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System Frequency Configuration (JP7)
AV18 provides jumper JP7 to set auto configure front side bus at 66MHz,
100MHz and 133MHz. Inserting mini jumpers Pin 5-6 & 7-8 on JP7 as
below to identify automatically the FSB speed.
When the FSB auto config function is enabled, the user may still adjust CPU
Host clock on each FSB from Frequency/Voltage Control of BIOS Setup
program.
For experienced users, AV18 mainboard provides an alternative hardware
configure function to adjust front side bus manually. Please insert jumper
caps perperly on JP7 and set CPU Host/PCI Clock in Frequency/Voltage
Control of BIOS Setup program.
A4
Default
(Auto Configure)
Manual
2
4
6
8
1
3
5
7
2
4
6
8
1
3
5
7
System Clock
1-2
3-4
5-6
7-8
66 MHz
ON
ON
OFF
OFF
100 MHz
ON
OFF
OFF
OFF
133 MHz
OFF
OFF
OFF
OFF
AUTO
OFF
OFF
ON
ON
JP7
2
4
6
8
1
3
5
7
