AOpen i855GMEm-LFS, Manual

Page: 19 / 68

3.3 Other Installation for Your Reference
Setting CPU Voltage and Frequency
Setting CPU Core Voltage
This motherboard supports Voltage ID (VID) function to detect CPU voltage
automatically during power-on.
Setting CPU Frequency
This motherboard is CPU jumper-less design, you can set CPU frequency through
1MHz stepping CPU Overclocking in the BIOS. CPU Core Frequency = CPU FSB
clock x CPU Ratio. However, all CPU now selling in the market belong to "Fixed
Multiplier". That means users can not adjust the CPU Ratio but only change CPU
FSB clock to achieve overclocking.
(Users do the overclocking at their own risk!!)
B
IOS Setup > Frequency / Voltage Control > CPU Bus Frequency
CPU Ratio 4x, 7x… 17x, 18x, 20x
CPU FSB
(Adjustment manually) FSB = 100MHz - 400MHz by 1MHz
Stepping CPU Overclocking
Processor
Number
Architecture
Clock
Speed
Front
Side Bus
Cache Ratio
Pentium M 755 90nm 2000MHz 400MHz 2MB L2 20x
Pentium M 745 90nm 1800MHz 400MHz 2MB L2 18x
Pentium M 735 90nm 1700MHz 400MHz 2MB L2 17x
Pentium M 725 90nm 1600MHz 400MHz 2MB L2 16x
Pentium M 715 90nm 1500MHz 400MHz 2MB L2 15x
Pentium M 705 130nm 1500MHz 400MHz 1MB L2 15x
Pentium M 738 90nm 1400MHz 400MHz 2MB L2 14x
Pentium M 718 130nm 1300MHz 400MHz 1MB L2 13x
Pentium M 733 90nm 1100MHz 400MHz 2MB L2 11x
Pentium M 723 90nm 1000MHz 400MHz 2MB L2 10x
Pentium M 713 130nm 1100MHz 400MHz 1MB L2 11x
Celeron M 340 130nm 1500MHz 400MHz 512KB L2 15x
Celeron M 330 130nm 1400MHz 400MHz 512KB L2 14x
Celeron M 320 130nm 1300MHz 400MHz 512KB L2 13x
Celeron M 310 130nm 1200MHz 400MHz 512KB L2 12x
Celeron M 353 90nm 900MHz 400MHz 512KB L2 9x
Celeron M 333 130nm 900MHz 400MHz 512KB L2 9x
Note: With CPU speed changing rapidly, there might be faster CPU on the market by the time
you received this installation guide. This table is kindly for your references only.
19
Warning: Intel 855GME chipset support maximum 400MHz (100MHz*4) system
bus; higher clock setting may cause serious system damage.