Primary
Master (1st)
Primary
Slave (2nd)
Pin 1
Secondary
Slave (4th)
Secondary
Master (3rd)
CPU Ratio
8x, 9x, 10x… 21x, 22x, 23x, 24x
CPU FSB
100~248MHz by 1MHz stepping
Northwood CPU
CPU Core Frequency
FSB Clock
System Bus
Ratio
Pentium 4 2.0G
2000MHz
100MHz
400MHz
20x
Pentium 4 2.2G
2200MHz
100MHz
400MHz
22x
Pentium 4 2.26G
2260MHz
133MHz
533MHz
17x
Pentium 4 2.4G
2400MHz
100MHz
400MHz
24x
Pentium 4 2.4G
2400MHz
133MHz
533MHz
18x
Pentium 4 2.53G
2530MHz
133MHz
533MHz
19x
Pentium 4 2.66G
2660MHz
133MHz
533MHz
20x
Pentium 4 2.80G
2800MHz
133MHz
533MHz
21x
Celeron CPU
CPU Core Frequency
FSB Clock
System Bus
Ratio
1.8G
1800MHz
100MHz
400MHz
18x
5. Setting CPU Voltage & Frequency
3. Connecting IDE and Floppy Cables
4. JP14 Clear CMOS Jumper
Setting CPU Core Voltage
This motherboard supports CPU VID function. The CPU core voltage will be automatically
detected and the range is from 1.10V to 1.85V. It is not necessary to set CPU Core
Voltage.
Setting CPU Frequency
The CPU Frequency will be automatically detected. It is not necessary to set CPU
Frequency.
Core Frequency = CPU FSB Clock * CPU Ratio
Connect 34-pin floppy cable and 40-pin, 80-wire IDE cable to floppy connector FDC and
IDE connector. Be careful of the pin1 orientation. Wrong orientation may cause system
damage.
ATA 33/66/100/133
IDE Connector
FDD Connector
IDE 1 (Primary)
IDE 2 (Secondary)
You can clear CMOS to restore system default setting. To
clear the CMOS, follow the procedure below.
1. Turn off the system and unplug the AC power.
2. Remove ATX power cable from connector PWR2.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting pin 1 & pin 2.
5. Connect ATX power cable back to connector PWR2.
Tip:
When should I Clear CMOS?
1. Boot fail because of
overclocking…
2. Forget password…
3. Troubleshooting…
1
1
Normal Operation
(default)
Clear CMOS
