Question about E-Machines T2893 PC Desktop

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Front Power switch wire is broken

My emachines T2893 front on/off button - wire broke and I was unable to solder it back together. Got a new generic switch at Radio Shack - 3A at 125VAC, 1.5A at 250 VAC. Will this switch work? If not, how can I find the spec or schematic to give the correct switch?

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  • 413 Answers

As long as the rating is the same as the power supply you should have no problems
Make sure to check your wiring and all the connections are correct or you could have one expensive paper weight.

Posted on Dec 29, 2008

  • Dan rogers
    Dan rogers Dec 29, 2008

    As long as the rating is the same as the power supply you should have no problems

    Make sure to check your wiring and all the connections are correct or you could have one expensive paper weight.

  • Dan rogers
    Dan rogers Dec 29, 2008

    As long as the rating is the same as the power supply you should have no problems

    Make sure to check your wiring and all the connections are correct or you could have one expensive paper weight.

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Passenger side rear window will not goup,I have had both front wiring harness replaced,pulled rubber boot back it looks like and orange and gray wire are broke,cost me 200.00+ on each front window part was...


If you have already identified the broken wire, get a piece of shrink tubing and slide it on one end, put the wire ends back together and solder them. slide the shrink tube over the repair and heat it up (usually a lighter works fine just don't melt it). After it's working again, send me the extra money
(only kidding) If you aren't good at soldering, practice on another piece of scrap wire before you try it.

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Where can i place in my motherboard power & reset jumper, i need diagram of my motherboard


For any desktop computer using Windows:

The main power cable coming from the Power Supply, is an ATX main power cable.

It is the power cable with the longest connector.
It will either be a 20-pin, or a 24-pin connector.

IF, this is directly towards an eMachine T2893 Desktop PC, it uses an Intel D845GVSR motherboard.

Also note that eMachines Support > Specifications, states the T2893 uses an Intel 845GV motherboard chipset,
( Chipset ),

http://support.gateway.com/emachines/PC/eMac/4176/4176sp5.shtml

Info on the Intel 845GV chipset,

http://en.wikipedia.org/wiki/List_of_intel_chipsets#Pentium_4_chipsets

This is the download link for the motherboard manual, for the Intel D845GVSR motherboard,

http://www.intel.com/support/motherboards/desktop/d845gvsr/sb/cs-008823.htm

Scroll down, and click on the blue -
Intel Desktop Board D845GVSR Product Guide (PDF)

The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click it may take up to 30 seconds before the first page comes up.

{ 10 seconds, fully loaded. Adobe Reader 10 (X), and medium speed DSL connection }

The plastic front of your desktop computer is the Front Panel.

The rectangular area of pins on the motherboard, that the wires from the Front Panel go to, is the Front Panel header. (Sometimes abbreviated FP1 on the motherboard )

Looking at your motherboard as it's installed in the computer case, the Processor is to the Top, Ram Memory to the Right, and the long white PCI slots to the Bottom.

The Front Panel header is on the Bottom of the motherboard, under the CMOS round battery.

There are two rows of pins.
4 across the top, and 5 across the bottom.
{ Top row 4 pins, space
Bottom row 5 pins }

The Top row of pins are numbered Even.
The Bottom row of pins are numbered Odd.

Starting from the Left side of the header going to the right, on the Top row;
{ Left side of the motherboard going towards the right side of the motherboard }

Pins 2, 4, 6, and 8. There is No pin 10.

Starting from the Left side of the header going to the right, on the Bottom row;
Pins 1, 3, 5, 7, and 9.

A) Pins 1 and 3 are for the HarDDrive activity LED light.
Pin 1 is for the Positive ( + ) wire.
If the harddrive LED light is dim when operating, switch the wires around.

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

C) Pin 9 is for 5 Volt (DC) power. Not used.

D) Pins 2 and 4 are for the Power On LED light.

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

To the right, and up, is the BIOS Configuration Jumper Block.
3 pins.
Pin 1 is towards the CMOS battery.

Normal default is the jumper is on Pins 1 and 2.
To configure it is placed on Pins 2 and 3, BUT in a proper method.
Read on Page 37.
(37 in page number box at top of PDF file )

For additional questions post in a Comment.

Regards,
joecoolvette

Nov 24, 2010 | E-Machines T2893 PC Desktop

1 Answer

Front power switch broken. Bezel won't come off easily. Thought we could just get a switch and install on the back but don't know which of the colored pairs of wires go to the original switch in the...


I would suggest this generic Power On switch,

1) http://www.directron.com/atxswitch.html,

and the Red, and Black twisted pair of wires go to the Power On switch.

Your statement of ,"....don't know which of the colored pairs of wires go.....", leads me to believe you may have all of the Front Panel wires disconnected.

