my emachine wont e-display

I am having this same problem with emachine (2-3 years) All fans are coming on but monitor reads "no signal"  When I unplugged cord it reads "cord unplugged" so I am pretty sure its not the monitor.     Went to BB aka geek squad  -  they advsd could be either on board graphics no longer working or power supply.  Installed both - no luck.   Now what?  Any suggestions?   
 
 
 

[Moderator]

Borrow a vid card from someone and swap it in there...
If it works you should purchase 1...

Went to BB aka geek squad  -  they advsd could be either on board graphics no longer working or power supply.  Installed both - no luck.   Now what?  Any suggestions?   

So what exactly do you mean by this? You can't exactly swap out an on-board graphics chip, so did they stick another one in there or what?

[Moderator]

I doubt it...

Yeah, sounds like the Onboard Chipset is toast. Putting in a dedicated Video Card would check that theory.

i have already replace the graphic card.

Yeah, sounds like the Onboard Chipset is toast. Putting in a dedicated Video Card would check that theory.

There just isn't enough information to make that assumption.

i have already replace the graphic card.

So you've tried swapping out the power supply and putting in separate video card? Did you make sure the on-board video was disabled and you plugged the cable into the new video card, not the old one? (Sorry, not trying to insult your intelligence here, but it's a mistake I've seen people inadvertently make more than a few times.)

There just isn't enough information to make that assumption.
So you've tried swapping out the power supply and putting in separate video card? Did you make sure the on-board video was disabled in the BIOS and you plugged the cable into the new video card, not the old one? (Sorry, not trying to insult your intelligence here, but it's a mistake I've seen people inadvertently make more than a few times.)

I Its plugs into it in to mb
the other was a on board...
Had a friend (who is much wiser than I) look at it ... he said I did it correctly

[Moderator]

Is this a used vid card ? ?

Sounds like it's dead.

Sorry, I've just returned to notice that for some reason I quoted myself on my last post. I don't recall doing that and I do apologize.

Anyway, did you disable the on-board in the BIOS and plug the cable into the correct video card when you put in the new one?

While most motherboards will make the switch automatically when there's an external video card, some won't.

Is this a used vid card ? ?

Sounds like it's dead.

Yes  A brand new one

 

did you disable the on-board in the BIOS and plug the cable into the correct video card when you put in the new one?

While most motherboards will make the switch automatically when there's an external video card, some won't.
 The factory on one was an onboard.that on board

What is the Model # of the eMachines. I have a T5212  and have had another one as well. If you have a PCIe slot, then you don't have to go into the device manager and disable the onboard graphics. It will do it when you plug in a card. What kind of card are you using and do you still have the same power supply that came in it?

What is the Model # of the eMachines. I have a T5212

She a T6420 

do you still have the same power supply

no a brand NEW R/S one

If you have a PCIe slot, then you don't have to go into the device manager and disable the onboard graphics. It will do it when you plug in a card.

Yes it did plug into the emtpy slot on the mother board.

[Moderator]

The card may still be dead on arrival...try it in another machine.