Gigabyte 6EX User manual


R-01-02-080430
6EX
USER'S MANUAL
1 System power on by PS/2 Mouse: If you are using ATX power supply, you are able to
power on the system by double clicking any button of your PS/2 Mouse.
2 System power on by Keyboard: If your ATX power supply supports 720 mA 5V Stand-
By function, you can choose to power on your system by entering password and then
pressing the ENTER key from your keyboard.
3 Support 3 steps ACPI LED.
Pentium }} II Processor MAINBOARD[1]
REV. 1 Second Edition

Quick Installation Guide
2
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.
April 30, 1998 Taipei, Taiwan
I. Quick Installation Guide :
CPU SPEED SETUP
The default system bus speed is 66.6MHz. The user can select the system bus speed (JP2, JP3, JP4) and
change the DIP SWITCH (SW) selection to set up the CPU speed for 200 - 633MHz processor.
MMThe CPU speed must match with the frequency RATIO. It will cause system hanging up if the
frequency RATIO is higher than CPU's.
FREQ. RATIO DIP SWITCH (SW)
SW1 SW2 SW3 SW4
X 3 ON OFF ON ON
X 3.5 OFF OFF ON ON

6EX
3
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
MJP2, JP3, JP4 (Select the system speed66.6 MHz )
MAIN CLOCK JP2 JP3 JP4
66MHz 1-2 1-2 1-2

Quick Installation Guide
4
1.1.Pentium }} II 233 / 66MHz FSB
PIIX4
INTEL
443EX
ON
4321
CPU
3 2 1
JP2
JP3
JP4
OFF
SW
6EX
2. Pentium }} II 266 / 66MHz FSB
PIIX4
INTEL
443EX
ON
4321
CPU
OFF
SW
6EX
3 2 1
JP2
JP3
JP4

6EX
5
3. Pentium }} II 300 / 66MHz FSB
PIIX4
INTEL
443EX
ON
4321
CPU
OFF
SW
6EX
3 2 1
JP2
JP3
JP4
4. Pentium }} II 333 / 66MHz FSB
PIIX4
INTEL
443EX
ON
4321
CPU
OFF
SW
6EX
3 2 1
JP2
JP3
JP4
5. Pentium }} II 366 / 66MHz FSB

Quick Installation Guide
6
PIIX4
INTEL
443EX
ON
4321
CPU
OFF
SW
6EX
3 2 1
JP2
JP3
JP4
II. Jumper setting :
SPK : Speaker Connector
Pin No. Function
1
2
VCC (+)
NC
3NC
4Data (-)
1
PIIX4
INTEL
443EX
CPU
1
6EX
+-
RST : Reset Switch
PIIX4
INTEL
443EX
CPU
6EX Open:
Normal operation
Short:
For Hardware
Reset System

6EX
7
PWR : Power LED
PIIX4
INTEL
443EX
CPU
6EX
11
Pin No. Function
1
2LED anode (+)
LED cathode (-)3LED cathode (-)
Pin No. Function
1
2LED anode (+)
LED cathode (-)3NC
HD : IDE Hard Disk Active LED
PIIX4
INTEL
443EX
CPU
6EX
1
Pin No. Function
1
2
LED anode (+)
3
4LED anode (+)
LED cathode (-)
LED cathode (-)
1Pin No. Function
1
2LED anode (+) LED cathode (-)
IR : Infrared Connector (Optional)

Quick Installation Guide
8
PIIX4
INTEL
443EX
CPU
1
Pin No.
1
2
3
4
5
IR Data Output
GND
IR Data Input
NC
POWER (+)
6EX
Function
GN : Green Function Switch
PIIX4
INTEL
443EX
CPU
6EX
Open:
Normal operation
Short:
Entering Green
Mode.
GD : Green LED
PIIX4
INTEL
443EX
CPU
6EX
1
1
PIN1:LED
Anode (+)
PIN2:LED
Cathode(-)

6EX
9
Soft PWR : Soft Power Connector
PIIX4
INTEL
443EX
CPU
6EX
Open:
Normal
operation
Short:
Power On/Off
POWER : ATX Power Connector
PIIX4
INTEL
443EX
CPU
6EX
VCC (+5V)
Power Good
Pin No.
Function
4,6,19,20
GND
10
12
18
8
+12V
-12V
-5V
9
14 PS-ON
(Soft ON/OFF)
5V SB
(Stand by +5V)
13,15-17
3,5,7
1
11
FAN PWR : CPU Cooling Fan Power Connector

Quick Installation Guide
10
PIIX4
INTEL
443EX
CPU
6EX
1
Pin No. Function
1
2
3
GND
+12V
SENSE
J2: Keyboard Connector & PS/2 Mouse
PIIX4
INTEL
443EX
CPU
6EX
Function
2
4
1
3
5
6
Data
NC
VCC(+5)
GND
NC
Clock
Pin No.
PS/2 Mouse
PS/2 MOUSE
PS/2 KEYBOARD
PS/2 Keyboard
USB Port
PIIX4
INTEL
443EX
CPU
6EX