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Monitor comes on but wont show picture

I switched the computer from one room to another. When i plugged everything back up and turned it on the monitor wont show the picture. It says entering power save mode and the screen stays black.

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You should make sure the cable is plugged into the video port on the back of the tower. Also, if you have more than one video card, ie an "onboard card" and another card that was added later, try alternating one to the other and see if the other one works. You can identify video ports by finding the blue pentagonal plug. It also will be the only plug that your monitor cable fits into (that is describing a VGA cable, a white cable is a DVI cable and is even easier to identify.) You might also want to make sure the video card wasnt jostled out of place. The final solution could be you have developed some bad memory modules, or the memory was jostled out of its slot during the move.

Posted on Jan 03, 2009

  • TCC Aug 30, 2014

    Make sure you did NOT push source signal button. This allows you to switch from DVI to VGA and S-Video, etc.

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1. Does this system power up?
NO: Troubleshoot power supply failure (Power supply of monitor, UPS/backup power supply, power outlet/power strip, wall jack, breaker box for building)
YES: If there is power, then proceed to (2).
2. Is there video displayed on the screen?
NO: If there is no video displayed, then proceed to (3).
YES: If there is video displayed on the screen/monitor, then proceed to (4).
3. Is the monitor powered on?
NO: Check the monitor's power source. Make sure a detachable power cord is fully seated in the monitor socket by unplugging the cable and plugging it back in securely.
YES: If the monitor is powered on, then proceed to (5).
4. Is there a blinking cursor only?
NO: If there is no blinking cursor, then proceed to (7).
YES: If there is a blinking cursor, then proceed to (6).
5. Are the settings okay? Controls in middle of range?
NO: Adjust the brightness and contrast.
YES: If the settings are okay, then proceed to (6).
6. Do you hear a string of beeps?
NO: If you do not hear a string of beeps, then proceed to (8).
YES: If you do hear a string of beeps, then possible causes could be: adapter or RAM is loosely seated - reseat on the motherboard/replace the motherboard.
7. Does the display say "No signal displayed"?
NO: If the display does not say "No signal displayed", then proceed to (9).
YES: If the display does say "No signal displayed", then proceed to (8).
8. Is the video cable secure?
NO: If the video cable is not secure, then connect the video cable.
YES: If the video cable is secure, then proceed to (10).
9. Is it stuck on the BIOS screen?
NO: If it is stuck on the BIOS screen, then possible causes could be: adapter or RAM is loosely seated - reseat on the motherboard/replace the motherboard.
YES: If it is stuck on the BIOS screen, then possible causes could be: a motherboard failure, a device conflict, or a bad adapter (even if a new one has recently been installed), then the motherboard likely needs replacing.
10. Is the video cable damaged or are the pins bent or missing?
NO: If the video cable is not damaged or the pins are not bent or missing, then possible causes could be: a motherboard failure, a device conflict, or a bad adapter (even if a new one has recently been installed), then the motherboard likely needs replacing.
YES: If the video cable is damaged or the pins are bent or missing, then repair or replace the video cable.

Good luck!

Posted on Jan 03, 2009

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