BleepingComputer.com: Computer Starts, Screen Stays Blank

I often fix computers for employees at work, and recently had a real booger. She did not want to pay to fix it so I bought it for cheap.

Its an emachines T3107 (which is very hard to find info on)


Basically, the computer starts and fans turn, but the screen stays blank. I have tried the following.

- Tested the monitor- its fine
- tried a different monitor
- Put in a known working video card (only had onboard before)
- Tested the PSU voltages and everything checked out
- All fans spin
- Tried a different stick of RAM

I hear no beeps during startup.

Computer is less than a year old, and was working perfectly before she brought it to me.



I am about to try and reset CMOS.

Do you guys have any ideas about other stuff to try. I dont mind purchasing a new mobo but I am concerned about compatability.

I appreciate any and all help.

Update

Its not a T3107 its a W3107


and the CMOS reset (both battery removal and jumper ) unsuccesful.

when it turns on does it operate like a regular computer just with no screen without the screen
or
when you turn it wait a minute then press the shutdown button it turns off. as if it never got past the start up stage (the black an white screen where you go to setup an such)

i honestly dont know whats wrong
but i had a old computer like pre 2000 an took the processor for fun an when it started the screen stayed black. so on a wild guess your proccessor may not work.

but wait till someone that knows that there talking about come to say im wrong

This post has been edited by Test36: 10 June 2007 - 12:41 PM

Try removing everything accept the processor and see if you can get it to post
E-machines are prone to failing motherboards. If you cant get a bios beep out of it its problably dead .
Here is a replacement from Newegg.

Drawback is this motherboard doesnt offer the PCI-X slot the current board has, but e-machines wants 160.00 for a direct replacement.

Open the case, and check to make sure all of the cables are securely fastened.

Exactly what does it do, when you boot up?
Do you get the POST beep (Single beep,) indicating that the motherboard and processor pass the built in test?
Do all the fans come on, and the drive lights flash?
Does it just sit there , or does it continue like it is loading windows, with drives flashing etc, just no video?

If no lights at all, probably power supply.
If lights flash and fans spin, but no beep and then it just clicks off, or sits there with no drive activity, then probably processor, or maybe motherboard.
If lights flash, fans spin, single beep, and then the hard drive keeps flashing, probably dead video.

Ill try to respond to everyone's posts.

Test36:

The machine turns on, and will turn off again if I hold the power button down.


Skneakycyber:

I have removed everything except the processor and RAM. Should I take out the RAM too? I completely disconnected everything, inspected connectors, tested with a multimeter and tried again. Still nothing.

TG 1911:
I addressed that in my first post, correct? Maybe Im not giving you the right info. I hear no beeps at all. All the fans and lights come on. I used a multimeter and all voltages are correct from the PSU.

The drive bays are all functioning (when connected)

This post has been edited by docpoco: 10 June 2007 - 01:01 PM

If there was a processor or ram problem the computer would post and tell you by beeping. Also to make sure the computer can beep at you if there is no internal case or motherboard speaker make sure your speakers are plugged into the audio port. If you still get nothing IMO the board is dead

This post has been edited by Sneakycyber: 10 June 2007 - 01:04 PM

Sneakycyber, on Jun 10 2007, 01:03 PM, said:

There is a MOBO speaker. Its round and about the size of thimble. I have tried to boot 20-25 times, and not once was there a beep.

So this is how we can be sure that the problem is the MOBO and not the processor? Of course, I understand that there could be a processor issue too that I haven't been able to prove yet.

Can you find someone willing to let you borrow their proc for a few secs and plug it in to see if its the proc or mobo?

Ruling out the mobo or processor will involve (as Ryan has suggested) swapping parts. There's no readily available test equipment for processors or motherboards that won't operate.

docpoco, on Jun 10 2007, 02:22 PM, said:

negative. I dont really know anyone where I live that is into computers.

I guess Ill just by the MOBO and see what happens. Can you guys confirm that the one linked to above is the one I need. I have never put together and AMD before.