correctly, we suggest this feature programmed as an
option in CMOS setup.
CX5x86 Linear Wrapped Mode: For Linear Burst Mode of
5X86 (M1sc) CPU.
NOTE
:
Many entries on the screen are defined in PCI specification.
Unless you truely understand the meaning of these entries,
please DO NOT try to change the set t ings. For more detailed
information, refer to the PCI specification.
Figure 14
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EXP8449 User’s Manual
Figure 15
Figure 16
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EXP8449 User’s Manual
3.2 UTILITY
The
following icons appear in this section:
IDE SETUP If drive C: or D: is an IDE drive, the hard disk drive
parameters for dr ive C: or D: ar e automat ically detected
and reported to the Hard Disk Dr ive C: or D: screen in
Standard Setup, so you can easily configure drive C:
Color Set Set the WinBIOS Setup screen colors.
Language Permits you to select a foreign language-specific
or D:.
screen character set.
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EXP8449 User’s Manual
Figure 17
Figure 18
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EXP8449 User’s Manual
Use arrow key to select the desired entries and make changes, press
<Esc> key to go back to the previous menu.
WinBios Setup has an optional password feature. The system can
be configured so that all users must enter a password every time the
system boots or when WinBIOS Setup is executed. The following
screen appears when you select the password icon.
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EXP8449 User’s Manual
Figure 19
You can enter a password by:
•
typing the password on the keyboard,
•
selecting each letter via the mouse, or
•
selecting each letter via the pan stylus.
Pen access must be customized for each specific hardware platform.
The password check option is enabled in Advanced Setup by
choosing either Always (the password prompt appears every time
the system is powered on) or Setup (the password prompt
appears only when WinBIOS Setup is run). The password is
stored in CMOS RAM. The system asks for a password.
Enter a 1-6 charact er password. The password does not appear
on the screen when typed. W inBIOS will ask you to retype the
password. Make sure you write it down. If you forget it, you must
drain CMOS RAM and reconfigure the system. WinBIOS will then
display the following:
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EXP8449 User’s Manual
Figure 20
Select the Password icon from the Security section of the
WinBios Setup main menu. Enter the password and press
<Enter>. The screen does not display the characters entered.
After the new password is entered, retype the new password as
prompted and press <Enter>.
If the password confirmation is incorrect, an error message
appears. If the new password is entered without error, press
<Esc> to return to the WinBIOS Setup Main Menu. The
password is stored in CMOS RAM after WinBIOS Setup
completes. The next time the system boots, you are prompted for
the password if the password function is present and is enabled.
Remember the Password
Keep a record of the new password when the password is
changed. If you forg et the password and your computer has an
American Megatrends motherboard, rem ove the computer cover,
set switch 1-2 (the DIAG switch) to ON, power on the computer.
WinBIOS erases the password.
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EXP8449 User’s Manual
When this icon is selected from the Security section of the
WinBIOS Setup main menu, WinBIOS issues a warning when any
program (or virus) issues a Disk Format command or at tempts to
write to the boot sector of the hard disk drive. The following
screen appears when you select the Anti-Virus icon:
Figure 21
The setting are Enabled or Disabled. If enabled, the following
appears when a write is attempted to the boot sector. You may
have to type N several times to prevent the boot sector write.
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EXP8449 User’s Manual
3.3 DEFAULT
The icons in this section permit you to select a group of settings
for all W inBIOS Setup options. Not only can you use these icons
to quickly set system configurat ion parameters, you can choose a
group of settings t hat have a better chance of working when the
system is having configuration-related problems.
Original
Choose the Original icon to return to the system configuration
values present in WinBIOS Setup when you first began this
WinBIOS Set up session.
Optimal
You can load the optimal default set tings for the W inBIOS Setup
options by selecting the Optimal icon. The Optimal default
settings are best-case values that should optimize system
performance. If CMOS RAM is corrupted, the Optimal settings
are loaded automatically.
Fail-Safe
You can load the Fail-Safe WinBIOS Setup option settings by
selecting the Fail-Safe icon from the Default section of the
WinBIOS Setup main menu.
The Fail-Safe settings provide far from optimal system
performance, but are the m ost stable settings. Use this option as
a diagnostic aid if the system is behaving erratically.
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EXP8449 User’s Manual
Figure 22
Figure 23
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WINBIOS BEEP CODES
EXP8449 User’s Manual
BEEP
ERROR MESSAGE DESCRIPTION
S
1 Refresh Failure The memory refresh circuitry is faulty.
2 Parity error Parity error in the base memory (the
3 Base 64 KB Memory Failure Memory failure in first 64 KB.
4 Timer Not Operational A memory failure in the first 64 KB of
5 Processor error The CPU generated an error.
6 8042-Gate A20 Failure Cannot switch to protected mode.
7 Processor exception Interrupt
Error
8 Display Memory Read/Write Error The sys tem video adapter is either
9 ROM Checksum Error The ROM checksum value does not
10 CMOS Shutdown Register
Read/Write Error
11 Cache memory bad - do not
enable cache
first 64 KB block ) of memory.
memory, or Timer i s not functioning.
The CPU on the CPU Card generated
an exception interrupt.
missing or its memory is faulty. This
is not a fatal error.
match the value encoded in
WinBIOS.
The shutdown register for CMOS
RAM has failed.
The cache memory tes t failed.
Cache memory is disabled. Do not
press <Ctrl> <Alt> <+> to enable
cache memory.
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EXP8449 User’s Manual
What to Do If the Computer Beeps
Here is what you need to do if your computer has a WinBIOS and it starts
beeping:
IF THE SYSTEM
BEEPS...
1, 2, or 3 times...
6 times...
8 times...
9 times...
11 times...
4, 5, 7, or 10 times...
reseat the memory SIMMs or DI P s. If the system still beeps,
replace the memory.
reseat the keyboard controller chip. If it still beeps, replace the
keyboard controller. If it still beeps , try a different keyboard, or
replace the keyboard fuse, if the keyboard has one.
there is a memory error on the video adapter. Replace the
video adapter, or the RAM on the video adapter.
the BIOS ROM chip is bad. The s ys tem probably needs a new
BIOS ROM chip.
reseat the cache memory on the motherboard. If it still beeps,
replace the cache memory.
the motherboard must be repl aced.
THEM...
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RMA FORM
When the motherboard can not work well, please fill up this form to
describe related situations. If the space is not enough to use, you can
attach separate paper.
MODEL: MODEL NO:
HARDWARE
CPU:
Brand
MHz
CO-PROCESSOR:
__________
SIMM:
_________
CACHE:
TAG RAM:
BIOS DATE CODE
SYSTEM SPEED RUNNING
VIDEO CARD: