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Wiring diagram for emachines w3400 trying to wire new power switch to the motherboard

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Http://www.fixya.com/uploads/images/284ECAC.png check that out...

Posted on Jul 08, 2010

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Posted on Jan 02, 2017

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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

I have a T5026 EMachine won't power up. Green light on motherboard is on , could it be the switch , tried putting a new power supply box in it.


to see if the power swithc is the problem-

first, try to isolate the wire that connects the power switch to the motherboard. once you have deternined where the power switch plugs, then remove the wires from the motherboard leads and try to short the leads by connecting them with a metal device like a screwdriver tip. if the switch is broken, it will boot when shorted with the screwdriver. if it still will not boot, then you probably need either a new motherboard or a new cpu.

Nov 06, 2010 | E-Machines Emachine T5026 power supply **...

1 Answer

I NEED TO KNOW HOW TO CONNECT THE POWER SUPPLY FOR AN EMACHINES T1120 COMPUTER. CANNOT FIND A SCHEMATICS DIAGRAM ANYWHERE.


After reading an article about Emachines awhile back, I found out the reason you can't find the schematic- it isn't available, as some motherboards are made specifically for Emachines and therefore not distributed, as they might normally be, but again, others are, but you have to identify them and go through another source to get them- Emachines, appartantly, will not supply them. All is not lost, however...all motherboards have, basically, the same hookups and connectors for the power supplies, hard drives, etc.- they are standard. I found a web blog that explains the power switch, reset, and power led, which will help. Here it is: http://www.computing.net/answers/hardware/emachine-power-sitch-wiring/56545.html
This site will explain about the 24 pin connector from the power supply
http://www.tomshardware.com/forum/53750-7-installation-manual-rs480m-w3400-emachine-motherboard
If you google "motherboard wiring" you will find sites that have illustrations of the motherboard, and explain which connectors go to which sockets, and how to identify them.
With a little patience and determination, you should be able to hook everything up from the various blogs on the net. Hope this helps.

Apr 17, 2010 | E-Machines eMachines Desktop PC

1 Answer

I have emachine w3400 not powering . plz help


I found this right on this website, hope it works!
As for the fans, make sure your connections are tight and in the proper sockets.

Jul 09, 2009 | AMD eMachines Desktop System w/ 17'' CRT...

1 Answer

Emachine t2824 board diagram


Here is the diagram that shows you how to hook up the wires:

http://www.fixya.com/uploads/images/284ECAC.png

If you still have no video then reseat the memory one stick at a time in one slot at a time.

If you still have no video then reseat the cpu into its slot.

If still no luck try a different stick of RAM by trying it one slot a time.

Last step, unhook the power connectors from your device so the only power connectors that are connected are the power to the motherboard and the p4 connector to the motheboard. Also make sure your power supply is set to 115v. Its the red switch on the back of the power supply.

If none of this works, then the motherboard is bad. Hope this information helps.

Ben

May 24, 2009 | E-Machines EMA IMPERIAL GV (845GV) TG3...

1 Answer

Need correct MOB location for power switch on emachine W3410.


what kind of motherboard did you change..?
try to search in the internet.. just type the name of the board and including the diagram.. sample.."ASUS MOTHERBOARD POWER DIAGRAM"...

Apr 27, 2009 | Computers & Internet

1 Answer

Emachine W3400/ front panel connections


they have to be plugged in horizontally although it is possible to plug them in vertically because the pins are evenly spaced either way. they are color coded just not like you would expect for example one plug has a green wire and a white wire the green side goes to the green pin and the white side goes to a green pin with a white cross you have to look close because there are several green pins which is what threw me off do this with all three plugs

Apr 19, 2008 | AMD eMachines Desktop System w/ 17'' CRT...

2 Answers

Need wiring diagram for emachines t2200 motherboard


If you are replacing the power supply and it has 4 pin 12v conector and your motherboard doesn't, just disregard the 4 pin plug. The 20 pin conector will supply sufficient power for the processor. Many of the older motherboards did not have a separate 12v supply for the processor.

Apr 18, 2008 | E-Machines eMachines Desktop PC

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