Beige G3 is dead!?!??!?!?

Discussion in 'Macintosh Computers' started by bluetrepidation, Feb 29, 2004.

  1. bluetrepidation macrumors member

    Joined:
    Feb 26, 2004
    #1
    I have a Beige G3 with an upgraded 400MHz G3 chip.
    Booted, ran for a few min, opened Safari and it went blank.
    Now it will not boot. No power light. Only thing that happens it the power supply spools up. No mac chime either.

    New ROM Rec C
    Raytheon VRM module

    WHAT HAPPENED? This is the SECOND machine that died on me. The first one died b/c I didn't update the VRM but apparently this didn't help. With the original it didn't even boot. Motherboard just died.

    I just want to know WHY?

    A.J.
     
  2. blue&whiteman macrumors 65816

    blue&whiteman

    Joined:
    Nov 30, 2003
    #2

    all I can think of is maybe you need a new pram battery?
     
  3. bluetrepidation thread starter macrumors member

    Joined:
    Feb 26, 2004
    #3
    Nope battery is good, tested it with my volt meter.

    A.J.
     
  4. mklos macrumors 68000

    mklos

    Joined:
    Dec 4, 2002
    Location:
    My house!
    #4
    Did you try hitting the power reset button on the logicboard? Will it work with the old processor?
     
  5. applemacdude macrumors 68040

    applemacdude

    Joined:
    Mar 26, 2001
    Location:
    Over The Rainbow
    #5
    Sometimes its static in the motherboard. Take it out and de-static ize it(spelling). Have you tried getting your old zif and putting it back and see if its the motherboard or the 400 mhz zif?
     
  6. bluetrepidation thread starter macrumors member

    Joined:
    Feb 26, 2004
    #6
    I have 3 G3 ZIFs here. The original and two 400MHz. None of them do anything. I'll try to clean everything and see what happens.

    A.J.
     
  7. bluetrepidation thread starter macrumors member

    Joined:
    Feb 26, 2004
    #7
    Yes, same thing happens.

    I'd just like to know why this happens. Not to upset about busting the machine but not knowing WHY it broke is driving me nuts.

    A.J.
     
  8. bluetrepidation thread starter macrumors member

    Joined:
    Feb 26, 2004
    #8
    Fixed

    OK I got it to work and here is how it goes. Someone with a similar problem told me to do this. Take out the processor, all PCI cards, and leave in on stick of RAM and the Rev C ROM. Try to boot the machine. You'll hear 3 beeps. Reinstall all your hardware and it should run now! Here is the deal. The old buss control chip isn't programmed to run the newer line of G3 chips faster then 233. So when installing the newer chip the buss control gets confused and the board fails to boot. By removing the processor and PCI cards and turning the machine on the Rev C ROM is allowed to reprogram the buss controller with new code from the Rev C ROM allowing the newer G3 chips to run. COOL! So for all of you with "dead" boards try it.


    A.J.
     

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