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Thread: Amiga 500 - Help

  1. #1

    Default Amiga 500 - Help

    Ive recently got my Amiga 500 out from the garage and when I try and boot it up I get a constant green and black flashing screen. Was wondering if anyone new what that meant and how to solve the problem? Cheers

  2. #2
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    Hello, somewhere on line you should be able to find out exactly what the start-up colors indicate, my mind is blank right now, BUT first thing to try.....
    Open up your 500 (take of the RF shield, if it's there) and make sure all the socketed chips are Firmly Seated in thier sockets. You stored it in your garage?!? Not a good idea. The constant change of heat to cold could have helped the chips to wiggle loose. If possible, try to store your 500 somewhere
    in your house, where the temp. will be relatively constant
    What does the Caps Lock light do on powering on? Make sure floppy and keyboard cables are plugged in firmly too.....best of luck.
    ------------
    Marc Frick
    ------------

    BE ATTITUDE FOR GAINS
    ------------------------------
    1. SIMPLE SHOOT-TECH
    2. SIMPLE EVASION-TECH
    3. TINY VALOR

  3. #3
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    I have zero first-hand experience with Amigas, but have seen other computers display similar behavior because of bad memory (which still might be cured by re-seating the chips).

    --T
    Teach your children how to think, not what, and hold 'em close, not tight.
    _____________________________________________

    Please visit the Vintage-Computer Wiki. Contributers welcome.

  4. #4
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    Hello, the RAM chips on a 500 are soldered in place. I owned two of them....

    But, check the A501 512K RAM expansion, if it is fitted, in the trapdoor. If any
    trapdoor expansion (A500, 600, or 1200) is not in right, It can cause all kinds
    of problems.
    ------------
    Marc Frick
    ------------

    BE ATTITUDE FOR GAINS
    ------------------------------
    1. SIMPLE SHOOT-TECH
    2. SIMPLE EVASION-TECH
    3. TINY VALOR

  5. #5
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    Well, I knew I was out of my league on this one...

    --T
    Teach your children how to think, not what, and hold 'em close, not tight.
    _____________________________________________

    Please visit the Vintage-Computer Wiki. Contributers welcome.

  6. #6
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    Hey, no problem. The only way to learn is to ask questions, offer suggestions, etc. Amiga's are complicated beasts, particularly regarding hardware.
    If you would want to learn a bit about the Amiga, I recommend checking out Amiga.org, don't have to sign up, just read the 'Amiga Hardware
    Issues and Discussion' posts....
    ------------
    Marc Frick
    ------------

    BE ATTITUDE FOR GAINS
    ------------------------------
    1. SIMPLE SHOOT-TECH
    2. SIMPLE EVASION-TECH
    3. TINY VALOR

  7. #7
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    Yeah, well I've seen C= 64s behave that way before, and I thought that they might be distantly related...

    --T
    Teach your children how to think, not what, and hold 'em close, not tight.
    _____________________________________________

    Please visit the Vintage-Computer Wiki. Contributers welcome.

  8. #8

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    (I'm just trying to figure out his .sig)

  9. #9
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    Quote Originally Posted by CBaldoni at NewTek
    Problem: Amiga system will not boot. Screen flashes colors or keyboard lights flash.

    You may notice that when you turn on or reset your Amiga a few different colors flash by. These actually mean something. Here you go:

    RED Bad ROM
    YELLOW CPU Exception Before Bootstrap Code is Loaded
    GREEN Bad Chip RAM or Agnus (check seating of Agnus)
    BLACK No CPU
    WHITE Expansion passed
    GREY CPU Passed

    Constant white is failure of CPU.
    http://vbulletin.newtek.com/showthread.php?p=44523

    So, if it flashes in green and black, it probably is RAM or the Agnus chip that is bad, as people previously have said.
    Anders Carlsson

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