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.
Plug in the CPU fan cable to the 3-pin
CPU FAN
connector. If you have chassis fan, you
can also plug it on
System Fan
(FAN2) or
FAN3
(AUX Fan)
connector.
CPU Ratio
8x, 9x, 10x… 21x, 22x, 23x, 24x
CPU FSB
100 MHz
Northwood CPU
CPU Core Frequency
FSB Clock
System Bus
Ratio
Pentium 4 1.6G
1600MHz
100MHz
400MHz
16x
Pentium 4 1.8G
1800MHz
100MHz
400MHz
18x
Pentium 4 2.0G
2000MHz
100MHz
400MHz
20x
Pentium 4 2.2G
2200MHz
100MHz
400MHz
22x
Pentium 4 2.4G
2400MHz
100MHz
400MHz
24x
Willamette CPU
CPU Core Frequency
FSB Clock
System Bus
Ratio
Pentium 4 1.5G
1500MHz
100MHz
400MHz
15x
Pentium 4 1.6G
1600MHz
100MHz
400MHz
16x
Pentium 4 1.7G
1700MHz
100MHz
400MHz
17x
Pentium 4 1.8G
1800MHz
100MHz
400MHz
18x
Pentium 4 1.9G
1900MHz
100MHz
400MHz
19x
Pentium 4 2.0G
2000MHz
100MHz
400MHz
20x
5. Setting CPU Voltage & Frequency
Setting CPU Core Voltage
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
3. Installing Processor
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
may damage the CPU.
CPU socket lever
CPU Pin 1 and cut edge
4. Installing CPU & System Fan
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.
Note: Some CPU fans do not
have sensor pin so they cannot
support fan monitoring.
CPU Fan Connector
FAN2 Connector
GND
+12V
SENSOR
FAN3 Connector
Warning: Intel
®
845D chipset
supports maximum 400MHz
(100MHz*4) system bus and
66MHz AGP clock; higher clock
setting may cause serious
system damage.
Note: Since the latest processor,
Northwood, would detect the
clock ratio automatically, you
may not be able to adjust the
clock ratio in BIOS manually.
GND
+12V
SENSOR
