Question about E-Machines (T2958) PC Desktop

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E-machine was working fine last night got up and it turns on but the monitor says check cable or power but all is ok.Computer wont display anything, can anyone help?

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  • abaker4809 Feb 25, 2009

    I have purchase a video card and tired the monitor on another puter and it works but same problem when I hook it back to my computer even after the card.Also took out battery and then replaced it but no change.

  • abaker4809 Feb 25, 2009

    Called a computer repair place and they told me my mother board was bad is this true?

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Do a reset: Turn the computer and monitor off. Unplug the monitor video cable from the computer and unplug the monitor power cord from the wall outlet. Let it sit for 5 or 10 minutes. Plug everything back in, turn on the monitor, then start the computer. Sometimes that will work.
If you still have the same problem, try to borrow a known to be good monitor from somebody. If it works, then you know your monitor is bad.
It's also possible that your video circuitry is bad. If the monitor plugs straight into the motherboard (onboard video), then you'll need to purchase a video card and install it. Disable the onboard video first.

Posted on Feb 25, 2009

  • Bob
    Bob Feb 28, 2009

    Sorry I took so long to get back, just had a death in the family. Thanks for the positve feedback and taking the time to vote. Yes, it is possible that the mobo is bad. I would prefer to exhaust all possiblities before declaring the mobo dead though, for as u know, they aren't cheap. Probably better off buying a new computer for not much more than the price of a new mobo plus labor. Plus you'll get a better computer. Just need the tower.

    BobB

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What would cause a DELL Inspiron 580 that powers on fail to display anything on the monitor?


You were right that 4 beeps was RAM. Now though, if you're getting no display .. I'm wondering if something may have been bumped etc when you were having to get in the machine. You might want to reseat the video card (if not mainboard video). Note :: Before attaching or detaching monitor cables, be sure the monitor is off as well as the computer. Only usb is safe to manipulate with power on.

First step before doing anything is to make sure all power is off and disconnected from the computer .. and anything connected to it is off too. (not just in standby) .. ok, now that's done, continue..

I'd advise checking any other cables that could have been affected during opening / closing etc .. you may wish to pull & reseat any sata cables going to drives, remove and reseat the video card and generally make sure nothing is on crooked. Sometimes, even connections in a new computer can look fine but until reseated (disconnected & reconnected) they won't work quite right or intermittently.

Hope that helps get you up and going. If not, update here with any other info you may think of. Thanks.!

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1. Check to make sure your monitor is on! Some monitors have more than one power button or switch - check to make sure they're all switched on.Check for disconnected monitor power cable connections. Your monitor might be working fine and your only problem may be a loose or unplugged monitor power cable.Note: A disconnected monitor power cable could be the cause of your problem if your monitor's power light is completely off.Check for disconnected monitor data cable connections. Again, your monitor might be turning on without a problem but no information can get to it because the cable that connects your monitor to your computer is disconnected or loose.Note: A disconnected monitor data cable could be the cause of your problem if your monitor's power light is on but is amber or yellow instead of green.Turn the monitor's brightness and contrast settings completely up. Your monitor might be showing information but you just can't see it because these display settings are too dark.Note: Most monitors today have a single onscreen interface for all settings, including brightness and contrast. If it turns out that your monitor isn't working at all then you'll likely not have access to this interface. An older monitor might have manual knobs for adjusting these settings.Test that your computer is working correctly by connecting a different monitor that you are certain is working properly to your PC. Your monitor may be working fine but your computer might not be sending information to it.If the new monitor you connected does not show anything either, proceed to Step 6.If the new monitor you connected does show information from your computer, proceed to Step 7.Important: When testing with the new monitor, make sure you use the data cable that came with it and not the one from your original monitor.Determine why your computer isn't sending information to your monitor. Since neither monitor works, you now know that the computer is not sending information to the monitor. In other words, you've proven that your computer is the reason that nothing shows up on your monitor.Chances are your original monitor is working fine.Test your original monitor with a monitor data cable that you know is working. It's possible that the monitor itself is working properly but it can't receive information from the computer because the cable that connects the monitor to the PC is no longer working.Note: If possible, test using the data cable from the monitor that you successfully tested with in Step 5. If not, purchase a replacement monitor data cable to test with.Note: The data cable on some older monitors are permanently connected to the monitor and are not replaceable. In these cases, you'll have to skip this step and proceed to Step 8 Replace the monitor.

