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To which of the pins do you connect the power switch from the front of the eMachines T2890 to the motherboard, along with the HDD indicator, etc.?

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On the mother board, there are pin's as you know, around the pin's there are very little word's some are abbreviated. That should label where, also some pins in the plug have a pattern make sure the pattern matches on the motherboard as well.

Posted on Jul 14, 2009

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So well meaning person disconnected the three wires going to HD LED, Power etc..now I do not know what they were connected too originally.


Look along the edge of the motherboard for markings next to a set of pins. You may see markings to indicate what pins go where. Use the old board to help examine where the pins may be located. HD will go to your HD LED - Polarity will be important here, so when you get it wired, if it does not light you will need to reverse the wires on the pins. Power will go next to a Power indication, and the last probably will be a RESET. Once you get them hooked up properly, they should work for you.

You may be able to download the manual from here: http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man

Mar 21, 2015 | eMachines W3105 Motherboard Replacement...

1 Answer

How to connect the power led,power sw,hdd led on e-machine t2240


Apologizes your question hasn't received a solution until now. I have been 'away from my desk' for a while.

The eMachines T2240 desktop pc uses an Intel D845GVSR motherboard.
So let's go to Intel Support for more information, and to the specific product download page for the Intel D845GVSR motherboard,

Intel Desktop Board D845GVSR Product Guides


On this page left-click right on the blue title -
Intel Desktop Board D845GVSR Product Guide (PDF)

This is a PDF file. The computer you are using has Adobe Reader on it which uses PDF files.
After you have downloaded the PDF file go to the top left and hover your mouse cursor on the rectangular icon. (To the left of the Up/Down arrows and Page: )

Hovering your mouse cursor over this icon will briefly reveal -
Toggle Sidebar. Click on this icon.
Now click on the icon to the immediate right of it. (Show Document Outline)

Scroll the Show Document Outline sidebar down until you see the heading - Connecting Internal Headers -
Now click on the heading immediately underneath it -
Connecting the- Front Panel Header -

[The front of your computer is the Front Panel. The area of connecting pins on the motherboard for the Front Panel is the Front Panel Header ]

On Page 11 in the Product Guide we see that S designates the Front Panel Header.
On Page 31 in the Product Guide it shows the Front Panel Header pinout. (The Front Panel Header is designated by C in the illustration)
Again on Page 32, it shows where the Front Panel cables connect to.

In case you are not able to view the Product Guide;

Viewing the motherboard installed in the computer case, the Front Panel Header lays parallel to the bottom of the motherboard, at the Bottom Right.

It is rectangular in shape and has 9 pins.
4 pins along the Top, and 5 pins along the Bottom.

The pins are numbered Even along the Top row;
Starting from the Left side of the Front Panel Header going to the right;
Pins 2, 4, 6,and 8. There is NO Pin 10.

The pins are numbered Odd along the Bottom row;
Starting from the Left going to the right;
Pins 1, 3, 5, 7, and 9.

A) Pins 1 and 3 are for the Harddrive Activity LED.
Pin 1 is for the Positive ( + ) wire. Pin 3 for the Ground wire.
In case the HDD LED is dim when the HarDDrive is active, switch the wires around. (Computer off and Anti-Static Precautions used)

B) Pins 5 and 7 are for the Reset switch, IF a Reset switch is used.
Pin 5 is for the Ground wire.

C) Pin 9 is for 5 volt ( + ) power. Not Used.
(Usually the motherboard manufacturer uses this pin to test the motherboard)

D) Pins 2 and 4 are for the Power On LED.
-> Believe Pin 2 is for the Positive ( + ) wire.
If PWR LED is dim when computer is on, switch the wires around.

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

There is No Pin 10.

For additional questions please post in a Comment.

Regards,
joecoolvette


May 13, 2014 | E-Machines Computers & Internet

1 Answer

Motherboard diagram Acer eMachine MB DA061/078L


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

Sep 06, 2012 | Computers & Internet

1 Answer

I'm working on an Emachines T3624 I took out the front panel connectors and I can't remember where the power switch connects to the motherboard. I know the general area but I don't know the exact spot....


The manual can be downloaded here, just click on "drivers and downloads" and follow it out.
http://support.gateway.com/us/en/emac/default.aspx

I was hoping to refer you to the manual to provide a diagram, but the manual does not show the front panel I/O connections, so I'll give you general instructions.

The front panel header is a set of two rows of pins. You may need a magnifying glass and flashlight to see the small print on the motherboard that identifies the pins. Look at your front panel cables and look for the same abbreviations on the circuit board. You should see "pw sw" (power switch), "rst" (reset), HDD (hard drive activity indicator LED), and "pw" (indicator LED that shows that the computer is powered up. There should also be speaker.

Just match the cables to the pins on the motherboard. Polarity ( + or - ) is only important for the LED's ( pw and HDD ) Don't worry, if you connect them wrong, they just won't work, just swap wires.

