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Tried to add RAM but now computer won't turn on

I have an emachine T3958 with 512MB RAM. I upgraded it and now won't turn on.

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  • kguzman_us May 26, 2009

    Originally it was pc3200 512mb ddr and we upgraded to pc2700

    2 GB ddr

  • kguzman_us May 26, 2009

    Hi,



    We upgraded to 2x1gb. We looked it up online and replaced the RAM with the recommended parts (no higher that 1gb per slot. When it did not work, I put the original memory back (512 MB) and still the computer did not turn on.



    Thank you for your help.

  • kguzman_us May 26, 2009

    Did not disconnect anything. Just took the old one and added the new ones. Now, no lights, no beeps, nothing.

  • kguzman_us May 26, 2009

    I toook the memory out and tried to turn it on... nothing. Not a beep, no lights, nothing.

  • kguzman_us May 26, 2009

    Tried that also. Nothing.

  • kguzman_us May 26, 2009

    All the connectors are plugged into the motherboard. I tried 3 outlets and nothing is happening. No sounds or lights.



    Thank you for all your help.

  • kguzman_us May 26, 2009

    There is only one prong. What is the battery for? Could that need to be replaced?

  • kguzman_us May 26, 2009

    Yes there is a piece of plastic next to it.



    We also notice a little green light on inside on the motherboard. (It is a solid green)



  • kguzman_us May 27, 2009

    We made a mistake earlier in saying that there was a piece of plastic next to it. There is only the prong holding the battery.

  • kguzman_us May 27, 2009

    The powersupply to the motherboard is very hard to remove. We are afraid we will break it if we force it.

  • Lee Hodgson
    Lee Hodgson May 11, 2010

    Hi there.
    Have you upgraded it with 2x1GB of ram or 1x2GB of ram?


  • crabbypup May 11, 2010

    did you add the right type of ram? what type did you add and waht type was originally in it?

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  • E-Machines Master
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Hi there.
Take the ram out, turn the PC on and tell me if it beeps

Posted on May 26, 2009

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  • Lee Hodgson
    Lee Hodgson May 26, 2009

    Is there any power to the machine at all? and have you checked at the back of the machine on the power supply to make sure the rocker switch is in the on position?

  • Lee Hodgson
    Lee Hodgson May 26, 2009

    take a look at the motherboard, is there any led light on that which is lit, while the side is off hit the on off button, does the CPU fan try to go round or can you safely say that the motherboard is receiving no power at all.

  • Lee Hodgson
    Lee Hodgson May 26, 2009

    If there is no power at all then chances are the PSU (power supply) has gone. Its just unfortunate that's its gone at the same time as the upgrade and they do happen.
    Taking all the other hardware out i doubt will make any difference but there is one more thing you can check on.
    Look on the motherboard near the battery for a little coloured plastic jumper like this >>>>>>>>>>>>

    Can you tell me if there is one there or is there three brass prongs?


  • Lee Hodgson
    Lee Hodgson May 26, 2009

    The battery keeps the time, date and the bios settings.
    Now, you say there is only one prong? is the a piece of plastic next to it?


  • Lee Hodgson
    Lee Hodgson May 26, 2009

    Look closely at the picture i posted, if the prong is right next to the jumper (plastic) like it is in the picture do this >>>>

    Remove the power cord from the back of the PC if you haven't already done so, put the original memory back in, then i want you to look very close at that jumper, pull it up and put it over that prong, you should see another prong at the other side if you have correctly, plug the power in and hit the on/off button, tell me what happens please

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Didn't we speak online about this a couple of days ago? You can't mix and match RAM. What you added is probably not the right config for that machine. You need to go to this link, plug in your machine information and then REPLACE, NOT ADD TO what you have.

Posted on May 26, 2009

  • 5 more comments 
  • Michael Rodriques May 26, 2009

    Did you disconnect any power cords or adapters inside the computer when you changed the memory? Is it not powering up at all, no lights, no beeps, etc?

  • Michael Rodriques May 26, 2009

    And you stated that it's not working, even with the old RAM? That indicates something other than the RAM being the issue. Let's try one more thing, to rule out the RAM issue completely. Remove the RAM and don't replace it with anything. Post here with the results of a reboot (beeps, lights, etc.)

  • Michael Rodriques May 26, 2009

    OK. Power supply has got to be the issue. Doble check that the power supply is plugged down to the board. It's going to be a fairly (about 1/2 the length of a memory chip) long connector plugging into a white socket.on the motherboard. Make sure it's connected. Remove and replace the plug on the outside of the computer (may want to try another outlet). This is all to eliminate outside issues. Barring that we need to look at other components being the issue, but it's unlikely. Try that and repost here.

  • Michael Rodriques May 26, 2009

    OK. So we've checked that the power connectors are on and tried another outlet? Sorry for the confusion, but i think our responses are getting delayed so it's a bit confusing.

  • Michael Rodriques May 26, 2009

    OK. so there are two possible solutions at this point, and fortunately one of them is fairly easy to test.

    They are;

    1 - Remove each component from the machine. That unplug data and power from the hard drive and see if the machine will boot up. After the HDD remove the video card, then sound card, etc until everything is either removed or disconnected. This will determine if it is another component that is causing the issue. My sense is that it's not another component, and that it is in fact the power supply.

    2 - If you have another machine in the house, and the voltage matches the one in the E-Machine (only output voltage matters) then you can use that to test the machine.

    It sounds incredibly coincidental that the power supply would go out on you at the same time you upgraded your memory, but it's not impossible. If you, or someone you know (the guy at Radio Shack) has an OHms meter, you could check the power supply to see if it is still sending juice to the board. Some emachines (not sure about yours) have a small green LED on the MB to indicate whether the power supply is functioning correctly. Also check the rocker on the power supply to make sure it is in the correct position (hardly ever an issue).


  • Michael Rodriques May 27, 2009

    OK. If you're seeing a green LED on the motherboard, solid and on, tehn disconnect the power supply from the motherboard and wait about 5 minutes, that light should go off. If it does, that would indicate a good power supply, and we'll need to start looking elsewhere for the solution to your issue. Post back here when you check that.

  • Michael Rodriques May 27, 2009

    Are you commenting on the connector from the power supply to the motherboard, or the power supply unit itself?

    If you're talking about the connector, then on one side of it you should see a clip, push that in while pulling the connector up.

    If you're talking about the unit, make sure you remove the 3 or 4 screws on the back of it that will allow you to slide the power unit around and then work the unit out of the case.


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None of the suggested solutions are correct. your pc runs at 400mhz fsb ( front side bus) you said you took out pc3200 ddr memory, and replaced it with pc2700. The difference between the two memory modules are distinct. The pc3200 runs at 400mhz fsb whereas the pc2700 runs at 333mhz fsb, i.e. slower than the system fsb speed. You cannot "forwards clock" a fsb speed but you "backwards clock" it. Put the old memory back in and it wil run, either replace the memory with 400mhz fsb/pc3200 memory or add to it but using the same clock speed, i.e. pc3200/400mhz Chris http://www.motherboardsrus.net

Posted on Jun 06, 2009

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