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This can happen dur to the following reasons
1. Monitor cable that is connected to the tower may be loose, disconnect it and reseat it properly.
2. Monitor cable is damaged, please check if the cable is pressed against some thing and damaged, if so you can detach the monitor cable and buy a new cable.
3. Monitor is faulty, the color functionality electronics is bad, this can be rectified by a monitor service personnel.
4. Display card is faulty (onboard or add on), to check if this is not the scenario - Disconnect the monitor from the tower and turn of the monitor and the switch it on you should be seeing colored bars, if the colours are looking good then the monitor is fine and the display card is faulty.

Please check the above steps one by one and reply to this post in case you are unable to narrow down the cause. Thank you for contacting Fixya.

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1 Answer

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Time Required: Testing a monitor could take from a few minutes to much longer depending on the cause of the problem Here's How:
  1. Check to make sure your monitor is on! Some monitors have more than one power button or switch - check to make sure they're all switched on.
  2. Check for disconnected monitor power cable connections. Your monitor might be working fine and your only problem may be a loose or unplugged monitor power cable. Note: A disconnected monitor power cable could be the cause of your problem if your monitor's power light is completely off.
  3. Check for disconnected monitor data cable connections. Again, your monitor might be turning on without a problem but no information can get to it because the cable that connects your monitor to your computer is disconnected or loose.
    Note: A disconnected monitor data cable could be the cause of your problem if your monitor's power light is on but is amber or yellow instead of green.
  4. Turn the monitor's brightness and contrast settings completely up. Your monitor might be showing information but you just can't see it because these display settings are too dark.
    Note: Most monitors today have a single onscreen interface for all settings, including brightness and contrast. If it turns out that your monitor isn't working at all then you'll likely not have access to this interface. An older monitor might have manual knobs for adjusting these settings.
  5. Test that your computer is working correctly by connecting a different monitor that you are certain is working properly to your PC. Your monitor may be working fine but your computer might not be sending information to it.
    • If the new monitor you connected does not show anything either, proceed to Step 6.
    • If the new monitor you connected does show information from your computer, proceed to Step 7.
    Important: When testing with the new monitor, make sure you use the data cable that came with it and not the one from your original monitor.
  6. Determine why your computer isn't sending information to your monitor. Since neither monitor works, you now know that the computer is not sending information to the monitor. In other words, you've proven that your computer is the reason that nothing shows up on your monitor.
    Chances are your original monitor is working fine.
  7. Test your original monitor with a monitor data cable that you know is working. It's possible that the monitor itself is working properly but it can't receive information from the computer because the cable that connects the monitor to the PC is no longer working.
    Note: If possible, test using the data cable from the monitor that you successfully tested with in Step 5. If not, purchase a replacement monitor data cable to test with.
    Note: The data cable on some older monitors are permanently connected to the monitor and are not replaceable. In these cases, you'll have to skip this step and proceed to Step 8.
  8. Replace the monitor.
    WARNING: A computer monitor is not a user serviceable device. In other words - do not open the monitor and attempt to repair it yourself. If you would rather have your dead monitor serviced instead of replaced then please let a professional do it.

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This could be the monitor cable came loose from the tower (this is our favorite, because it is such an easy repair), or something on the motherboard (that is, anything) that is not functioning and preventing your computer from starting.

Unplug the connecting cable, and plug it back in again, making sure that it is seated properly.

Do you hear any sounds besides the fans? You should be able to hear the faint clicking of a hard drive starting up also. If you hear this, the problem is not in the computer, but in the communication to the monitor.

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If al has failed your power supply is no longer working and will need to be replaced.

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Hi

Disconnect the monitor from the tower and then turn on the monitor.
If u get a msg like no input signal or check video cable then the monitor is fine. If this is the case, it could be a problem with the tower or the cable.

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