Question about Acer Aspire L100-UD360A PC Desktop

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Fan runs but computer doesn't start when I hit power button, it takes about 8 times before it kicks in and you see hard sdisk light start, then it starts up OK.

Fan runs when you hit power button, but computer doesnt start all the time, it takes about 8 times of shutting off then trying again before it starts.

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  • Dick
    Dick May 11, 2010

    This usually indicates a hardware problem. Reseat any components you can (especially memory and video card), blow all the dust from the system. If that does not fix it test your power supply or try a known good one in your computer. If that still does not work try removing everything except one memory module and the video card, see if it will boot then. If still no luck your motherboard is probably bad.

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  • 7 Answers

You have problem with alimentation source, try to make a test with another alimentation source !
rate me

Posted on May 30, 2009

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My Compaq nc6000 laptop sometimes wont turn on. Ill hit the power button the fan will kick on for about 7seconds or so and the lightning bolt symbol will stay lit. normally the hard drive lights, power...


old old old laptops, with windows 2000 or XP, (doomed for sure there both are VIRUS MAGNETS AND ZERO SUPPORT NOW)
a circa 2006 LT. (3+ years before W7 sold)
now the power fails. (could be a blessing....)

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step 1 is does it run with the battery out, main battery huge. does it?

click Laptops black screens of deathhh here.

http://pcdied.com/black-screen.html


windows can freeze for many reasons, 1000s.
but is 2, in truth corruption or power loss.

you push the power button, battery out.
you hear fans,see lights but vastly more important
are the BIOS messages on the screen.
on my HP's power on, battery out. line cord in AC jack and power pack connected
we push power, and the screen always shows
"hit ESC to setup BIOS"
or some other key on OLD DOGS.
it must
if not you have no power. easy no?
if this works and the hot key ESC (0r your prompted )
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the HDD and its corrupted OS.

we then in a real shop boot to live windows PE stick or CD or Linux CD. live.
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When I push the power button, the power light stays amber.


read the service manual online
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No boot No fan noise no display but lights come on


Somethings has happened to your motherboard, CPU and/or hard drive somewhere along the line if it wont power up when you hit the power button and this would explain the reason for no activity. When a motherboard fails, no activity will happen at all, so Im putting my money on your motherboard being defect so take it in for a service and you may have to buy a new laptop since repairs can be costly.

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Computer won't wake up


ok, there could have been a graphics issue in the bios caused by the windows graphics drivers, heres what you could try........... remove the power cord from the back of the machine, remove the side panel to allow access to the motherboard, you will see a battery! take it out for 10 mins and push the on/off button a couple of times, this will drain any remaing power from the motherboard, after 10 mins the CMOS should have cleared so you can replace the battery, plug in the power and turn the machine on hopefully you'll get a signal

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1 Answer

When I hit power button on computer, power light doesn't come on...and the fan kicks on, but nothing else happens. nothing shows up on monitor except the test screen with 3 colors...the computer doesn't...


THis sounds like a power supply issue.. I had a similar issue with mine. my fan would kick on for about 2 seconds then shut off.
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The power light keeps flashing orange


I had my Optiplex GX520 at work shut down abruptly every time I turned it on it in the morning. This would always happen within the first 30 minutes. I would then get the flashing amber light. After starting the PC again, it would stay on all day (over 8 hours) without shutting down again. I found that the power supply was over-heating.

Two things need to be done. First, in order to get the amber light to stop flashing, un-plug the computer from the wall for 30 seconds then plug it back in. OR hold down the power button for 10 seconds or so. The light should stop flashing. Then press the power button again and the PC should start.

But why did it abruptly shut down in the first place? The power supply has a fan-speed-control circuit in it to keep it running slow and quiet when the power supply is cool. It gives the power supply lower voltage when the power supply is cold and higher voltage as the power supply gets warmer. This circuit either is not working correctly or the fan getting sticky over the years and needing more voltage to get it moving when it is cold. I found that the fan was not starting at all and causing the power supply to over-heat.


To keep the fan moving at full speed, I cut the wire to it and wired it to the +12v output directly. Not the fan goes at full speed all the time. And yes, it is nosier. But at work it doesn’t matter.

The best solution would be to just get another power supply from Dell if possible. Or buy a +12v, 70mm fan from Digi-Key and replace the original.

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Power ON/ nothing on screen-


Hi,
enter the bios setup, if you can boot the computer/laptop. Usually F2 on bootup, it will say entering Setup.
Then scroll through the pages to see if your hard-drive is recognised by the system.
Mike @ Compurepair.

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