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Solve : Mother Board Problem (Not completing POST)?

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Hello, I have a serious problem, my motherboard isn't WORKING. It still turns on, the FANS run, hard drives starts, but nothing appears on the screen. I'm posting this message from the same computer, but with a different motherboard (A really old one), I know the motherboard cant be fried, or it wouldn't start up at all, I'm not really the Mr.Know it all when it comes to computer hardware, but i do know the basics (If you call CHANGING motherboards basic), I think the problem all together here is, it wont POST. Please help!

*Note*
I don't see the motherboard manufacturer on the board, it came with my computer, my computer is a Emachines. I will be glad to give any more information if needed, but i think this is enough.1.  Computer Specs.
     o  Desktop or Laptop?
     o  eMachines Model Number?
     o  What processor are you putting in that motherboard?
     o  What type of memory are you using?  How much and how many modules?
     o  Video card size (memory), make, and model; if not onboard video.
     o  Approximate age of the computer

2.  Is it the "original" motherboard for that eMachine model number?  Did the "motherboard" ever work in that computer?  Did it stop working before or after you took it out of the machine?

3.  Beep code(s):
     o  Do you recieve an audio beep code when you attempt to boot the troublesome motherboard?
     o  If yes, is it a single "short" beep?  Or a different beep sequence?

4.  Display.  Absolutely no display at all?  What is the sequence and final status of the display power LED.  (green or amber color, steady or blinking).

5.  Startup Light Sequence.
     o  Power LED front of case goes on and stays on?
     o  Keyboard LEDs flash (Num Lock, Caps Lock, Scroll Lock)?
     o  CD/DVD Drive LED flashes
     o  Floppy Drive LED flashes
     o  Hard Drive activity LED flashes
    Quote

I know the motherboard cant be fried, or it wouldn't start up at all

Does not follow.

An ESD board can certainertainly run an not start up anything in the HD even thught its running.  Yes the board is important to get it to post.  What all is really needed to get or replace the board is what model it is.  I hope that XP isnt installed on this drive for it looks for the hardware changes.  My approach to this problem would be to get all available "motherboard" documentation and/or eMachine documentation off the internet for the machine in question.  Then I would try to verify the components and CMOS setup values are appropriate for the motherboard (Yeah, I know... how can you check CMOS values without a display?  I think if push comes to shove you can reset them to factory defaults).

Another useful approach is to strip the motherboard down to its essential components and try to start the machine.

    o  Power Supply
    o  Motherboard
    o  CPU (must be compatible with motherboard - clock/bus speeds?)
    o  Memory (one module only)
    o  Video Card

Many machines give a single short "beep" upon a successful POST.  For any other beep pattern you should try to determine what the beep error codes are for that machine/motherboard combination.

Some people test the motherboard outside of the case.  I've never done that so I'm not sure what precautions you need to take, but it would be easier to work on and you wouldn't have to worry about shorting the motherboard to the case (unless it's a metal workbench!).

You could also test without one of the required components (CPU, memory, video card) to see if you can force the correct beep code for that error condition.  Hmmm...  I GUESS this would require connection to the system speaker (which might be on the case?).

Computer BIOS information
Computer never stops beeping or has solid beep
Post troubleshooting steps

In the land of the blind, the one-eyed man is King.Check and see if you have any impregnated(Bulging) capacitors or bursted(Having some yellowish wax type formation on top) ones or possibly BROKEN off ones.
this is a problems I've come across this a lot and the solution is a new motherboard, but only if that's the problem.No capacitors are busted. Quote from: dahlarbear on March 24, 2008, 02:39:03 AM
1.  Computer Specs.
     o  Desktop or Laptop?
     o  eMachines Model Number?
     o  What processor are you putting in that motherboard?
     o  What type of memory are you using?  How much and how many modules?
     o  Video card size (memory), make, and model; if not onboard video.
     o  Approximate age of the computer

2.  Is it the "original" motherboard for that eMachine model number?  Did the "motherboard" ever work in that computer?  Did it stop working before or after you took it out of the machine?

3.  Beep code(s):
     o  Do you recieve an audio beep code when you attempt to boot the troublesome motherboard?
     o  If yes, is it a single "short" beep?  Or a different beep sequence?

4.  Display.  Absolutely no display at all?  What is the sequence and final status of the display power LED.  (green or amber color, steady or blinking).

5.  Startup Light Sequence.
     o  Power LED front of case goes on and stays on?
     o  Keyboard LEDs flash (Num Lock, Caps Lock, Scroll Lock)?
     o  CD/DVD Drive LED flashes
     o  Floppy Drive LED flashes
     o  Hard Drive activity LED flashes
   

1.
Specs:

Type: Desktop Computer
Model: W3107
as the model
Processor: AMD Sempron 3100+
Memory: One 128 DDR stick. And one 512 DDR SDRAM stick
Video Card: nVIDIA GeForce 6100
Approximate Age: 4 years

2.
I took the original mother board out because it wasn't working, although (Should have put all this in the 1st post, sorry, I'm new) it didn't just stop working all together, it started just not wanting to boot up, had to turn it off, then off, then on. then it got worse over time, until the point to it wouldn't start at all (I did get it on once about a week ago, but it booted in the BIOS, so i had to "Sigh" restart it).

3.
No beeps, (Even after i striped it of everything BUT the power, i even took out the processor)

4.
The LED of the power display dose blink, but shouldn't that mean its not getting any signal, yet it doesn't say "No Signal"...

5.
Power LED does stay on, it doesn't make that far to POST the keyboard, CD/DVD drive doesn't blink, i have no floppy drive installed, Hard drive light does flash, "I think"

Hope this helps

Didn't realize i double posted, sorry.eMachines are notorious for weak/cheaply built PSU's...have you tried borrowing one of the same wattage or greater and tried swapping it in there ? Quote from: patio on March 26, 2008, 06:05:46 AM
eMachines are notorious for weak/cheaply built PSU's...have you tried borrowing one of the same wattage or greater and tried swapping it in there ?

The PSU works on this motherboard, so i know it does on the other, unless for some strange reason it wouldn't.still no help. Should i just give up? Quote from: CarnageX3 on March 27, 2008, 01:24:15 AM
Quote from: patio on March 26, 2008, 06:05:46 AM
eMachines are notorious for weak/cheaply built PSU's...have you tried borrowing one of the same wattage or greater and tried swapping it in there ?

The PSU works on this motherboard, so i know it does on the other, unless for some strange reason it wouldn't.
\
Borrow and try another PSU...OK, i got my friend to come over and told him to bring his PSU. so i took mine out, put his in, and it still didn't work, so had to take everything back out, and out the old working MB in. Any other ideas?This place isn't all that helpful. Quote from: CarnageX3 on March 28, 2008, 09:12:23 PM
This place isn't all that helpful.

I wouldn't say that. Many people have said the opposite. We aren't mind readers, and we cannot resurrect dead hardware. PS you did spell OK wrong.


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