How about information as to where ALL the Front Panel wires go?
(Provided I have correctly interpreted your statement)

Back in the time that the eMachines T2542 was made, TriGem was the motherboard manufacturer.

The Model Name of the motherboard is Imperial, and the Model Number of the motherboard, could have been one of four variations offered.

Model Name: Imperial
Model numbers could be G, GL, GV, or GLVE
(Imperial G, Imperial GL, Imperial GV, or Imperial GLVE)

ALL four variations used the same Front Panel header.
(The connector on the motherboard the Front Panel wires connect to, is named the Front Panel header)

I would like you to view this page,

http://www.e4allupgraders.info/dir1/ecase/support/front_panel_header_support.shtml

Scroll down to the heading -
Trigem Imperial Front Panel Header Pinout.

A) Pins 1, 2, and 3 are for the Power On LED light.

B) Pins 5 and 6 are for the HarDDrive activity LED light.
(Pin 4 is not used. NC. No Connection)

C) Pins 7 and 8 are for the Power On switch

D) I wouldn't connect any wires to Pins 9 and 10, nor Pins 11 and 12

E) Pins 14 and 15 are for the Reset switch. (The button you press to restart your computer.
If the T2542 doesn't have a Reset switch, don't worry about it. There are many other ways to restart your computer)

F) Pins 17 18, and 20 are for an internal speaker.
This speaker is used for BIOS Beep Codes.

In the chart to the right, you will see GRD used many times.
GRD stands for Ground.
ANY Black wire in the twisted pair of wires, is a Ground wire.

Most of the eMachines I have worked on, use a Red, and Black pair of twisted wires for the Power On switch.
I could be mistaken on the T2542.

Best method, is to follow the color code of the wires that come from Pins 7 and 8, and be sure.

Aug 17, 2010 | E-Machines T2542 PC Desktop

3 Answers

T2893 desktop did not power on when I hit the power button


If you can find someone that has the same model, that is the best way to make sure it fits. Some other motherboards will fit, but you may have to do some work to get them to fit. The best way would be to try to do some research on your particular motherboard (mobo) on the internet. Sometimes it will have a manufacture’s name and model on it, try googling it and see what type it says it is (ATX, mini-ATX, AT, etc). One problem you may have is the power button connectors may not be compatible with your new motherboard if you get something besides an emachine mobo. If you are good at electronics it will not be much of a problem for you.

Unless you get an exact e-machines mobo, your OS will most likely not work at startup. Windows XP does not like wholesale changes like a mobo. When it sees that a major configuration change has happened it sometimes freaks out. Sometimes it will just ask you to re-activate windows other times it gets stuck in a reboot loop. Hard rive and CD rom should still work, provide you do not get too new of a mobo. Older HDD and CD drives were IDE connectors, newer ones have SATA connectors. Unless your mobo and power supply unit (PSU) have the correct connectors you will not be able to use them.

To the poster who asked if it could be anything else besides bad mobo. Yes it can occasionally be a bad power supply unit (PSU). A bad PSU does not necessarily mean no power, just not enough power to run the computer. You can try swapping it out with another one of equal or greater output watts. You can try removing the power connectors from the drives and then remove the memory and see if it changes the boot up procedure of your machine. More beeps, different beeps, no beeps, etc. Add one component back at a time to test. Make sure you get the same results and not just a one-time fluke start up. If a memory stick is bad, it usually is bad. A power supply or mobo can be flaky and fail some times and not others.

Jan 25, 2009 | E-Machines eMachines T3830 PC Desktop

1 Answer

I'm pulling my hair out...


Possibly .. but you could also have a bad power switch from the front panel ..

Jan 23, 2009 | E-Machines eMachines T3830 PC Desktop

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 t2542


When you say out, do you mean they are broken, or just disconnected? Most of these computers have a plug on the end of the wires to the front panel and it just plugs into the system board. If you look at the board you'll see where the front panel wires go. Sometimes it's hard to read the small type, but there are labels on the board that tell you what connector does what.

Nov 17, 2008 | E-Machines eMachines Desktop PC

1 Answer

Presario 6330us push button power switch


Hello!

If you know where the two connection came from then You can solder it vice versa because can be connected either. That is reversible connection as long as connected parallel from the motherboard. there is no problem with that just connect onto post1wireblack, post2redwire.

May this help.

best regards, Melnavz

Feb 24, 2008 | Computers & Internet

2 Answers

T2893 Motherboard Layout - Where do the power jumpers go?


go to this link for the information you need http://www.intel.com/design/motherbd/sr/sr_con.htm#IC

May 05, 2007 | E-Machines T2893 PC Desktop

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