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Aspire L100 keeps powering off, possibly over heating cpu?

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Download and burn the ultimate boot CD(from another PC that doesn't shut down) with http://www.ultimatebootcd.com/ URL and run it on your PC. Run Prime95 for a few hours, if it fails then RMA it.

Do you have sufficient ventilation round the system?

Posted on Sep 16, 2008

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Acer aspire l100 will not boot but fans run


Try removing/disconnecting the hard drive and see if the BIOS boots up, if it does the HDD is causing the problem. Are you getting any beeping codes on start up, if so how many and hoe long in between?

Dec 06, 2011 | Acer Aspire L100 PC Desktop

1 Answer

I reset my surge protector and the computer wont power up. i think i need a new power supply. the power cord is working fine. Please let me know where i can find a power supply for the aspire...


The Acer Aspire L100 is a desktop computer powered by a special DC adapter and power cable. The computer's motherboard incorporates a fuse designed to prevent any power surges from damaging the computer. If the fuse burns out due to a power surge or for any other reason, the computer will no longer function. You can check the motherboard fuse for damage yourself, then take it to a trained technician for replacement if needed

Shut down the Acer Aspire L100 and turn the tower around.

Press the "On/Off" button on the front of the tower. If the computer will not boot and the fan does not turn on, the fuse may be burned out.

Unplug the power cord from the rear of the tower

Turn the tower on its side and remove the Phillips-head screws connecting the back panel to the Aspire L100's cabinet.

Pull out the motherboard assembly gently from the back of the cabinet. The internal fuse is located on the motherboard behind the DC power jack, which is to the right of the monitor jack

Let me know if this helped..



  • 2 Press the "On/Off" button on the front of the tower. If the computer will not boot and the fan does not turn on, the fuse may be burned out.
  • 3 Unplug the power cord from the rear of the tower.
  • 4 Turn the tower on its side and remove the Phillips-head screws connecting the back panel to the Aspire L100's cabinet.
  • 5 Pull out the motherboard assembly gently from the back of the cabinet. The internal fuse is located on the motherboard behind the DC power jack, which is to the right of the monitor jack.

  • Read more: Fuse Location on Acer Aspire L100 ' eHow.co.uk http://www.ehow.co.uk/how_7815704_fuse-location-acer-aspire-l100.html#ixzz1XUVwmxuA

  • 3 Unplug the power cord from the rear of the tower.
  • 4 Turn the tower on its side and remove the Phillips-head screws connecting the back panel to the Aspire L100's cabinet.
  • 5 Pull out the motherboard assembly gently from the back of the cabinet. The internal fuse is located on the motherboard behind the DC power jack, which is to the right of the monitor jack.

  • Read more: Fuse Location on Acer Aspire L100 ' eHow.co.uk http://www.ehow.co.uk/how_7815704_fuse-location-acer-aspire-l100.html#ixzz1XUVwmxuA

    Sep 09, 2011 | Acer Aspire L100 PC Desktop

    1 Answer

    Keep heat up mother bord delay opening program


    Hi,

    Good day. In response to your problem i suggest for you to get a better heat sink. There is a big possibility that its the heat sink or the fan in your computer is not doing your job. You can also try to clean the motherboard from dust by using a vacuum. Make sure that the room is not too hot for your computer or near any device that emits heat. Hope this info help you a bit. Have a great day.

    May 22, 2011 | Acer Aspire L100 PC Desktop

    1 Answer

    Computer wont start acer aspire L-100


    CPU overheated? When you cool it down it will start. You can check whether there are lots of dust on the CPU fan and the chase of the machine, they might block the air flow and overheat the CPU.

    Jul 08, 2010 | Acer Aspire L100 PC Desktop

    1 Answer

    My Acer Aspire L100 PC Desktop won't start.. when i press power button it only flash LED light jus one time but no HDD sound or CDROM working sound. only CPU fan works thas bout it...Any help? pls


    Do you see anything on the screen?

    Try the following things:
    1. Try starting the computer with only the battery
    2. Remove the battery and try booting with only the power adapter
    3. Try removing and replacing your memory
    Could be a bad power supply or bad battery. After you try the above steps, report your results.

    May 22, 2010 | Acer Aspire L100 PC Desktop

    1 Answer

    Ok....do you think its worth changing the fan before i reinstall the operating system. as soon as i turn on the heat sinkk starts to get hot. the battery for the motherboard was alsoo completely dead, soo...


    yea those are the disks i'm talking about, and if your cpu fan is not working then i would get that replaced today if possible otherwise you will damage your processor and have to purchase a new one

    Nov 18, 2009 | Acer Aspire L100 PC Desktop

    1 Answer

    Thanks for the response to my Acer L100. have checked the cables and they are fine. have noticed the fan doesn't start up when the computer is switched on....could this be the problem???


    The CPU fan should turn on when the PC is powered on, and then it usually slows down until the workload on the processor causes it to heat up, then the fan spins faster, it might also be a power supply issue, but if your able to boot and its giving you messages and not shutting down then you should re-install the operating system.

    Nov 18, 2009 | Acer Aspire L100 PC Desktop

    2 Answers

    No power when press the button, power plug is good?


    Good day sir/ma'am, chances are that your power supply box is the faulty part. But to make sure let us test your power supply box. here are the steps:
    1. PC is off, open the side panels of the CPU, disconnect the 20(or 24) pin molex connector from the motherboard.
    2. Get a piece of jumper wire, about 4 inches and splice the ends.
    3. On the molex connector, locate the green wire, then using the jumper wire, short it with the black wire (there are lots of black wires there).
    4. look at the exhaust fan, at this point it should be spinning (good). if not here are the other possible outcome: (1) the fan did not spin. replace the power supply box with a new one. (2) the fan spins momentarily then stops, this condition only occur once. Its either your power supply has no load (intermittent symptoms), or the switching controller stage part is faulty. Better buy a new one than have a headache. (3) blows a fuse. replace the entire box.
    If you have a good power supply, install it on your CPU and test.

    Oct 28, 2009 | Acer Aspire L100 PC Desktop

    1 Answer

    Acer Aspire L100 overheating


    You could try a new cpu fan and heatsink. They are normally inexpensive. if this does not work make sure all the case fans are working and check to see if your ram is overheating

    Dec 22, 2008 | Acer Aspire L100 PC Desktop

    1 Answer

    L100 heat problem


    We purchased 10 of these for our dealers since most of them have space constrains. I found that I had to reapply the thermal compound on just about all of them, since they all had a problem of spinning up the fan and then shutting down.

    What you do is get some MX-2 Thermal Compound
    --> Open the case with the one screw on the back
    --> Once open, undo the 4 screws that hold down the heatsink - the copper looking thing - the fans stay in the case. The screws will NOT COME OUT. Just leave them attached to the heatsink.
    --> Take some cleaning alcohol and put some on some cloth. Then use the cloth to wipe the old thermal compound (grey goop) off the CPU and the Heatsink.
    --> Apply a couple "drops" of the MX-2 on the CPU and use a credit card to spread is it over the CPU. NOT TOO THICK. In fact, I found a complete coverage, while trying to get it as thin as possible seems to get the best cooling effect.
    --> Re-apply the heatsink by screwing in the screws one by one, switching to the next screw which is diagonal to the previous one. This way even pressure is applied to the headsink.
    --> Close the case and refit the case screw.

    All of our computers have worked great after that fix. Hope it works for you.

    Nov 06, 2008 | Acer Aspire L100 PC Desktop

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