The 845D-AV MAINBOARD
Ver 3.x
Page 21
2.9.1. JP1: Keyboard/Mouse Power On
Type: 3 pin
Default: Pin 1 and Pin 2 Short
This jumper allows you to Power On your system using your mouse or key-
board. If you short Pin 1 and Pin 2 then the “Keyboard/Mouse Power On”
function will be disabled. If Pin 2 and Pin 3 are short then the “Keyboard/
Mouse Power On” function will be enabled. If you choose to enable this op-
tion then you need to enable the POWER ON field in the Integrated Periph-
erals Menu of the BIOS setup.
2.9.2. JP2: CPU FSB Clock Selection
Type: 3 pin
Default: Pin 1 and Pin 2 short
This jumper allows you to select the CPU FSB Clock speed. If Pin 1 and Pin 2
are left in the default settings (pin 1 and pin 2 short) then the mainboard will
automatically detect the FSB Clock speed. If Pin 2 and Pin 3 are short then the
FSB will be forced to be 400 MHz. If all the pins are left open then the FSB will
be forced to be 533MHz.
Hardware Installation
Jumpers are built on the mainboard to allow the user flexibility to configure the
mainboard settings to meet their specific requirements. When there is no
jumper cap inserted into the jumper it is called “OPEN.” When a cap is inserted
into the jumper it is known as a “SHORT.” Below is an example of a short set-
ting on a jumper.
.&#"+!
Pins
Frequency
Pin 1 and Pin 2 Short
Auto Detect FSB Clock Speed
Pin 2 and Pin 3 Short
400MHz
OPEN
533MHZ
SHORT PIN 1/PIN 2 PIN2/PIN 3
-6?
-6?
Three Pin Jumpers
Open Short
Two Pin Jumpers
