Takes 2-4 times power on / off before booting (2 beeps) Mystery

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  1. Posts : 30
    Windows 7 Ultimate x64
       #1

    Takes 2-4 times power on / off before booting (2 beeps) Mystery


    Hi Guys.

    I have a Dell Desktop that works well. However, I often press the power button and get no signal to the monitors. I hear 2 short beeps.

    Then I press the power button again briefly, and the fan immediately turns off. I press the power again (not hold) and it starts to boot, but again, 2 short beeps and no signal to monitor.

    After 2-5 times doing this, it all loads, and everything is great, and won't mess up if I leave the p.c. on.

    Anyone have any ideas? Could it be a graphics card going? ram problem? battery on the mother board?

    What could be causing this mystery?

    M14
      My Computer


  2. Posts : 5,915
    Windows 10 Pro X64
       #2

    How old is the motherboard? It could be the battery. I would run memtest.

    RAM - Test with Memtest86+

    Also please fill in the specs of the dell computer.

    System Info - See Your System Specs

    Edit for additional info, how are your temps? try this to see and post results.

    Speccy

    Also have a read here

    Troubleshooting Windows 7 Failure to Boot
    Last edited by Dude; 21 Oct 2013 at 23:56.
      My Computer


  3. Posts : 757
    Win10 Pro 64-bit
       #3

    I have had at least three systems with that very same problem or similar - it needs multiple attempts to start.
    The solution that always worked for me was a new power supply.
      My Computer


  4. Posts : 30
    Windows 7 Ultimate x64
    Thread Starter
       #4

    Hey Guys, thanks so much for the good tips.

    Dude, I will try and fill out specs tom. (plus mem test). I did change the Cmos battery with another PC and reseat ram..

    Unfortunately, now my PC is going into recovery mode OverMaster I wish I had read your advice before I turned it on and off 20 times.. I think I've probably done more damage than I even would have.

    I think you're probably right about the P suppy.. Anyway of testing that with a multi meter?
      My Computer


  5. Posts : 5,915
    Windows 10 Pro X64
       #5

    Have a look at this thread

    Possible PSU Failure?

    And this

    PSU - Test DC Output Voltage
      My Computer


  6. Posts : 757
    Win10 Pro 64-bit
       #6

    A power supply that's failing can damage other parts!
    I've lost keyboards, mice, DVD burners, hard drives, and on one system, the motherboard because of damaged BIOS and IDE controller chips, all because I wanted to try to start a computer with a flaky PSU "one more time".
      My Computer


  7. Posts : 30
    Windows 7 Ultimate x64
    Thread Starter
       #7

    Dude, thanks for the good tips, and Oh Man OvenMaster, that sounds scary.

    I've located a Precision 490 power supply (used at a local shop), but am thinking it may be something else actually. I find that when I manage to get the computer going, it goes into recovery mode. Eventually when I click finish, it goes to restart and won't.. Just goes black.

    However, when I unplug the hard drives, I can get it to boot every time, and get into the bios etc without any trouble. Do you guys think this suggests it's just a bad system drive, and that I may be buying this power supply in vain? Or is it maybe just booting to bios easily without the hard drive attached because it doesn't need the power load to spin the disc?

    If you guys can think of anything to try tonight (like maybe booting to a Linux live image and see if I can access the disks from there, and if so, it's maybe it's just the system drive that's bad?) I'd love to hear about em.

    Any other tips on what to do when recovery doesn't work would be awesome too.

    Sorry this thread is crashing out of control, and thanks for your patience,

    M14
      My Computer


  8. Posts : 757
    Win10 Pro 64-bit
       #8

    Mike14 said:
    Dude, thanks for the good tips, and Oh Man OvenMaster, that sounds scary.

    I've located a Precision 490 power supply (used at a local shop), but am thinking it may be something else actually. I find that when I manage to get the computer going, it goes into recovery mode. Eventually when I click finish, it goes to restart and won't.. Just goes black.

    However, when I unplug the hard drives, I can get it to boot every time, and get into the bios etc without any trouble. Do you guys think this suggests it's just a bad system drive, and that I may be buying this power supply in vain? Or is it maybe just booting to bios easily without the hard drive attached because it doesn't need the power load to spin the disc?

    If you guys can think of anything to try tonight (like maybe booting to a Linux live image and see if I can access the disks from there, and if so, it's maybe it's just the system drive that's bad?) I'd love to hear about em.

    Any other tips on what to do when recovery doesn't work would be awesome too.

    Sorry this thread is crashing out of control, and thanks for your patience,

    M14
    This.
    Removing hard drives takes some of the load off the PSU because spinning up platters takes a fair amount of juice. When I start my PC, all four hard drives spin up when I hit the power switch.
    I'd still put my money on the PSU. I'd try it if I were in your shoes.
      My Computer


  9. Posts : 30
    Windows 7 Ultimate x64
    Thread Starter
       #9

    OvenMaster (and Dude), thanks very much for the support and guidance.

    I'll be picking up that power supply today. Fingers crossed!

    M14
      My Computer


  10. Posts : 30
    Windows 7 Ultimate x64
    Thread Starter
       #10

    Hi Guys,

    So, located the new power supply today, installed it annnnnnd, No love

    Well, maybe it was the power supply, that damaged the operating system, and now the operating system is taking me to a black screen? In any case, moving forward. After I power up / down 4 or 5 times, I can get to the system restore option, but it says system restore is offline. Also, when I insert a new W7 disc, it says it's not compatible.

    Does it make sense to: take out system drive, and view it in a dock from another computer to discover exactly which version of W7 it was, then copy that down and try and track down an older disc?

    I have a lot of important data on the disc, so don't want to reformat and loose all info.

    Any suggestions?
    Attached Thumbnails Attached Thumbnails Takes 2-4 times power on / off before booting (2 beeps) Mystery-img_0932.jpg   Takes 2-4 times power on / off before booting (2 beeps) Mystery-img_0930.jpg   Takes 2-4 times power on / off before booting (2 beeps) Mystery-img_0933.jpg  
      My Computer


 
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