
R-12-02-091220
BX2000+
USER'S MANUAL
1. Support Suspend To RAM Function.
2. CPU Over Voltage Select (Magic Booster).
3. Support Dual BIOS and BIOS Write Protection.
4. System power on by PS/2 Mouse: First, enable this function
in CMOS Setup, then you can power on the system by double
clicking the right or left button of your PS/2 Mouse.
5. System power on by Keyboard: If your ATX power supply
supports 300 mA 5V Stand-By current (depends on the
specification of keyboards) , you can power on your system
by entering password from the keyboard after setting the
“Keyboard power on” password in CMOS Setup.
6. Supports 3 steps ACPI LED.
7. Modem Ring-On (COM A , B).
8. Wake-Up on LAN (The ATX power supply supports larger
than 720 mA 5V Stand-By current).
Pentium II / III / Celeron Processor MAINBOARD
REV. 1.2 Second Edition

BX2000+
1
The author assumes no responsibility for any errors or omissions which may
appear in this document nor does it make a commitment to update the
information contained herein.
Third-party brands and names are the property of their respective owners.
Sound Blaster is a registered trademark of Creative Technology Ltd in the
United States and certain other countries. Sound Blaster-LINK and SB-LINK
are trademarks of Creative Technology Ltd.
Dec. 20, 1999 Taipei, Taiwan

Quick Installation Guide
2
I. Quick Installation Guide :
CPU SPEED SETUP
The system bus speed is selectable between 66 / 100 MHz. The user can select
the system bus speed and change the DIP SWITCH
(SW)
selection to set up
the CPU speed for 233 - 800MHz processor.
Pentium II / III
CPU
1 2 3 4 5 6 7 8
233 / 66MHz
OFF OFF ON ON ON OFF OFF ON
266 / 66MHz
ON ON OFF ON ON OFF OFF ON
300 / 66MHz OFF ON OFF ON ON OFF OFF ON
333 / 66MHz
ON OFF OFF ON ON OFF OFF ON
366 / 66MHz
OFF OFF OFF ON ON OFF OFF ON
400 / 66MHz
ON ON ON OFF ON OFF OFF ON
433 / 66MHz
OFF ON ON OFF ON OFF OFF ON
466 / 66MHz
ON OFF ON OFF ON OFF OFF ON
500 / 66MHz
OFF OFF ON OFF ON OFF OFF ON
533 / 66MHz
ON ON OFF OFF ON OFF OFF ON
* 566 / 66MHz OFF ON
OFF OFF ON OFF OFF ON
350 / 100MHz
OFF OFF ON ON OFF OFF OFF OFF
400 / 100MHz
ON ON OFF ON OFF OFF OFF OFF
450 / 100MHz
OFF ON OFF ON OFF OFF OFF OFF
500 / 100MHz
ON OFF OFF ON OFF OFF OFF OFF
550 / 100MHz
OFF OFF OFF ON OFF OFF OFF OFF
600 / 100MHz
ON ON ON OFF OFF OFF OFF OFF
650 / 100MHz
OFF ON ON OFF OFF OFF OFF OFF
700 / 100MHz
ON OFF ON OFF OFF OFF OFF OFF
750 / 100MHz
OFF OFF ON OFF OFF OFF OFF OFF
800 / 100MHz
ON ON OFF OFF OFF OFF OFF OFF
*
850 / 100MHz OFF ON OFF OFF OFF OFF OFF OFF
«
We don’t recommend you to setup your CPU ratio above 8 nth, it
doesn’t support now.

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Main Clock Table
CLK 5 6 7 8
66 MHz
ON OFF OFF ON
152 MHz
ON OFF ON OFF
142MHz
ON ON OFF OFF
100 MHz OFF OFF OFF OFF
112MHz OFF OFF ON OFF
124 MHz OFF ON ON OFF
133 MHz OFF ON OFF OFF
PCI Run 44.3 MHz
133 MHz ON ON ON OFF
PCI Run 33.3 MHz
«
Note: We don’t recommend you to setup your system speed to 152,
142, 112, 124 or 133MHz because these frequencies are not the
standard specifications for CPU, Chipset and most of the
peripherals. Whether your system can run under 152, 142, 112, 124
or 133MHz properly will depend on your hardware configurations:
CPU, SDRAM, Cards, etc.
Frequency Table:
DIP SWITCH (SW)
FREQ. RATIO
1 2 3 4
X 3 ON OFF ON ON
X 3.5 OFF OFF ON ON
X 4 ON ON OFF ON
X 4.5 OFF ON OFF ON
X 5 ON OFF OFF ON
X 5.5 OFF OFF OFF ON
X 6 ON ON ON OFF
X 6.5 OFF ON ON OFF
X 7 ON OFF ON OFF
X 7.5 OFF OFF ON OFF
X 8 ON ON OFF OFF
X 8.5 OFF ON OFF OFF
X 9 ON OFF OFF OFF
X 9.5 OFF OFF OFF OFF
«
We don’t recommend you to setup your CPU ratio above 8 nth, it
doesn’t support now.

