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Emachine t2742 I also have a wiring problem!

I inheired a t2742 with the wires to the front panel not connected. I saw an diagram you made for somone . I just found this site today and signed up my expertise is 41yrs gen. contractor. now I'm a dis. veteran trying to learn something, I would appreciate any advice thanks

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  • birm Jan 23, 2009

    would you happen to know if this will work for a emachines t6522?

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Gtater,
It's ironic that you ask me this question today-- i am just now carrying in another eMachine computer to fix. Anyway, unfortunately I do not have one that is the same model as yours (T2742). However, I did some quick research and found that yours has the same exact motherboard as the T2898 which I made the diagram for!

The following eMachine models share the same motherboard (and thus the same front panel layout):
T2742 T2796 T2798 T2824 T2885 D2823 T2862 T2896 T2898 T2958

emachine t2742 I also have a wiring problem! - 284ecac.png

For further reference, I would like to share this diagram for the eMachines T6544 in case someone else may need this model. This is the computer I just carried in... might as well share.
ccd6456.png
By the way, the power switch doesn't need to be oriented any particular way (positive and negative), which is why the switches are not labeled as + or -. Switches can be wired either way and they will work the same.

Hope this helps.

Posted on Jan 03, 2009

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Need circuit diagram for HP m8100 GC673AA


HP Support > Pavilion Media Center M8100n Desktop PC > Main Support page,

http://h10025.www1.hp.com/ewfrf/wc/product?product=3440614&lc=en&cc=us&dlc=en&lang=en&cc=us

Product information > Product specifications > Motherboard Specifications, MCP61PM-HM (Nettle2 {HP name} ),

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01077676&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3440614

The front of your computer is the Front Panel.
The area of contact pins on the motherboard, that the Main wires connect to, is the Front Panel header.
(Power On switch, Power On LED, HarDDrive activity LED, etc)

The Front Panel header is Black, rectangular in shape, and is situated in a vertical position; located in the Bottom Right corner of the motherboard. (Next to the mounting hole)

It is a standard 9-pin HP Front Panel header,

http://h30434.www3.hp.com/t5/Desktop-Hardware/Getting-a-new-case-i-need-Front-Panel-pinout/td-p/842897

Scroll down to the 9-pin Front Panel header photo, and pinout.

The 4-pin side is the EVEN side. Pins 2, 4, 6, and 8. There is NO Pin 10.
The 5-pin side is the ODD side. Pins 1, 3, 5, 7, and 9.

A) Pins 1 and 3 are for the HarDDrive activity LED. (Light Emitting Diode, so it is redundant to call it a light)

Pin 1 is for the Positive ( + ) wire.
IF the HDD LED is dim when the harddrive is active, (IN use), switch the wires around.

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

C) Pin 9 is N/C. Not Connected. Reserved for factory use, and it is +5 Volts.

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

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

Scroll the HP Support Motherboard Specification page down. Click on the + sign next to Motherboard Layout.

Left to Right on bottom edge of motherboard, Internal Connectors;

AUDIO_1 is for the audio ports on the Front Panel.
ATX_IN is where the small audio cable from the optical drive plugs in.
(CD/DVD drive)
IF TWO optical drives are used; the Main, or Primary optical drive, is connected with the small audio cable. NOT the secondary optical drive.

HD_AUDIO also connects to audio ports in the Front Panel.
May be mistaken, but don't believe SPDIF_OUT header is used.
1394A1 header is for the Firewire ports in the Front Panel (1394a)
USB 2 and USB 4 headers are for the Front Panel USB ports.
USB 1 and USB 3 should be for a Card Reader.

Need where the power cables go, and what they look like? Just post back in a Comment.

(Be SURE to FOLLOW Anti-Static Precautions)

Regards,
joecoolvette

[ Didn't think you actually wanted an actual circuit diagram. That is copyrighted by HP, and Elitegroup Computer Systems. (ECS)

Dec 03, 2012 | PC Desktops

1 Answer

No input signal from t2742 to monitor keeps going to sleep


Sounds like your video has gone out. Good thing is if it is onboard you can just add a new video card.

Feb 07, 2012 | E-Machines T2742 PC Desktop

1 Answer

Front panel wiring diagram ie power switch reset switch etc


HP Support > Compaq Presario SR5501F > Motherboard Specifications,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01237538&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&lang=en&product=3740354

The motherboard is made by ECS for HP/Compaq
ECS model number is MCP61PM-HM
HP/Compaq's name is Iris 8.

