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911 Motherboard Jumpers

CMOS Clear Jumper (JGA1)
Jumper Position Function
1 - 2 Normal Operation
2 - 3 Clear CMOS Data

Password Clear Jumper (J16)
Jumper Position Function
Closed Normal Operation
Open Clear Password

Core/Bus Ratio Header (SW1)

Jumper 1 Jumper 2 Jumper 3 Jumper 4 Core/Bus Ratio
On
Off
On
On
2.5
On
On
Off
On
3
On
Off
Off
On
3.5
On
On
On
Off
4
On
Off
On
Off
4.5
On
On
Off
Off
5
On
Off
Off
Off
5.5
Off
On
On
On
6
Off
Off
On
On
6.5
Off
On
Off
On
7
Off
Off
Off
On
7.5
Off
On
On
Off
8

Note
If the CPU is 400MHz then the Core/Bus Ratio is 4.

Power On Mode Jumper (JP1)
Jumper Position Function
Closed
 Select Boot-up by switch (Default)
Open
 Select Immediate Boot-up/Last State