Connect wires to the motherboard

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.

Regards,
joecoolvette

Look at the pinout of the Front Panel header, of the eMachine W3400's motherboard.

The plastic front of the computer is the Front Panel.
The area of pins on the motherboard, that the cables (Wires) from the Front Panel connect to,
is the Front Panel header.

The motherboard for an eMachines W3400 desktop computer is an MSI ms-7145
(Micro Star International)

Orient the motherboard in your view so that we are both looking at it the same way.
Processor to the Top, Ram Memory slots to the Right, white PCI slots (3) to the Bottom.

JFP1 is the Front Panel header.
(Junction Front Panel 1)

JFP1 is on the Bottom Right corner. There are two columns of pins arranged vertically.
(The JFP1 header runs parallel to the Right side of the motherboard)

The Left side column of the JFP1 header is numbered Odd.
Starting at the Top and going Down, the pins are numbered;
1, 3, 5, 7, and 9

The Right side column is numbered Even.
Starting at the Top and going Down, the pins are numbered:
2, 4, 6, and 8.
There is NO Pin 10

A) Pins 1 and 3 are for the HarDDrive Activity LED light. (HDD)
If the LED light is dim will operating switch the wires around

B) Pins 5 and 7 are for the Reset switch. (Reset button)
> IF Used

C) Pin 9 is Not used. (NC. No Connection)

D) Pins 2 and 4 are for the Power On LED light (If dim switch the wires around)

E) Pins 6 and 8 are for the Power On switch. (Power On button)

Trace the wires back to the Power On switch. Even if it means temporarily removing part of the Front Panel to see.

Same with the LED lights.
See which wires go to the Power On LED, and HDD Activity LED. (Harddrive Activity LED)

Follow the 3 wires, and tell me where they go to on the Front Panel.
USB port?
Memory Card Reader?
Firewire port? (a1394)

micha219, the eMachines W2925 desktop computer uses an FIC motherboard.
First International Computer { Inc }
The Model Number of the FIC motherboard is VC37.
FIC VC37.

Disregard the following if you are aware:
The plastic front of your computer is the Front Panel.
The area on the Motherboard that the cables (Wires) from the Front Panel connect to, is the Front Panel header.

Processor to the Top, Ram Memory slots to the Right, the Front panel header is in the Bottom Right corner.

It is a rectangular shape with two columns of pins.
The length goes up, and down on the motherboard.

The pins on the Right side of the Front Panel header are numbered Odd.
The pins on the Left side of the Front Panel header are numbered Even.

There are 4 pins on the Left side.
There are 5 pins on the Right side.

Starting at the Bottom on the Right side going Up;
Pins 1, 3, 5, 7, and 9.

Starting at the Bottom on the Left side going Up;
Pins 2, 4, 6, and 8.

A) Pins 2 and 4 are for the Power On LED light.
(If after connecting the LED light is dim, reverse the wires)

B) Pins 6 and 8 are for the Power On switch. (Power On button)

C) Pins 1 and 3 are for the HarDDrive Activity LED light.

D) Pins 5 and 7 are for the Reset switch. (Reset button. IF used)

Pin 9 is NC. Not connected

Here is a link for the manual for your au31 motherboard. The diagram explaining the front panel headers is on page 12.

http://www.lurkhere.com/~nicefiles/AU31_manual.pdf

The manual for your computer is available from emachines, p.168 shows the info you need (replacing the front I/O panel)
http://downloads.emachines.com/userguides/8511279_eM_NG3_chassis_HW_ref_en.pdf

The good news is that you can't harm the computer by connecting the wires wrong and the bad news is they just won't work the way they are supposed too if not connected properly. The LED's must have the correct polarity to work.
In general, if you look real close (as in magnifying glass and flash light) you will see the ID for each set of pins is printed on the motherboard (pwr,rst,HDD,pwr sw,speaker) Just match what it says on the motherboard to what it says on the wires. Don't worry if you get the polarity wrong. If a light doesn't work just swap the two wires. The colored wires should be positve (+), though. The reset (rst) and power switch (pwr sw) wires don't require polarity.
These instructions are for most computers in general, YMMV.

Emachines are bad for having failed power supplies and motherboards. Test your power supply, watch this video.
http://www.metacafe.com/watch/729606/how_to_test_your_computers_power_supply_psu/

Look in the manual there is a diagram and pin connections for each wire.

Most likely the wires are for power, reset, and hard disk light. Touch one pair together momentarily, if your compter comes on then connect those wires to the power button. After the computer is on, connect the other two pair to the hard disk light one pair at a time until you see the light activate when the hard disk is running. Then connect the remaining pair to your reset button.

For the usb connectors you can follow the diagram above:


For the rest of the connectors I need to know the model number of your motherboard

A quick google determined your emachines model w2040 is equipped with FIC motherboard AM37. Download the manual from
http://www.fic.com.tw/support/motherboard/motherboard.aspx?model_id=107
You'll find the pinout info for your wiring on page 13.
Most motherboards also have the pinouts silkscreened onto the board itself.