( Data from M919 manual )

Mainboard Component Location

Mainboard Component Location

J1 Keyboard Connector

A standard five-pin female DIN keyboard connector is located at the rear of the board J1.

Keyboard Connector
Pin Description
1 Keyboard Clock
2 Keyboard Data
3 N.C.
4 Ground
5 + 5VDC

J3 Power Supply Connector

The power supply connectors are two six-pin male header connectors. Plug the dual connectors from the power directly onto the board connectors.
Most of power supply have two leads. Each lead has six wires. Two of which are black, orient the connectors, so the black wires are in the middle.

Power Supply Connectors
Pin Description Pin Description
1 Power Good 7 Ground
2 + 5V DC 8 Ground
3 + 12V DC 9 - 5V DC
4 - 12V DC 10 + 5V DC
5 Ground 11 + 5 V DC
6 Ground 12 + 5V DC

J12 Turbo Switch Connector

Attach the tucbo switch cable to this connector

Turbo Switch Connector
Setting Description
Short Normal Mode
Open Turbo Mode

J11 Reset Switch Connector

Attach the Reset switch cable to this connector

Reset Connector
Setting Description
Open Normal Mode
Short Reset System

J14 Suspend Switch Connector

Suspend Connector
Setting Description
Default Normal Mode
Toggle Force system to enter Suspend mode

J8 Keylock & Power LED Connector

J8 is a keylock connector that enables and disables the keyboard and the Power-LED on the case.

Keylock & Power LED Connector
Pin Description
1 LED Output
2 N.C.
3 Ground
4 Keylock
5 Ground

J9 Speaker Connector

Attach the system speaker to connector J9.

Speaker Connectors
Pin Description
1 Speaker Out
2 Ground
3 Ground
4 + 5V

J10 Turbo LED Connector

Turbo LED Connector
Pin Description
1 Anode(+)
2 Cathode(-), Ground

J13 Hard Disk LED Connector

Hard Disk LED Connector
Pin Description
1 Anode(+)
2 Cathode(-), Ground

JP2 Flash ROM Voltage Selector

The mainboard can uses two types of Flash ROM 5 volt and 12 volt. Set the mainboard for either type with jumper JP2.

Flash ROM Voltage Selector
Description JP2
12 volt Flash ROM short pin 1-2
5 volt Flash ROM short pin 2-3

J4 Internal / External Battery Selectors

Battery Selectors
Description J4
External Battery Pin 1 and pin 4
to connect external battery
Internal Battery Pin 2-3 short
Clear CMOS Pin 3-4 short

CPU Type Jumpers

CPU Type Jumpers