No post beep and no bios just a black screen

By bonecollector1
Apr 2, 2008
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  1. When i turn on my computer i heard no post beep and i got just a balck screen. I took out the memory no beep. I disconnected all the power connector except the one to power the mobo and no beep either. Any other suggestions or what you think is the promblem? thankz
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,684   +153

    "Sounds like a dead BIOS chip..." From the limited description... Power supply or motherboard may be bad. Bios chips fail more from bad attemps of updating or flashing rather than out-of-the-blue
  3. bonecollector1

    bonecollector1 Newcomer, in training Topic Starter Posts: 21

    thankz but how can you test to see if the bios chip is bad?
    System: Man: PC Chips
    Hard Drive: 80gb
    Memory:DDR333 PC2700 256mb
    processor chip: socket 462
    motherboard: SIS 964L
    Bios chip: 686 AMBIOS TN64 3177
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,684   +153

    Replace the motherboard. If the bios chip is bad, this usually means the the motherboard MUST be replaced. Have you tried reseting the CMOS?
  5. bonecollector1

    bonecollector1 Newcomer, in training Topic Starter Posts: 21

    know i haven't tried resetting the cmos i will do that i post back my result
    thanks
  6. Tedster

    Tedster Techspot old timer..... Posts: 10,074   +13

  7. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,684   +153

    Nice guide Tedster. I really doubt if bonecollector1's PC Chips motherboard has an LED error display. We already know the board gives no beeps. Lets let him report back on the results of the CMOS reset
  8. bonecollector1

    bonecollector1 Newcomer, in training Topic Starter Posts: 21

    ok i have reset the cmos but i haven't gotten any beep either. I guess the motherboard went dead then
  9. Tedster

    Tedster Techspot old timer..... Posts: 10,074   +13

    have you tested the PSU with a tester tool AND a multimeter?
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