processor or mobo? try and solve this one

Discussion in 'IBM' started by jon, Aug 23, 2004.

  1. jon

    jon Guest


    i have built maybe ten computers for people, and have never really had a
    problem.. guess what just hit the fan. i have had boot problems of one
    kind or another for 3 weeks! as i solve one problem, the box
    immediately starts doing something else. i flashed the bios for the 2.8
    prescott chip i put into it, etc., it STILL would not recognize the hard
    drive. so i called intel, and they told me that the processor had
    probably fried, and sent me another one. i just put it in, and now the
    box doesn't even go through the whole boot process, and i never get a
    signal to the monitor-just a signal error message. the mobo
    manufacturer says it's the chip, but now i am beginning to wonder. i
    though it was odd that i was only on the phone w/intel for about a
    minute, and she suggested they send me another chip-no cost. i asked
    her if there were any known problems with the new prescott chip, she
    said no. i asked the mobo manufacturer if there are any know probs.
    w/the mobo, he said no. how can i be sure that it's either one or the
    other? is this new signal error simply a step that i need to take to
    finish the install of the processor? what would your next step be????

    thanx mucho
    system specs:

    asrock p4s55fx mobo
    p42.8gig 1mb L2-cache
    radeon 9200le video
    jon, Aug 23, 2004
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  2. jon

    JK Guest

    Good luck. Next time build an Athlon 64 system instead.
    JK, Aug 23, 2004
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  3. jon

    jon Guest

    thanx for your useless input fanboy.
    jon, Aug 23, 2004
  4. Anything can break. Sometimes in strange ways that affects a computer
    "in ways it shouldn't do".

    The working order in cases like these is to remove everything that
    isn't absolutely necessary to get some kind of response from the
    computer, and then start working from there...

    First, disconnect _everything_ that isn't absolutely necessary. This
    means, keep only the mobo, the CPU, the power supply and the PC

    Disconnect/remove everything else from the motherboard. (RAM, HDD
    cable, floppy cable, graphic card, sound card, keyboard, mouse, any
    other stuff...) Even the chassi cables (power LED, HDD LED, reset
    button, etc). Just keep the speaker connected. Also disconnect
    everything else from the power supply (just keep the mobo connected.)

    Now we've eliminated everything that possibly could go wrong in any
    way at all. I think. :)

    Then, to start the computer, short the two correct pins with for
    example a small screwdriver. (Carefully! Don't take the wrong pins!)

    If you don't get an error beep from the speaker now (it should
    complain about missing RAM...), one of four things are probably
    broken: The CPU, the motherboard, the power supply or the PC speaker.

    Test the power supply and the PC speaker with another computer, to
    verify its functions. If OK, try to clear CMOS (reset BIOS) on the
    mobo. If it still doesn't work, it SHOULD be the mobo that is at
    fault, since you've already tested with two different CPU's.

    If you DO get an error beep, start adding things one by one. Add RAM
    and try again. Now you should get another error beep, complaining
    about missing graphic card. Add it, connect a monitor and try again.
    You should now get video output. Keep adding stuff one by one...
    Peter Emanuelsson, Aug 23, 2004
  5. jon

    jon Guest

    i was afraid of that-i've done the shorting thing already, i was just
    hoping there was a more expedient way. off goes the power supply.
    thanx for your in depth answer.
    jon, Aug 23, 2004
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