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Monitor wont turn on after upgraded memory to 512 from 256

When i turned the computer back on i have no display checked connections. Monitor has power swapped memory back to 256 same problem..monitor is using nvidia graphics card. all was working fine until the upgrade.. any ideas on what may be wrong?

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  • Greg Wilson Mar 26, 2008

    Looks like hard drive problem.. CD drive has power HD has power but nothing boots up. CD drive wont load boot disk HD does not beep when system turned on.. Replaced battery on motherboard to reset cmos to default still nothing.. Suspect when I removed the power connection to hard drive and then reinstalled it.. I may have damaged HD.. after 8 years it's probably time to upgrade to new system anyway.. Thanks for the thoughts.

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Check that the video card did not pop up when you opened the case to replace the ram chips,do you get any beeps ?

Posted on Mar 11, 2008

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Theres a driver conplict, run device manager and remove auknown device. restart the computer

Posted on Mar 11, 2008

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My monitor wont display but power is on and when computer is turned on it makes a humming noise that beeps a few times then goes away...


Try to reseat the memory of the computer. Remove and put it back in and check if it will work. If not, and if you have known good memory that you could try it with, then use it. If that works, then you have to replace the memory.

Sep 23, 2010 | Dell OptiPlex GX620 PC Desktop

3 Answers

Computer shuts down


Please visit the below link to solve your problem.Due to some problems I was unable to send you the whole solution so please visit the site.

http://www.ehow.com/how_113600_troubleshoot-computer-wont.html

Thanks And sorry for the inconvenience.
Please rate me for this solution if it works for you.
  • Step 2 If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szt64gb5
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9

    Jul 06, 2010 | Dell Inspiron 530 Desktop Computer

    1 Answer

    I have an hp pavilion dv5. When I power it on the computer starts up but the monitor doesn't come on. And then it does this series of beeps. Beep beep beep. It does that series 5 times


    Before you begin
    Check the following items before using the steps in this document:
    •If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
    •Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
    •If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
    •Disconnect all connected devices except the mouse, keyboard and monitor. This includes thumb drives and camera-type memory cards from card reader slots.
    With the devices disconnected, restart the computer. If the computer starts and the monitor now displays a picture, a device is preventing the computer from starting. Update the BIOS to resolve this issue.
    Step 1: Connect the computer to another monitor
    Connect another monitor to the computer to determine which device has the problem (the monitor or the computer). This step is very important to help you determine if the problem is coming from the computer or the monitor. If necessary, temporarily connect the computer to a friends monitor for troubleshooting purposes.
    After the monitor is connected, turn on the computer and the monitor. What happens?
    •If the newly attached monitor does not display anything , disconnect the cable and continue at Step 2: Is the video connection damaged?
    •If the newly attached monitor displays the first startup screen(s) but then goes black, there is a problem with Windows starting. Skip to step 5 .
    •If the new monitor works , the original monitor or its cables are faulty. Do the following:
    1.Replace the monitor power cable.
    1.Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    1.Replace the video cable.
    Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    1.If the monitor does not work after replacing the cables, replace or service the monitor.
    Step 2: Is the video connection damaged?
    Inspect the video cable and video connectors for damage. Check for sharp bends or breaks in the cable and bent or broken pins at the connectors. With the monitor and computer off, try to straighten bent pins with a small metal tube, like the tip of an empty mechanical pencil or the tip of a retracted pen.
    Figure 1: Video connector
    If you had to straighten any pins, reconnect the monitor making sure that the video cable is firmly connected and then turn on the computer and monitor. If the display is still blank, continue to the next step.
    Step 3: Resetting and updating the BIOS
    You can use these steps even though you will not be able to see anything on the monitor.
    In case an item was changed in the BIOS, such as the primary display device setting, use the following steps to reset the BIOS back to its default configuration:
    1.Turn on the computer and repeatedly press one of the following keyboard keys. Press the key about once every second for 5 seconds after turning the computer on.
    ◦For HP and Compaq computers that came with Windows 7 and Vista, press F10 .
    ◦For HP and Compaq computers that came with Windows XP, press F1 .
    ◦For Compaq Presario desktop computers built prior to 2002, press F10 .
    1.Wait another 5 seconds.
    1.Press the F5 key. This restores the default settings of the BIOS.
    1.Press the Enter key. This accepts the changes.
    1.Press the F10 key. This saves the changes.
    1.Press the Enter key. This saves the changes and exits from the BIOS.
    1.The monitor should display the first screens received from the computer (the logo screens). If not, find and download the latest BIOS update if one is available for your computer.
    1.If a BIOS update was not available or the monitor is still blank, continue to the next step.

