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
100~248MHz
CPU
CPU Core
Frequency
FSB Clock
System
Bus
Ratio
Pentium 4 1.4G
1400MHz
100MHz
400MHz
14x
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 2G
2000MHz
100MHz
400MHz
20x
Pentium 4 2.2G
2200MHz
100MHz
400MHz
22x
Pentium 4 2.4G
2400MHz
100MHz
400MHz
24x
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
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
Note:
Some CPU fans do not have
sensor pin so they cannot support fan
monitoring.
CPU Fan Connector
Warning:
Intel
®
845 chipset supports
maximum 400MHz
(100MHz*4) system
bus and 66MHz
AGP clock; higher
clock setting may
cause serious
system damage.
4. Installing CPU & System Fan
FAN2 Connector
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.
GND
+12V
SENSOR
FAN3 Connector
GND
+12V
SENSOR
GND
+12V
SENSOR
USBPWR0
USB_FP_P0-
US
GND
KEY
USBPWR0
USB_FP_P1-
US
GND
USB_FP_OC0
1 2
6. Support 2
nd
USB Port
This motherboard provides four
USB
connectors to connect USB devices, such as mouse,
keyboard, modem, printer, etc. There are two connectors on the PC99 back panel. You
can use proper cable to connect the other USB connector to the back panel or front panel
of chassis.
USB2 Connector
Pin 1
