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LCD monitor displays in monochrome

By Kijana
Jun 27, 2016
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  1. Hi guys, I have an old cpu, HP Compaq dc7700 sff that is displaying in monochrome. I have tested several monitors, therefore I think the problem is with my cpu. I don't have a gpu card.

    Thanks.
     
  2. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

  3. Kijana

    Kijana TS Enthusiast Topic Starter Posts: 60

    Hi, thanks. I have seen this answer.

    My monitor is not displaying in black and white, it looks greenish. I have even tried reinstalling different versions of Windows, but it can't get right. I also don't have a dedicated graphics card.
     
  4. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    If your monitor works properly with another system, then I would think that the problem is with the video portion of your motherboard. Unusual problem.

    I believe in cleaning as the first step to solving any problem... a bit of corrosion or a broken solder joint on a connector can interfere with transmission of color - for VGA connector pin 1 and pin 6 carry red signal - so inspect your connectors carefully under strong light and magnification.

    https://en.wikipedia.org/wiki/VGA_connector

    https://learn.adafruit.com/adafruit-guide-excellent-soldering/common-problems
     
  5. bazz2004

    bazz2004 TS Evangelist Posts: 1,232   +201

    Try with a different cable between the PC and monitor. If no improvement Cycloid is most likely correct in which case you may want to buy a new computer.
     
  6. Kijana

    Kijana TS Enthusiast Topic Starter Posts: 60

    Hi guys.
    I found the problem was with connection of the feet to the motherboard.

    Thanks a lot guys.
     
  7. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    Terrific!! Please give more detail about the solution... it will help us help others.
     
  8. bazz2004

    bazz2004 TS Evangelist Posts: 1,232   +201

    Well done.
     
  9. Kijana

    Kijana TS Enthusiast Topic Starter Posts: 60

    Hi guys. I really appreciate the help you gave me. I have learnt a vital lesson.

    Unfortunately, am not good at soldering and such, so I'll look for a budget graphics card - maybe secondhand and go on.

    Techspot rocks
     
  10. bazz2004

    bazz2004 TS Evangelist Posts: 1,232   +201

    Good thinking. Be careful to check that whatever card you choose will fit in the space available inside the case.
     
    Kijana likes this.

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