Question about Acer AOpen AX 6B Plus (91.87810.321) Motherboard

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No signal input

Hi, i have a acer desktop computer bought from currys, one of the cheaper ones with integrated graphics, over the past couple of weeks it as, on a couple of occasions when turned on, stayed on the acer screen on my moniter.... before loading windows. it has got to the point now where the acer logo will not dissapear from the moniter, and consiquently windows will not load. the computer it self sounds fine when i switch it on, no beeps, smoke etc, i have tried using the f12 button, well all of the buttons but nothing happens. It got to the point yesterday where i almost stripped my other pc down trying different components ie, hard drive , ram chips, graphics card, but nothing happened still stayed on the acer screen, i have also tried unplugging everything form the motherboard except the fans to see if it would show an error but still just the acer screen came on with a messaege no signal input before the acer logo stayed on. please can you help me, many thanks paul

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  • 3 more comments 
  • drummerpaul May 31, 2008

    hi, thankyou for your time and help! the coolant seems to be very minimal ( the grey paste at the back of the fan on the back of the processor) does this mean that the processor is possibly fried. shall i apply more paste? thankyou

  • drummerpaul May 31, 2008

    thankyou, I will try and source some coolant first then! many thanks

  • drummerpaul Jun 01, 2008

    HI, I have tried more coolant but it didnt seem to work, i have also tried resetting the c,mos by removing the jumper and reinserting, still just have the same acer screen.

  • drummerpaul Jun 01, 2008

    thankyou for getting back to me! today i tried removing the jumper (c,mos)from terninal 1 and 2 and installed on two and three then back on one and two while switched off, still nothing, i also tried installing the backup disk, the disk drive was working fine, but still nothing, i removed the ram chip and then switched on the pc, the pc started beeping once every 3 or 4 seconds, is this normal with no ram chip installed? thanks

  • drummerpaul Jun 02, 2008

    HI, THANKS! is it possible that it could be that windows are corrupt?



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Check the coolant between the CPU and the cooler to ensure it's not simply over heated.

Posted on May 31, 2008

  • 3 more comments 
  • Steven Burn
    Steven Burn May 31, 2008

    I'd recommend cleaning whats there with a paper towel to get rid of it, then replacing it with fresh coolant.

    It's possible that the CPU is fried, but I wouldn't say with any certainty until the coolant has been replaced and the fans etc, checked.

  • Steven Burn
    Steven Burn May 31, 2008

    No problem.

    You can pick up the coolant at most PC stores for a couple of quid.

  • Steven Burn
    Steven Burn Jun 01, 2008

    In that case, and unfortunately, it's only been narrowed down to one of two things;

    1. A faulty motherboard
    2. A faulty drive/RAM

    To check the drives, disconnect the power and IDE cables from the CD drive(s), and try booting. Then further, try unplugging the hard drive (with the CD drives plugged back in).

    If the problem persists after checking the drives, remove the RAM chip (if you've got more than one, only remove one chip at a time to rule out a faulty RAM module).

  • Steven Burn
    Steven Burn Jun 01, 2008

    Thats normal with no RAM chip, yes. Short of a secondary RAM chip and assuming all drives have been ruled out, I'm 95% certain the problem is with your board and would subsequently recommend replacing it.

  • Steven Burn
    Steven Burn Jun 02, 2008

    It's very unlikely (specifically because you mentioned it's not getting further than the initial Acer loading screen). However, computers will be computers, so nothing is ever definitive (if you'd like to try a repair or re-install of Windows to rule that out, the more the better (tis always best to be thorough ;o) )).



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