Connecting Front Panel Cable - AOpen AX4R Plus Installation Manual

3. Installing CPU & System Fan
Plug in the CPU fan cable to the 3-pin CPUFAN1 connector. If you have chassis fan, you
can also plug it on SYSFAN2 or SYSFAN3 connector.
GND
+12V
SENSOR
SYSFAN2 Connector

4. Connecting Front Panel Cable

FAN3 Connector
Attach the power LED, speaker, and reset switch connectors to
the corresponding pins. If you enable "Suspend Mode" item in
BIOS Setup, the ACPI & Power LED will keep flashing while the
system is in suspend mode.
Locate the power switch cable from your ATX housing. It is
2-pin female connector from the housing front panel. Plug this
connector to the soft-power switch connector marked SPWR.
SENSOR
+12V
GND
SYSFAN3 Connector
GND
+12V
CPUFAN1 Connector
SENSOR
Note: Some CPU fans do not have
sensor pin so they cannot support fan
monitoring.
1
IDE LED
Speaker
1
NC
NC
+5V
IDE LED
IDE LED
+5V
+5V
ACPILED_B
GND
NC
SPEAKER
5. Setting CPU Voltage & Frequency
CPU Core Voltage Auto Detectable
The CPU core voltage will be automatically detected. It is not necessary to set CPU core
voltage.
Setting CPU Frequency
This motherboard is CPU jumper-less design, you can set CPU frequency through the
BIOS setup, and no jumpers or switches are needed.
BIOS Setup > Frequency / Voltage Control > CPU Speed Setting
Core Frequency = CPU FSB Clock * CPU Ratio
CPU Ratio 8x, 9x, 10x... 21x, 22x, 23x, 24x
CPU FSB 100~248MHz
Northwood CPU CPU Core Frequency
Pentium 4 1.6G 1600MHz
Pentium 4 1.7G 1700MHz
Pentium 4 1.8G 1800MHz
Pentium 4 2.0G 2000MHz
Pentium 4 2.2G 2200MHz
Pentium 4 2.26G 2260MHz
Pentium 4 2.4G 2400MHz
Pentium 4 2.4G 2400MHz
Pentium 4 2.53G 2530MHz
Pentium 4 2.66G 2660MHz
Pentium 4 2.80G 2800MHz
Pentium 4 3.06G 3060MHz
SPWR
Willamette CPU CPU Core Frequency
ACPI & PWR
LED
Pentium 4 1.8G 1800MHz
Pentium 4 1.9G 1900MHz
ACPILED_BLUE
Pentium 4 2.0G 2000MHz
Reset
Celeron CPU CPU Core Frequency
1.7G 1700MHz
5VSB
1.8G
SPWR
1800MHz
ACPI LED-
GND
ACPILED
Note: Since the latest processor,
NC
Northwood, would detect the
GND
clock ratio automatically, you
RESET
may not be able to adjust the
GND
clock ratio in BIOS manually.
FSB Clock System Bus Ratio
133MHz 533MHz 12x
133MHz 533MHz 13x
100MHz 400MHz 18x
100MHz 400MHz 20x
100MHz 400MHz 22x
133MHz 533MHz 17x
100MHz 400MHz 24x
133MHz 533MHz 18x
133MHz 533MHz 19x
133MHz 533MHz 20x
133MHz 533MHz 21x
133MHz 533MHz 23x
FSB Clock System Bus Ratio
100MHz 400MHz 18x
100MHz 400MHz 19x
100MHz 400MHz 20x
FSB Clock System Bus Ratio
100MHz 400MHz 17x
100MHz 400MHz 18x
®
Warning: Intel E7205 chipset supports
maximum 400/533MHz (100/133MHz*4)
system bus and 66MHz AGP clock;
higher clock setting may cause serious
system damage.