Installing Cpu - AOpen AX4T Installation Manual

3. Installing CPU

CPU socket lever
CPU Pin 1 and cut edge
4. Installing CPU & Housing Fan
Plug in the CPU fan cable to the 3-pin CPU FAN (FN2 or FAN1 w/o H/W monitoring)
connector. If you have chassis fan, you can also plug it on FN3 or FN4 (without H/W
monitoring) connector.
+12V
GND SENSOR
Chassis Fan Connector
1.
Pull up the CPU socket lever and up
to 90-degree angle.
2.
Locate Pin 1 on the socket and look
for a (golden) cut edge on the CPU
upper interface. Match Pin 1 and cut
edge. Then insert the CPU into the
socket.
3.
Press down the CPU socket lever to
finish CPU installation.
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well,
you may damage the CPU.
AUX Fan Connector
SENSOR
CPU Fan Connector
+12V
Note: Some CPU fans do not have
sensor pin so they cannot support fan
monitoring.
5. Setting CPU Voltage & Frequency
Setting CPU Core Voltage
This motherboard supports CPU VID function. The CPU core voltage will be automatically
detected.
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 Setup
Core Frequency = CPU FSB Clock * CPU Ratio
CPU Ratio 8x, 9x, 10x... 21x, 22x, 23x
CPU Core
CPU
Frequency
Pentium 4
1300MHz
1.30G
Pentium 4
1400MHz
1.40G
Pentium 4
1500MHz
1.50G
6. JP9 Adjust FSB Frequency
This jumper allows you to select CPU FSB frequency manually. If you are not an
overclocker, we recommend you keep the jumper setting for default.
GND
+12V
SENSOR
Pin 1
GND
+12V
GND 1
FSB=133MHz
Warning:
System
FSB Clock Ratio
supports maximum 400MHz
Bus
(100MHz*4) system bus and
100MHz 400MHz 13x
66MHz AGP clock;
clock
100MHz 400MHz 14x
serious system damage.
100MHz 400MHz 15x
1
FSB=100MHz
(Default)
®
Intel 850 chipset
higher
setting may cause