    Jun 11, 2010 | PC Desktops

    1 Answer

    Hp pavillion 533w wont boot up green light on front comes on but thats it no fans coming on either


    Hi ,

    If the green light comes on on the front panel then it means the fan is spinning so what u can do is a self test for the monitor.Disconnect the vga cable from the back panel of the computer tower and then check if there is a message displayed on the monitor that should say check video signal or no inoput signal ,if there is no such message displayed then it means the monitor is a fault .If not then reset the memory card and then check .U can also run a test for the motherboard to do this u will have to remove the memory card and then turn the computer on if u hear long beeping noise it means the motherboard is fine .If u dont hear any sound then the mother board needs to be repaired or replaced...

    all the best

    May 01, 2010 | HP Pavilion 533w (P9859AR#ABA) PC Desktop

    1 Answer

    Montior in Sleep mode


    Take out the newly installed memory chip... If your sure its compatable with the motherboard, reseat it correctly into it's slot and fire up the computer. OR try rebooting with just the old memory installed. Monitor blackouts happen when the incorrect Memory is installed OR when the Memory is not seated properly.
    stop chasing video and monitor problems...... :)
    Regards..

    Mar 27, 2009 | E-Machines eMachines Desktop PC

    1 Answer

    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?


    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.

    Feb 25, 2009 | E-Machines (T2958) PC Desktop

    1 Answer

    Pc wont read monitor


    If you look at the monitor there will be an led light on the front that is always orange or yellow when the computer is off but still connected to the monitor. This led will turn green when the computer boots up, sometimes even showing a "no signal" display before boot. If you see the 'command line'  text during the boot process (video info, BIOS version, POST text, etc) then the monitor is being recognized by the computer. If that text goes away and the led goes back to orange then it is a driver or operating system problem. Pressing whatever key is prompted at the lower left of the display, if you have a display, like F1, F2, F10, Delete or whatever will get you to the setup program and all is good with the display/computer connection and a green light will stay on. If you never get that green led light then either the video card is bad or not seated properly 

    Nov 16, 2008 | HP PAVILION A6230N DESKTOP PC

    1 Answer

    NO SIGNAL What do I do?


    These messages are normal when the computer truly goes into suspend mode or loses the video signal (such as when the computer is suddenly turned off).
    If the monitor displays any of these messages when the computer should be displaying video , do the following items until an image from the computer appears:

    1.
    Ensure the computer is really sending a video signal. To bring the computer out of suspend mode: move the mouse, press the spacebar, and press the suspend button on the keyboard twice (the suspend button has an icon that looks like a quarter moon).
    2.
    Ensure the video cable is connected (and connected to the correct video port).
    3.
    If you are trying to view video from a set-top box, DVD player or similar device, use its menu system to set the proper video output channel so that it matches the video connection are using. For example, if the monitor is connected to a satellite receiver via a second HDMI connection on the back of the receiver, select HDMI-2 (or similar) using the remote control for the receiver.
    4.
    Turn off the monitor using the monitor's power button and then restart the monitor.
    5.
    Cycle the power on the monitor as follows:
    1.
    Turn off the monitor. The power light on the monitor should be off. Leave the computer turned on.
    2.
    Unplug the power cord.
    3.
    Wait 5 seconds.
    4.
    Plug in the power cord.
    5.
    Press the power button on the monitor to turn on the monitor.
    One of two things happens:
    1.
    The image from the computer displays on the monitor and you can use the computer again. This indicates that the monitor was unable to detect that the computer had awakened from suspend mode. Turn the monitor off when it is not being used or disable suspend mode. For some computers, updating the BIOS corrects these types of suspend problems.
    2.
    The power light on the monitor comes on but the screen displays one of the messages again. The monitor is not receiving a video signal from the computer that it can detect and use. Continue using these steps to adjust the Windows display resolution to the Monitor's native (default) resolution.
    6.
    Adjust the Windows display resolution to a setting that is compatible with the monitor:
    NOTE: The native resolution setting for your model of monitor can be found in the Monitor User Guide, the monitor's product packaging, and product specifications.
    1.
    Restart the computer and press F8 repeatedly after the first logo screen.
    2.
    Select Safe Mode .
    3.
    Windows should open showing a Windows desktop with lower resolution and fewer colors.
    4.
    In Windows Vista, click Start , Control Panel , and click Adjust Screen Resolution in Appearance and Personalization.
    In Windows XP, click Start , Settings , Control Panel and then double-click the Display icon and select the Settings tab.
    5.
    Move the slider bar until the native resolution for the monitor is set, click OK and restart the computer.
    6.
    If the native resolution is not available from the slider bar, click Advanced Settings , click List All Modes (from the Adapter tab), select the resolution, and click OK .
    If the native resolution setting is not available as a selection in Windows, you can temporarily use 1024 x 768 to complete these steps. However, you should update the graphics driver on the computer. Updating the graphics driver can provide more display resolutions to Windows; possibly including the native display resolution for the monitor.
    *
    Check for nVidia video driver updates at nVidia Home Page (in English).
    *
    Check for ATI video driver updates at ATI Home Page (in English).
    *
    Check for S3 video driver updates at S3 Graphics Home Page (in English).
    *
    Check for Intel video support and downloads, Intel Downloads (in English).
    *
    If you own an HP or Compaq computer, HP hosts video drivers and some video driver updates at the HP Software and Drivers site (in English)
    7.
    Connect the monitor to another computer that you know is working to determine if the monitor should be serviced or replaced:
    *
    If the monitor displays an image from another computer, you know that the monitor works. Troubleshoot the video connection and graphics adapter on the computer.
    *
    If the monitor remain blank when connected to another computer, the monitor signal processing hardware may be bad. The monitor should be repaired or replaced.

    NOTE: One or more of the links above will take you outside the Hewlett-Packard Web site. HP does not control and is not responsible for information outside of the HP Web site.

    Jun 15, 2008 | HP PAVILION A6230N DESKTOP PC

    1 Answer

    HP desktop monitor problem


    hi try this ,,,
    1. Ensure the video cable is connected (and connected to the correct video port).
    2. Turn off the monitor using the monitor's power button and then restart the monitor.
    3. Cycle the power on the monitor as follows:
    4. Turn off the monitor. The power light on the monitor should be off. Leave the computer turned on.
    5. Unplug the power cord.
    6. Wait 5 seconds.
    7. Plug in the power cord.
    8. Press the power button on the monitor to turn on the monitor. One of two things happens:
      1. The image from the computer displays on the monitor and you can use the computer again. This indicates that the monitor was unable to detect that the computer had awakened from suspend mode. Turn the monitor off when it is not being used or disable suspend mode. For some computers, updating the BIOS corrects these types of suspend problems.
      2. The power light on the monitor comes on but the screen displays one of the messages again. The monitor is not receiving a video signal from the computer that it can detect and use. Continue using these steps to adjust the Windows display resolution to the Monitor's native (default) resolution
      3. Connect the monitor to another computer that you know is working to determine if the monitor should be serviced or replaced:
        • If the monitor displays an image from another computer, you know that the monitor works. Troubleshoot the video connection and graphics adapter on the computer.
        • If the monitor remain blank when connected to another computer, the monitor signal processing hardware may be bad. The monitor should be repaired or replaced.
        hope it will work for u .. little_angel

    Apr 30, 2008 | HP Pavilion a305w (DM181AR) PC Desktop

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