There is no wiring diagram per se to give you.
I'll have to detail the wiring connections step by step for you.
This may be a little lengthy.

On the link above you are looking at a photo of your motherboard.
There is also an illustration available.
I would like you to copy, and save them both.

Using this method you will be able to enlarge them for further clarity, of the connections to the motherboard.

Right-click on the motherboard photo. Left-click on Save Image As, in the list.
In the Save Image window that comes up, you will see the heading File name:
To the right of File name: will be c01237541.

Unless you want to search for c01237541 you may wish to do this:

Put your mouse cursor after the 1 in c01237541.
Left-click twice.
Make one space with your spacebar.

Type Compaq Presario SR5501F Mobo photo.
(Mobo stands for MOtherBOard)

You want this photo to go to your My Pictures folder.
(Windows XP. Different for Vista)
At the top of the Save Image window is the heading - Save in:
In the box to the right you should see - My Pictures

If you do Not you will have to change the destination.

Left-click on the blue down arrow to the right of the box.
In the list, left-click on - My Documents, then left-click on - My Pictures.
Now go to the bottom right of the Save Image window, and left-click on Save.

In the link, scrolling down you will see the heading - Motherboard layout
Left-click on the + sign next to Motherboard layout.
Copy and save it as you did for the motherboard photo.

In the File name: box type - Compaq Presario SR5501F Mobo Illustration.

Now all you have to do is go to your My Pictures folder (Start>My Pictures), and double-click on the photo, or illustration.
Left-click on the Zoom In icon at the bottom of the window to enlarge.
(+ sign in a magnifying glass icon)

Wiring Connections to the Motherboard:

A) Front Panel header: (Panel 1)

The Front Panel, is the plastic front of your computer where the Power On button, HarDDrive LED light, and Power On LED light is located.

The Front Panel header is the connections, or pins, on the motherboard, where the cables (Wires) go to from the Front Panel.

On the motherboard illustration it is marked as Panel 1.
(Down in the bottom right corner)

On your motherboard, Panel 1 (Front Panel header) is Black in color.
As you can see it is a rectangular block, and is placed vertically.
Has 2 columns of pins.
5 in the left column, 4 in the right column.

The Left column is numbered Odd.
Starting at the Top going down, Pins 1, 3, 5, 7, and 9

The Right column is numbered Evenly.
Starting at the top going down, Pins 2, 4, 6, and 8.

Pins 1 and 3 are for the HarDDrive LED light.
(HDD activity LED)
Pin 1 is for the Positive connection ( + )

Pins 5 and 7 are for the Reset switch.
Pin 7 is for the Positive connection. ( + )

Pin 9 is reserved, and may not be used.

Pins 2 and 4 are for the Message LED light. (LED = Light Emitting Diode)
Power On LED light.

Pins 6 and 8 are for the Power On switch.
There is No Pin 10.

If the cables (Wires) are not marked coming from the Front Panel, you will have to remove the Front Panel, and trace where they go.

You will be able to physically see where wires go to the Power On switch, Power On LED light, HarDDrive activity LED

Sep 21, 2011 | HP Compaq d530 SFF PC Desktop

2 Answers

Front panel connection


Try this : See if you can find your motherboard model number. If so, type it into Google, go to the manufacturers site and download a manual which should have the wiring diagram you require. 
Cheers.

Jan 28, 2009 | E-Machines W3400 PC Desktop

2 Answers

Can u possibly tell me where i might be able to download a schematic for an EMachine desktop computer model #T2742? It is out of warranty and was donated to our church and we need to know where to...


Hi dallasblue08,

Here's a diagram of what your looking for:

The following eMachine models share the same motherboard (and thus the same front panel layout):
T2742 T2796 T2798 T2824 T2885 D2823 T2862 T2896 T2898 T2958

284ecac.png

Hope this helps!

Mark

Jan 04, 2009 | PC Desktops

1 Answer

Front panel wiring


Hi, Maybe we can wing it if you can send an image of the motherboard closeup on the F_PANEL connections and the wires from the front panel itself, or get the specific motherboard model during POST so we can try getting URL of manual. In some instances, the front panel wires are: Green wire, power on green light +, white wire is power on green light -; Red & Black, speaker; Red & white - HDD red activity light indicator where red is HDD + & white is HDD -; Orange & white - Reset Black & White - power on Post back so we can figure things out. Good luck and kind regards.

Aug 23, 2007 | Micro Electronics PowerSpec 8250 PC...

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