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won't boot up after changing clock speed

By newbie5678
Nov 23, 2003
  1. I was in bios and changed the CPU clock speed from default to 133 Mhz- saved and exited bios. But now it won't boot up at all. I just get a black screen. Can't even get into bios to change it back to default speed. What happened and what should I do to fix it?
     
  2. StormBringer

    StormBringer TS Rookie Posts: 2,244

    tried clearing CMOS?
     
  3. newbie5678

    newbie5678 TS Rookie Topic Starter Posts: 33

    How do I clear CMOS? The computer won't even turn on.
     
  4. StormBringer

    StormBringer TS Rookie Posts: 2,244

    You have no power at all?

    What actually happens when you power on the machine?
    Do you hear any noises(fans and drives)?
    Do the lights on the drives flicker as they normally should?

    As for clearing CMOS, it can vary according to manufacturer so look in the manual. Most have a jumper that you use to clear it, some use the INSERT key.
     
  5. newbie5678

    newbie5678 TS Rookie Topic Starter Posts: 33

    There's no power at all. No lights. No sounds. Nothing happens when I power on.
     
  6. NoisySilence

    NoisySilence TS Rookie Posts: 98

    Try holding down the INSERT while powering on.

    Or look for a jumper on the mainboard that say CLR_CMOS or something of the sort. Power off the machine. Put the jumper to 1. Wait for a few seconds then put it back the way it was & power on your machine.

    What board are you using ? We can't guess by ourselves.
     
  7. newbie5678

    newbie5678 TS Rookie Topic Starter Posts: 33

    Holding down the insert key didn't work.
    I think I've found the Clear CMOS jumper but I'm not sure how to set it to 1?
     

    Attached Files:

  8. StormBringer

    StormBringer TS Rookie Posts: 2,244

    note that there are three pins, the first two are covered by the jumper, move it so that the second and third are covered by the jumper, then move it back after several seconds.
     
  9. newbie5678

    newbie5678 TS Rookie Topic Starter Posts: 33

    Ok- I pulled the jumper, waited a few seconds, put it back in and it worked. I was able to get into bios and set it back to default. I didn't have to put the jumper in the #2 and #3 pins at all.
     
  10. poertner_1274

    poertner_1274 secroF laicepS topShceT Posts: 4,172

    That's strange, but as long as it got straightened out, everything is better. Hopefully there won't be that much more OC'ing in your near future ;)
     
  11. newbie5678

    newbie5678 TS Rookie Topic Starter Posts: 33

    The computer is running at 533Mhz but it's supposed to be at 1Ghz. I'm not sure what happened. Maybe a power outage reset everything to default. But whatever the reason, it's suppose to run at 1Ghz. I'm gonna have to try again some other time.
     
  12. Justin

    Justin TS Rookie Posts: 942

    What processor is it, and can you find out what motherboard you have?
     
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