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PC only boots after on/off/on cycle ?

Discussion in 'Electronic Design' started by Skybuck Flying, Nov 26, 2012.

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  1. Today was another weird day electronics wise.

    I had to pull out all cables.

    The monitor did not want to turn off.

    The old PC also didn't boot.

    It does this each time but this time it was worse.

    Anyway what I need to do to make it work is:

    1. I turn it on, but nothing happens.
    2. I turn it off.
    3. I turn it on again and the PC goes into the BIOS stating that CPUs
    setting was wrong.

    I tried setting volts for cpu to 2.00, 2.05, 2.10 but that didnt help.

    Really strange how it doesn't want to boot up the first time.

    Any ideas what could be causing this ?

  2. Wow weirdest thing ever.

    I was using windows live messenger and suddenly it seemed like the harddisk
    turned off ?!

    I had to reboot to computer... I was like: "wtf" "bizar".

    Only time I saw a computer do that was when a cable was loose.

    So far no loose cables, so totally weird.

    Possible explanations:

    1. Maybe one of the cables which isn't being used, caused a spark or so,
    that would be scary if that was the case.
    2. Maybe system is just old and slowing dieing.
    3. Maybe touching PC case to attach headset cables caused damage because
    grounding maybe not present. So it might go to the same way as the dreampc,
    4. Maybe bot in messenger had something to do with it, me blocked it...
    seems to cause trouble every time.
    5. Maybe a network shutdown packet was received by PC.
    6. Maybe there was a power drop on the power net, didn't notice any
    flickering lights though.
    7. Maybe one of the power cables is bad ?

  3. GMAN

    GMAN Guest

    Your damn battery is dead in your PC!!!!
  4. Don McKenzie

    Don McKenzie Guest

  5. Paul

    Paul Guest

    In a typical PC, a CR2032 coin cell battery, maintains BIOS settings
    and the real time clock. If the CR2032 is discharged, there is
    nothing to maintain accurate time when the computer is unplugged.
    If you don't want to replace the coin cell battery, then the
    time settings must be re-entered, on each power-up of the PC.
    Enter BIOS and set the clock, save, exit, boot.

  6. It's more than that. All the BIOS settings are in the RAM that is battery
    backed up. In the old days, you'd have to enter details of the hard drive
    (or select from a menu) and that would go every time the computer forgot.
    Same with boot sequence and all that.

    With a dead battery, the cluelss might believe the computer is broken.

    Let's not forget this is "Radium". A little knowledge is worse than a
    lot. He'll pull out all kinds of things, only to realize the plug wasn't
    in the wall (if he notices that). Or a different way of looking at it is
    that he's posting for attention, a classic troll, and he has no real
    problem or any need to "design a great 1998 computer today", he's doing it
    to get a reaction. Note the crossposting, it's not as bad as in the old
    days, but it's consistent with someone wanting to be annoying.

  7. Paul

    Paul Guest

    Naw, it's not Radium. Radium is much more destructive. And Radium
    has certain trademarks that are entirely missing from Skybuck posts.
    So they're not the same person. Radium throws tantrums more easily.
    Radium can't help itself.

  8. Flasherly

    Flasherly Guest

    I just bought a BiosedStar MB a couple months ago and returned it
    because it wouldn't hold BIOS settings. Who wants to turn on a
    computer that flashes in your face: Warning! Warning! Will Rogers --
    Danger Due to CMOS MisMatch!

    It wasn't a 2032 but close enough (according to WIKI) to open -very
    first thing- the computer next to it, handy dandy like, and pull its
    2032 for a substitute.

    Some -- not many, yet some nevertheless do have BIOS issues. Had
    another one, I sold identified for such, that had a knack for dropping
    CPU multipliers to x4 instead of x12, were the CPU properly picked up.

    I flash them, too, first thing as a manner of course. Although the
    replacement for the BiosedStar, a nice little P4 Gigabytle, I did a
    revisionary flash to a BIOS dated prior to what was provided. Seemed
    different. How many people do you know that buy a new MB and put an
    old BIOS on it for no particular reason? It's not at all like I
    planned it.

    (Actually, it had at USB slotted entry BIOS progressions, that, in
    order turn on USB S3, a normal series of recognizable USB settings had
    to be first engaged for an on state. However, I did, again without
    reason, leave on the S3, and that appeared caused me some grief
    because the computer wouldn't work right, had streaming/speed issues
    with USB and HDs, until S3 was disengaged. Of course not nearly as
    fast as this is transpiring. Hardly that. I suspect I may in the
    physics of anomalistic retaliation have been spirited to a rebuttal in
    form of a former BIOS revision. But, I've still got that S3 in
    there. Do you know what in hell it is?)
  9. mike

    mike Guest

    There's a lot more going on in the BIOS than the clock.
    If you used anything but the defaults, they need to be changed too.
    I just went thru a big hassle with system instability because I forgot
    to turn hyperthreading back on in the BIOS.
  10. Don McKenzie

    Don McKenzie Guest

    The sad part about this thread is that someone apparently in need of assistance asks for it, everyone including me jumps
    in to help, then the original poster either doesn't read the thread, or decides not to follow it, and doesn't respond in

    Leaving all follow up posters to guess at the problem and the fix.


