Other Installation For Your Reference; Setting Cpu Voltage And Frequency - AOpen i945Ga-PLF User Manual

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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. It's not necessary to set CPU core voltage.
Setting CPU Frequency
This motherboard is CPU jumper-less design; you can set CPU frequency by 1MHz
stepping CPU Overclocking in the BIOS. CPU Core Frequency = CPU FSB clock
x CPU Ratio. However, all CPU now sold in market belong to "Fixed Multiplier".
That means users can not adjust the CPU Ratio but change CPU FSB clock to
achieve overclocking only.
BIOS Setup > Frequency / Voltage Control > CPU Speed Setup
(Users will do the overclocking at their own risk!!)
CPU Ratio
CPU FSB
(Adjustment manually)
Processor
Processor
Number
Frequency
Extreme Edition Processor
-
3.73G
8 Series
840
3.20G
830
3.00G
820
2.80G
6 Series
670
3.80G
660
3.60G
650
3.40G
640
3.20G
630
3.00G
5 Series
570
3.80G
560
3.60G
550
3.40G
540
3.20G
530
3.00G
520
2.80G
3 Series
355
3.33G
350
3.20G
345
3.06G
340
2.93G
335
2.80G
330
2.66G
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.
8x, 10x... 24x, 25x, 26x, 27x, 28x
FSB = 100MHz-250MHz by 1MHz Stepping CPU Overclocking
FSB
1066MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
800MHz
533MHz
533MHz
533MHz
533MHz
533MHz
533MHz
CPU
Cache
Ratio
14x
2MB L2
16x
2 x 1MB L2
15x
2 x 1MB L2
14x
2 x 1MB L2
19x
2MB L2
18x
2MB L2
17x
2MB L2
16x
2MB L2
15x
2MB L2
19x
1MB L2
18x
1MB L2
17x
1MB L2
16x
1MB L2
15x
1MB L2
14x
1MB L2
25x
256K L2
24x
256K L2
23x
256K L2
22x
256K L2
21x
256K L2
20x
256K L2
18
Warning:
Intel 945G / 945P
chipset support
maximum
1066MHz
(266MHz*4)
system; higher
clock setting may
cause serious
system damage.
Note: Some
CPU fans do not
have sensor pin
so that they can't
support fan
monitoring.

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