Apr 29, 2011 | E-Machines T3624 PC Desktop

1 Answer

How to hook up the face plate of a emachine w3400 Wich includes 3 wires 1 power butten and 2 led lights


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)

Nov 27, 2010 | AMD eMachines Desktop System w/ 17'' CRT...

1 Answer

Where do i plug in the power switch in the mother board


The eMachines T5274 uses an ECS 945GCT-M3 motherboard.

This is ECS Support, and the download page for the motherboard manual,

http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=719&CategoryID=1&MenuID=16&LanID=0

To the right of the Download Site heading, (At the bottom), left-click on the country nearest yours.

This is a PDF file download. Takes a few seconds to see the first page come up, and additional time for the file to fully download.

After the file has fully downloaded, go to Page 11.
(The PDF file page number box at the top, next to the blue Down Arrow, will show 11)

In the motherboard photo shown, the number 12 points to Panel1.

This is the Front Panel header.
(The Front Panel is the plastic front of your computer. This particular connector is referred to as a Header)

Barring you cannot download the motherboard manual, I will explain in detail as I go along.

Orient the motherboard in your mind, so that we are both looking at it in the same direction.

Processor to the top, Ram Memory slots to the right, Panel1, (Front Panel header), is at the bottom Right corner, and is along the edge of the motherboard.

Page 33.
There are 2 rows of pins. One row along the top, one row along the bottom.

4 pins along the top, 5 pins along the bottom.

The Bottom row of pins are numbered Odd.
The numbering starts from the Left side of the motherboard, and goes towards the Right.

The Top row of pins are numbered Evenly.
Numbering starts from the Left side of the motherboard, and goes towards the Right.

Top row numbering of pins, starting from the Left side, going towards the Right,
2, 4, 6, 8, and 10. There is No pin 10. Just a flat spot.

Bottom row numbering of pins, starting from the Left side, going towards the Right,
1, 3, 5, 7, and 9

Page 33.

A) Pins 1 and 3 are for the HarDDrive activity LED light.

Hard Disk LED (+) The Positive wire of the HDD LED light goes to Pin 1.
The Negative wire of the HDD LED light goes to Pin 3.
More than likely if the wires are marked, only the Positive ( + ) wire will be marked. Usually with a little tag that has + symbol on it.

B) Pins 5 and 7 are for the Reset switch.
IF, a reset switch is offered on your eMachines.

Pin 7 is for the Positive wire. (+)
(It isn't necessary to have a Reset switch. It's a restart switch. Used to restart your computer, and there are many other options available)

C) Pin 9 is reserved, and not used.

D) Pins 2 and 4 are for the Power On LED light.
Pin 2 is for the Positive wire. (+)
(If the two wires are reversed, the Power On LED light will be dim)

E) Pins 6 and 8 are for the Power On switch.
Pin 6 is for the Positive wire (+)

Have any questions regarding this, post in a Comment.

Aug 13, 2010 | eMachines T5274 Desktop PC

1 Answer

T2890 video card replacement power source?


The graphics card takes its own power from the motherboard.

May 28, 2009 | Intel D845GVSR Motherboard

1 Answer

T6410 EMACHINE TRYING TO CONNECT START BUTTON


The motherboard in your computer is an MSI MS-7145, which is also called RS480M. You can download a copy of the manual here. The front panel connections are on page 2-20.

Looking at the header JFP1, pins 1 through 9 (odd numbers) are the front row, pins 2 through 10 are the back. Pin 10 is the missing pin. The power switch connects to pins 6 and 8. The power LED connects to pins 2 and 4. The HDD LED connects to pins 1 and 3. The reset button, if used, connects to pins 5 and 7.

May 13, 2009 | E-Machines eMachines Desktop PC

1 Answer

Emachines t3830 I need the schematic for MB I umployed the wire for the push bottom without looking at the way they were plug. Now I do not know the correct aligning of the push bottom wires.


If you look at the motherboard there is usually a diagram labeled "FRONT PANEL HDR" that will tell you which pins are for: HDD LED, PWR LED, RESET, PWR ON. etc.
The chart / diagram may be a few inches away from front panel header.
the following example is from my emachine T2893 that I had opened because it won't power up.

the motherboard at the header connector labels pin #2 and with that you can figure out the other
pin numbers

example of diagram on motherboard (Confirm the pin numbers on your motherboard)


J9G1 PINS
| HD LED | 1 - 3 |
| PWR LED | 2 - 4 |
| RESET | 5 - 7 |

| PWR ON | 6 - 8 |

Hope this helps you figure which pins to hook you switch up to.

Jan 18, 2009 | E-Machines eMachines T3830 PC Desktop

1 Answer

Emachine front panel power switch


Here's the Support Link for your desktop. Look under User Guides, Hardware Reference. Also look on the motherboard for markings such as PW or PS and an indicator to where the wire goes.

Nov 23, 2008 | E-Machines T3958 (827103050974) PC Desktop

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