Other Installation For Your Reference; Setting Cpu Voltage And Frequency - AOpen i855GMEm-LFS Manual

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
CPU FSB
(Adjustment manually)
Processor
Number
Pentium M 755
Pentium M 745
Pentium M 735
Pentium M 725
Pentium M 715
Pentium M 705
Pentium M 738
Pentium M 718
Pentium M 733
Pentium M 723
Pentium M 713
Celeron M 340
Celeron M 330
Celeron M 320
Celeron M 310
Celeron M 353
Celeron M 333
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.
Warning: Intel 855GME chipset support maximum 400MHz (100MHz*4) system
bus; higher clock setting may cause serious system damage.
4x, 7x... 17x, 18x, 20x
FSB = 100MHz - 400MHz by 1MHz
Stepping CPU Overclocking
Clock
Architecture
Speed
90nm 2000MHz
90nm 1800MHz
90nm 1700MHz
90nm 1600MHz
90nm 1500MHz
130nm 1500MHz
90nm 1400MHz
130nm 1300MHz
90nm 1100MHz
90nm 1000MHz
130nm 1100MHz
130nm 1500MHz
130nm 1400MHz
130nm 1300MHz
130nm 1200MHz
90nm 900MHz
130nm 900MHz
Front
Side Bus
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
400MHz
19
Cache Ratio
2MB L2 20x
2MB L2 18x
2MB L2 17x
2MB L2 16x
2MB L2 15x
1MB L2 15x
2MB L2 14x
1MB L2 13x
2MB L2 11x
2MB L2 10x
1MB L2 11x
512KB L2 15x
512KB L2 14x
512KB L2 13x
512KB L2 12x
512KB L2 9x
512KB L2 9x