Installing Processor - AOpen AX4B Easy Installation Manual

3. Installing Processor

This socket supports Micro-FC-PGA2 package CPU, which is the latest CPU package
developed by Intel. Other forms of CPU package are impossible to be fitted in.
CPU socket lever
CPU Pin 1 and cut edge
4. 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 (FAN2) or SYSFAN3 (AUX Fan) connector.
SYSFAN2 Connector
1.
Pull up the CPU socket lever and up to
90-degree angle.
2.
Locate Pin 1 in 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 and
finish CPU installation.
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
may damage the CPU.
SYSFAN3 Connector
CPUFAN1 Connector
GND
Note: Some CPU fans do not have
+12V
SENSOR
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 and the range is from 1.05V to 1.825V. 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
CPU FSB
Northwood CPU
Pentium 4 1.6G
Pentium 4 1.6G
Pentium 4 1.7G
Pentium 4 1.8G
Pentium 4 2.0G
Pentium 4 2.2G
Pentium 4 2.4G
Pentium 4 2.4G
Willamette CPU
Pentium 4 1.5G
Pentium 4 1.6G
GND
+12V Pentium 4 1.7G
SENSOR
Pentium 4 1.8G
Pentium 4 1.9G
Pentium 4 2.0G
Celeron CPU
1.7G
GND
1.8G
+12V
SENSOR
Warning: Intel
(100MHz*4) system bus and 66MHz AGP clock; higher clock
setting may cause serious system damage.
8x, 9x, 10x... 21x, 22x, 23x, 24x
100~248MHz
CPU Core Frequency FSB Clock System Bus
1600MHz 100MHz 400MHz
1600MHz 133MHz 533MHz
1700MHz 133MHz 533MHz
1800MHz 100MHz 400MHz
2000MHz 100MHz 400MHz
2200MHz 100MHz 400MHz
2400MHz 100MHz 400MHz
2400MHz 133MHz 533MHz
CPU Core Frequency FSB Clock System Bus
1500MHz 100MHz 400MHz
1600MHz 100MHz 400MHz
1700MHz 100MHz 400MHz
1800MHz 100MHz 400MHz
1900MHz 100MHz 400MHz
2000MHz 100MHz 400MHz
CPU Core Frequency FSB Clock System Bus
1700MHz 100MHz 400MHz
1800MHz 100MHz 400MHz
®
845 chipset supports maximum 400MHz
Ratio
16x
12x
13x
18x
20x
22x
24x
18x
Ratio
15x
16x
17x
18x
19x
20x
Ratio
17x
18x