Setting Jumper Switches - ECS K7AMA User Manual

Setting Jumper Switches

Jumpers are sets of pins which can be connected together with
jumper caps. The jumper caps change the way the mainboard
operates by changing the electronic circuits on the mainboard. If a
jumper cap connects two pins, we say the pins are SHORT. If a
jumper cap is removed from two pins, the pins are OPEN.
JP6
1
1
JP5
JP2A
1
Jumper J5~J14: SDRAM Type Selector
The ten jumpers all consist of eight sets of 2-pin jumpers. Use
these jumpers to select the SDRAM type for the system memory.
Function
DDR DIMM socket
SDRAM DIMM socket
Jumper JP1: RAM Voltage Selector
Use this 2-pin jumper to select the voltage for the installed
SDRAM module.
Function
3.3V for SDRAM
2.5V for DDR
Jumper JP2: Codec Selector
Use this jumper to select the onboard audio codec or Audio
Modem Riser (AMR) slot.
Function
Primary codec onboard
Primary codec on AMR slot
Jumper Setting
Short all Pins 1-2
Open all Pins 1-2
Jumper Setting
Short Pins 1-2
Open Pins 1-2
Jumper Setting
Short Pins 1-2
Open Pins 1-2
11
JP3
1
JP2
JP1