Hello? Tap, tap on the monitor. What are you reading from? http://www.ebay.com/itm/Acer-MB-NB107-001-DA061-078L-Motherboard-eMachines-08120-2-780G-AM2-Desktop-/280919767281?pt=Motherboards&hash=item41681f78f1
The front of your computer is the Front Panel.
The area of contact pins on the motherboard, that the main wires go to from the Front panel, is the Front panel header.
Motherboard installed in computer, the Front panel header is at the Bottom/Right.
Two rows of 7 pins in a small black rectangular plastic block.http://www.ebay.com/itm/Acer-DA061-078L-Motherboard-eMachines-EL1200-X1200-AMD-780G-Socket-AM2-DDR2-/140825131784?pt=Motherboards&hash=item20c9d4fb08
TOP row of pins is numbered EVEN.
BOTTOM row of pins is numbered ODD.
Starting on the LEFT side going towards the Right, TOP row:
Pins 2, 4, 6, 8, (NO 10), 12, and 14. Again, there is NO Pin 10.
Starting on the LEFT side going towards the Right, BOTTOM row;
Pins 1, 3, 5, 7, 9, 11, and 13.
A) Pins 1 and 3 are for the HarDDrive activity LED. (Light)
Pin 1 is for the Positive ( + ) wire.
If the HDD LED is dim when the harddrive is active, switch the wires around.
2) Pins 5 and 7 are for a Reset switch, IF a Reset switch is used.
3) Pins 2 and 4 are for the Power On LED (Light)
Pin 2 is for the Positive ( + ) wire.
If the PWR LED is dim when the computer is on, switch the wires around.
4) Pins 6 and 8 are for the Power On switch.
5) The rest of the pins are N/C. Not Connected.
Don't forget to plug the 4-pin ATX +12 Volt power cable in,
(Top left corner),http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4
For additional questions please post in a Comment.