    Don McKenzie

    $30 for an Olinuxino Linux PC:

    The World's Cheapest Computer:
    DuinoMite the PIC32 $25 Basic Computer-MicroController
    Add VGA Monitor/TV, and PS2 Keyboard, or use USB Terminal
    Arduino Shield, Programmed in Basic, or C.
  11. "any way'

    It's a dead battery.

    Usenet line length should be held below 73 characters.
  12. Don McKenzie

    Don McKenzie Guest

    Hmmmm..... Just reset from 120 back to 72
    Don't know why it gets out of wack from time to time.
    Could be the number of Tbird versions.

    "Any way", appears OK now. :)


    Don McKenzie

    $30 for an Olinuxino Linux PC:

    The World's Cheapest Computer:
    DuinoMite the PIC32 $25 Basic Computer-MicroController
    Add VGA Monitor/TV, and PS2 Keyboard, or use USB Terminal
    Arduino Shield, Programmed in Basic, or C.
  13. Your damn battery is dead in your PC!!!!

    At first it sounded logical, me being at a loss I gave it a shot, I went to
    the store and bought 2 batteries which are exactly like the previous one.

    CR 2032 VARTA it says jul-2022 so I guess these batteries will last 10 years
    or so.

    I tried it, I put them into the PC.

    Today I booted the PC and nothing, again a black screen. I had to boot it

    Now that I think about it some more it wasn't logical after all.

    I have never seen a PC boot to a black screen because of a dead battery.

    It could probably simulate that scenerio by leaving the battery out of it...
    but won't do it now maybe later.

    So another 10 bucks wasted but it was worth a shot.

    Now back to other theories why this could be happening:

    1. The motherboard is simply damage in some way when the previous power
    supply blew.

    2. Perhaps the power on switch header is wrongly connected.

    3. Perhaps it has something to do with the power on button. I never liked
    that button... I suspect it has something to do with it... maybe it produces
    a power surge of some kind.

  14. I have read all threads as usual... and I tried to fix it (battery
    replacement)... unfortunately no success so far.

    I did try an overclock long ago to see how that turned out from 450 mhz to
    600 mhz... then it frooze once, maybe that damaged the processor's boot
    capabilities in some way... but I don't think so...

    Even my DreamPC sometimes had booting problems with this chieftec case and
    the seasonic s12 600 watt power supply... now my Pentium III 450 mhz uses it
    and some of that behaviour is the same but now even worse... it does it
    almost each time.

    Later today I will pick up 2 new motherboards to fix my DreamPC 2006... and
    also new memory of the old Pentium III 450 mhz...

    Once that works I will take pictures of the pentium III 450 mhz bios
    settings so you guys can have a look at it... maybe you will spot something
    weird... I never really had to set it up in the bios to get it booting
    properly so it's probably unlikely that it's a bios setting that is causing
    trouble but will show anyway.

  15. Flasherly

    Flasherly Guest

    You'd know immediately if it were the power button. Had one with
    intermittent connects when engaging. MB responses are immediate to
    that sort of sensitivity. It'll stand out like a sore thumb or
    electrical shock. Power supplies, though, can be some of the worst
    ways to go about troubleshooting for problems that there wouldn't
    appear neither rhyme nor reason for. I know there have been instances
    when I simply took a spare power supply I had around for new stock,
    and simply connected it for nothing more worse for wear than a quick
    fix. An intuitive hunch that went down as quick as a Hostess
    Twinkie. Still, and though my days of buying dirt-cheap, no-name PS
    units may have passed, I'll still never again fully trust them. MBs,
    past PS units, just possibly might come in second place for insidious
    reasons for demon-possessed computers -- like the MB I had that slowly
    at first, but with a persistently advancing appetite, would eat up and
    then, sooner than later, spit out all my perfectly ruined but
    beautiful, hand-selected power supply units.

    The PS is still the cheaper alternative to a no-brainer, bald-faced,
    modular swap-out fix attempt. Who says it has to be gamer or server
    grade? May be a local unit from a chain store, that from "all
    indications," didn't quite fit the bill for a return on purchase
    price, you do understand. Order out for the real stuff -- nor, a bad
    idea, at all, to have a spare from when they're on sale. It should
    then make a unmistakable difference, if the problem is one of
    emancipated electrons.
  16. JW

    JW Guest



    Uhhh... Yeah, what he said.
  17. Flasherly

    Flasherly Guest

    Damn, and I just finished upgrading my last remaining spare power
    supply with the rest of a new computer?
  18. JW

    JW Guest

    Is that what happened? Well, whaddya know.

  19. Your graphics card is not connected properly.

  20. Through you would be ideal.
    But such dreams never come true.

    Your last few responses have been truly comical.
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