AOpen AX4SPE MAX Easy Installation Manual page 3

3. Connecting ATX Power Connector
This motherboard comes with a 20-pin and 4-pin ATX power connector as shown below.
Make sure you plug in the right direction. We strongly recommend you to insert the 4-pin
connector before connecting the 20-pin connector.
4. Connecting Front Panel Cable
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.
1
SPWR
ACPI & PWR
IDE LED
LED
ACPI LED (BLUE)
Speaker
1
Reset
NC
NC
+5V
IDE LED
IDE LED
+5V
+5V
GND
NC
SPEAKER
5VSB
SPWR
ACPI LED-
GND
ACPILED
NC
ACPI_B
GND
RESET
GND
5. Setting CPU Voltage & Frequency
Full-range Adjustable CPU Core Voltage
This motherboard supports CPU VID function. The CPU core voltage will be automatically
detected and the range is from 1.1V to 2.025V. 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 Bus Frequency
Core Frequency = CPU FSB Clock * CPU Ratio
CPU Ratio 8x, 10x... 21x, 22x, 23x, 24x
CPU FSB
FSB = 100MHz-400MHz by 1MHz Stepping
(Adjustment manually)
CPU Overclocking
Northwood CPU Core FSB
CPU Frequency Clock
Pentium 4 1.8G 1800MHz 100MHz
Pentium 4 2.0G 2000MHz 100MHz
Pentium 4 2.2G 2200MHz 100MHz
Pentium 4 2.2G 2200MHz 133MHz
Pentium 4 2.26G 2260MHz 133MHz
Pentium 4 2.4G 2400MHz 100MHz
Pentium 4 2.4G 2400MHz 133MHz
Pentium 4 2.53G 2530MHz 133MHz
Pentium 4 2.6G 2600MHz 200MHz
Pentium 4 2.66G 2660MHz 133MHz
Pentium 4 2.8G 2800MHz 133MHz
Pentium 4 2.8G 2800MHz 200MHz
Pentium 4 3.06G 3000MHz 200MHz
Note: Intel Springdale-PE
chipset only
Northwood
System
Ratio
and don't
Bus
Willamette or
400MHz 18x
processors.
processor would detect
400MHz 20x
the clock
400MHz 22x
automatically, you may
533MHz 16x
not be able to adjust the
clock ratio
533MHz 17x
manually.
400MHz 24x
533MHz 18x
533MHz 19x
Warning:
800MHz 13x
Springdale-PE chipset
533MHz 20x
supports
533MHz 21x
800MHz (200MHz*4)
system bus
800MHz 14x
66MHz AGP
800MHz 15x
higher clock
may cause
system damage.
support
processors,
support
Celeron
Northwood
ratio
in BIOS
Intel
maximum
and
clock;
setting
serious