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Dell desktop powers on nothing but black on screen I have the same problem except my computer is a HP a804n. I turn the power on, the desktop icons come on then the computer shuts off. What do I need to do to fix it?

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Resolving the blank screen Follow the instructions below in order to fix this issue:

  1. Remove any CDs, DVDs or memory cards from the computer.
  2. Disconnect all devices from the computer leaving only the original mouse, monitor and keyboard and power cord connected.
  3. Restart the PC.
  4. Press the F1 key repeatedly during the first startup screen until the entering setup message appears.
  5. Press the F5 key to restore the default settings. Use the arrow keys to select YES and press ENTER .
  6. Press the F10 key to save the changes and exit. Use the arrow keys to select YES and press ENTER . The PC restarts.
  7. When the system restarts select Last Known Configuration from the boot menu. The PC should now startup normally. If the blank screen persists continue with the following steps.
  8. Select Safe Mode from the Windows Advanced Options Menu .
  9. Use Microsoft's System Restore feature to restore your computer to an earlier time and correct the issue.
  10. If disconnecting devices from the PC resolved the startup issue, re-attach one device and then restart the PC. If this is successful, re-attach the next device and restart the computer again. Repeat this process until you find the device that is preventing the PC from starting properly. Contact its manufacturer for advice on this issue. Please, keep your PC software updated in order to possibly prevent the error from occurring in the future:
    • update Windows.
    • update the BIOS.
    • The software for the devices may need to be updated or reinstalled. Contact their manufacturer for information on the latest updates for your devices.

Posted on May 21, 2008

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Here are some diagnostic tools for DELL computers.

http://www.dell.com/support/Article/us/en/19/SLN284978/EN#2012_to_Present

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My hp pavilion a430n is not turning on. even though i pressed the power button the light wont even turn on. it is truly annoying and the screen says something about the power supply and green, red, blue...


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Are Dell monitors not compatible with older HP Pavilion Computer? I tried to connect my HP CPU to a Dell monitor and it will not recognize it at all.


It shouldn't make any difference which monitor you are connecting to any computer. In fact, I am running a 19" HP Flat Panel on my Dell Dimension 2400 right now. It is NOT a wide screen monitor as the Dell built in graphics card will not support the RESOLUTION RATIO required for the wide screen. Check what setting is "native resolution" for your monitor and see if your graphics card will support it. If not, using your old monitor, try different resolution settings. Right click on your desk top, click on properties and that should bring up the display properties box. Try a lower setting as larger settings are the ones that will give you a black screen. It will probably give you a smaller picture on your old monitor, or perhaps smaller or larger icons on the desk top. Accept the new settings, turn off your computer and switch monitors, and turn your computer back on. If you get a picture, but it does not fill the whole screen or the icons seem too large or small, then go back into properties from the desktop and try a different resolution ratio until the picture seems correct.

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Dell desktop


i hav worked for dell for 2 years as tech support executive..helping ppl at 1800 tolfree number.
According t me is:-
1) use last known good configration.
(while the computer is starting u would see BIG blue DELL logo , at that time keep taping F8 till u get a black screen with options . one of the options in the middle would say "Last known goog configration that worked" ).
kindly do this step with no usb devices attached to computer.
kindly have a just a monitor cpu and keyborad and mouse.
2)if this doesnt work get to the same process above and try "safe mode " rather than "last known good configration"
-when u see the destop screen right click on it.click on arrange icons then click on show desktop icon.

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