Installing Cpu & Housing Fan; Setting Cpu Voltage & Frequency - AOpen AK79G-V Easy Installation Manual

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3. Installing CPU & Housing Fan
Plug in the CPU fan cable to the 3-pin CPUFAN1 connector. If you have chassis fan, you
can also plug it on SYSFAN2 or SYSFAN3 connector.
SYSFAN3 Connector
4. Connecting IDE & Floppy Connectors
Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDC connector. Be
careful of the pin1 orientation. Wrong orientation may cause system damage.
CPUFAN1 Connector
GND
+12V
SENSOR
SYSFAN2 Connector
Note: Some CPU fans do not have
sensor pin, so that they cannot
support fan monitoring.
Pin 1
FDD Connector
IDE 1
(Primary)
IDE 2
(Secondary)
5. Setting CPU Voltage & Frequency
Full-range Adjustable CPU Core Voltage
This motherboard supports CPU VID function. The CPU core voltage will be automatically
detected and the range is from 1.1V to 1.85V. 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 Setup
Core Frequency = CPU FSB Clock * CPU Ratio
CPU Ratio
From 5.5x to 16x step 0.5x
CPU FSB (Adjustment
FSB = 100MHz-200MHz by 1MHz Stepping CPU Overclocking
manually)
CPU
CPU Core Frequency
Athlon 1G
1GHz
Athlon 1.1G
1.1GHz
Athlon 1.2G
1.2GHz
Athlon 1.3G
1.3GHz
Athlon 1G
1GHz
Athlon 1.13G
1.13GHz
Athlon 1.2G
1.2GHz
Athlon 1.33G
1.33GHz
Athlon 1.4G
1.4GHz
AthlonXP 1500+
1.3GHz
AthlonXP 1600+
1.4GHz
AthlonXP 1700+
1.46GHz
AthlonXP 1800+
1.53GHz
AthlonXP 1900+
1.6GHz
AthlonXP 2000+
1.667GHz
AthlonXP 2100+
1.73GHz
AthlonXP 2200+
1.80GHz
AthlonXP 2400+
2.0GHz
AthlonXP 2600+
2.13GHz
AthlonXP 2700+
2.16GHz
AthlonXP 2800+
2.25GHz
Duron 800
800MHz
Duron 850
850MHz
Duron 900
900MHz
Duron 950
950MHz
Duron 1G
1GHz
Duron 1.1G
1.1GHz
Note:
With CPU speed changing rapidly, there might be fastest CPU on the
market by the time you received this installation guide. This table is kindly for
your references only.
Warning: nForce2-ST/G/GT chipsets support 166MHz FSB (with performance reaches
maximum 333MHz EV6 system bus) and 66MHz AGP clock, higher clock setting may cause
serious system damage.
Tip: If your system hangs or fails to boot because of overclocking, simply use
<Home> key to restore the default setting or you can wait the AOpen "Watch Dog
Timer" reset the system in five seconds and system will auto-detect hardware again.
EV6 Bus Clock
Ratio
200MHz
10.0x
200MHz
11.0x
Note: You have to
200MHz
12.0x
200MHz
13.0x
adjust CPU FSB in
266MHz
7.5x
266MHz
8.5x
BIOS after installing
266MHz
9.0x
CPU; otherwise CPU
266MHz
10.0x
266MHz
10.5x
will
run
266MHz
10.0x
speed of CPU FSB
266MHz
10.5x
266MHz
11.0x
value.
266MHz
11.5x
266MHz
12.0x
266MHz
12.5x
266MHz
13x
266MHz
13.5x
266MHz
15x
266MHz
16x
333MHz
13x
333MHz
13.5x
200MHz
8.0x
200MHz
8.5x
200MHz
9.0x
200MHz
9.5x
200MHz
10.0x
200MHz
11.0x
at
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