BX2000+
5
1. Pentium II / Celeron 233 / 66 MHz FSB
CPU
2. Pentium II / Celeron 266 / 66 MHz FSB
3. Pentium II / Celeron 300 / 66 MHz FSB
SW
4. Pentium II / Celeron 333 / 66 MHz FSB
SW

Quick Installation Guide
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5. Pentium II / Celeron 366 / 66MHz FSB
SW
6. Pentium II / Celeron 400 / 66MHz FSB
SW
7. Pentium II / Celeron 433 / 66MHz FSB
SW
8. Pentium II / Celeron 466 / 66MHz FSB
SW
9. Pentium II / Celeron 500 / 66MHz FSB
SW
10. Pentium II / Celeron 533 / 66MHz FSB
SW

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11. Pentium II / Celeron 566 / 66MHz FSB (Reserve)
SW
12. Pentium II 350 / 100 MHz FSB
SW
13. Pentium II 400 / 100 MHz FSB
SW
14. Pentium III 450 / 100 MHz FSB
SW
15. Pentium III 500 / 100 MHz FSB
SW
16. Pentium III 550 / 100 MHz FSB
SW

Quick Installation Guide
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17. Pentium III 600 / 100 MHz FSB
SW
18. Pentium III 650 / 100 MHz FSB
SW
19. Pentium III 700 / 100 MHz FSB
SW
20. Pentium III 750 / 100 MHz FSB
SW
21. Pentium III 800 / 100 MHz FSB
SW
22. Pentium III 850 / 100 MHz FSB (Reserve)
SW
« We don’t recommend you to setup your CPU ratio above 8 nth, it
doesn’t support now.

BX2000+
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II. Jumper setting :
SPK : External Speaker/ Internal Buzzer Connector
CPU
1 VCC
2 VCC
3 Data
4 Data
Normal
Operation
Close Reset Hardware
System

Quick Installation Guide
10
PW LED : Power LED Connector
CPU
HD : IDE Hard Disk Active LED
CPU

BX2000+
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IR : Infrared Connector (Optional)
CPU
1
IR data output
2 GND
3 IR data input
4 NC
5 VCC (+5V)
GN : Green Function Switch
CPU
Close Entering Green
Mode

Quick Installation Guide
12
GD : Green LED
CPU
Soft Power: Soft Power Connector
CPU

BX2000+
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ATX POWER: ATX Power Connector
CPU
Pin No. Function
3,5,7,13,1
5-17
GND
1,2,11 3.3V
4,6,19,20 VCC
10 +12V
12 -12V
18 -5V
8 Power Good
9 5V SB stand by+5V
14 PS-ON(Soft On/Off)
PS/2 Mouse / Keyboard Connector
CPU
PS/2 Mouse/ Keyboard
Pin No. Function
1 Data
2 NC
3 GND
4 VCC(+5V)
5 Clock
6 NC
PS/2 Keyboard
PS/2 Mouse
1

Quick Installation Guide
14
USB : USB Port
CPU
PIN No. Function
1
USB V0
2 USB D03
USB D0+
4 GND
5
USB V1
6 USB D17 USB D1+
8 GND
CPU FAN : CPU Cooling Fan Power Connector
CPU

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POWER FAN : Power Fan Connector
CPU
PANEL (SYSTEM) FAN : Panel (System) Fan Connector
CPU

Quick Installation Guide
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IDE1: For Primary IDE Port
CPU
IDE2: For Secondary IDE Port
CPU

BX2000+
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ULTRA66-1: For Ultra66 Primary IDE Port
CPU
ULTRA66-2: For Ultra66 Secondary IDE Port
CPU

Quick Installation Guide
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JP4 :ATA66 Disable / Enable
CPU

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LPT PORT / COM A / COM B
CPU
JP1 : PS/2 Keyboard Power On Selection
CPU
PIN No. Function
1-2
close
PS/2 Keyboard Power on
Enabled
2-3
close
PS/2 Keyboard Power on
Disabled (Default)

Quick Installation Guide
20
J15: System After AC Back
CPU
PIN No. Function
Open
Soft Off (Default)
PIN No. Function
1
+5V SB
2 GND
3
Signal

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JP8:SB-LINK Creative PCI Sound Card Support (Optional)
CPU
1
Signal
2 GND
3 NC
4 Signal
5 GND
6 Signal
JP11 : System Acceleration
CPU
PIN No. Function
1-2 close
For 100MHz Turbo and other
frequencies.
2-3 close For 100MHz Normal(Default)

Quick Installation Guide
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JP12 : Case Open
CPU
PIN No. Function
1
Signal
2 GND
JP14 : Clear CMOS Function
CPU
PIN No. Function
1-2 close
Clear CMOS
2-3 close Normal (Default)