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Acer 81945ae motherboard

Computer beeps when I connect the power cable to the tower?what is the cause of this

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Read the manual, the sequence of the beebs tell you what is wrong

Posted on Apr 20, 2014

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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

    My acer aspire one notebook laptop when I push the power button comes on and shows the start up screen and then the screen instantly goes to this black screen with a little white line blinking in the top...


    Perhaps you've built a computer and are turning it on for the first time, or you've owned this computer for awhile. Either way, you may encounter an issue where the monitor shows a black screen and the computer is beeping. There are several causes and solutions for this problem.

    1.Refer to your motherboard manual, since the motherboard is the beeping device. These beeps are like Morse code, and each "beep code" is explained in the manual. Common beep codes include not having a monitor or keyboard properly connected; not having a CPU fan connected, or not attaching internal power cables to the video card. This black-screen-and-beeping issue is most common with newly-assembled computers.
    2.Check external cables to make sure they're properly connected. The most important external connections to check are the monitor's signal cable and the keyboard. If your monitor cable looks damaged or kinked, try replacing it with a spare. If your keyboard's cable looks frayed, try a spare keyboard.

    Also, a PS/2 keyboard plug (round, with holes in it, about the diameter of a finger) is often color-coded purple. If you have plugged it into the green port in the back of the computer (for PS/2 mice) switch it to the other one. If there is no color coding, the proper port should have a small, embossed icon of a keyboard on the back of the computer. If it does not, refer to your motherboard manual for the correct port. If all else fails, try a spare keyboard, preferably USB (Universal Serial Bus), which can be plugged into any USB port on the back of the computer.
    3.Check for additional motherboard power connections. Yours may require multiple cables attached from the power supply. There is the standard wide plug, which you know is connected properly because your motherboard is beeping. However, there may also be an additional, four-pin cable that connects elsewhere on the motherboard. Check the board's manual to make sure it has all the power connections it needs.
    4.Check your internal cables. Make sure that the CPU fan is plugged into the motherboard header nearby. Without that, the CPU fan will not spin, and the motherboard may detect this lack of connection and produce a beep code. Your video card also may have one or two internal power plugs that need to be attached to the power supply's cables. These cables have unique ends on them, similar in shape to a USB plug. Refer to the case or video card documentation if need be. If those cables are not attached, your motherboard may refuse to boot the system.

    Your video card may be faulty. If this is a new card, it may have arrived to you broken, in which case you will probably need to request an RMA (Return to Manufacturer Authorization) to receive a replacement. If this card was previously working for you in this system, you can contact its manufacturer yourself to receive a replacement, if the device is still under warranty.

    I hope you find it very helpful.

    Aug 25, 2011 | Acer Aspire One PC Notebook

    1 Answer

    When my computer is turned on green light is not display and the screen does not display anything than what should i do ??


    If the green light is not glowing in the tower check the status of the light on the back of the tower where the power cable goes.
    If there is no light in the back of the tower than it might be an issue with the wall jack or surge protector so try connecting the power cable to a different jack and see what happens. if it remains the same than try with a different power cable and check.

    If the light is glowing on the back of the tower but there is no light in the front than it may happen the power supply of the pc might have failed. try to open the tower reseat the RAM cards, reseat the Harddrive cables as wells as try to reseat the cables of the power supply. if the light on the back flickers and goes away than it might be a faulty motherboard. So do a Motherboard test by turning on the pc without the RAM cards, if the motherboard is fine you will hear beeping noise if not than motherboard is faulty.

    Aug 02, 2010 | Smart Modular SV3170A

    1 Answer

    Asus mb wl300 amd 64 4000+ won't boot to bios.


    To make sure it isn't anything else, pull all cards, and drive cables from the board so the only thing left connected is the power connectors to the motherboard, the speaker, and the power button. Pull all the ram cards.

    Now power up the computer. If you hear a series of beeps then the computer recognizes there is no ram on the board. At this point I would take the power supply out and have it tested. If you do not hear a series of beeps I would still have the power supply tested as it could be the 12v is fine but the 5 and 3.3 volt side is bad.

    If power supply tests good then I would replace both the motherboard and processor. You take a risk of burning a new processor if it's the motherboard causing the problems.

    Jan 08, 2010 | ASUS Computers & Internet

    1 Answer

    Acer Pc Tower Extensa E210, p4p800vm motherboard connection probl


    So I have found the answer myself ;o)
    I removed the front panel of the computer, behind the panel the wires were labelled, I connected the cables to the connectors that I required and connected them to the MoBo, works like a dream!

    Jan 05, 2010 | Acer Computers & Internet

    1 Answer

    How do iknow if my motherboard is bad on my computer


    Usually, by a process of elimination.

    First, inspect the motherboard -- all those round towers are capacitors; any that are leaking (brown stuff) are bad news; any towers bulging at the top, instead of flat, are bad news.

    If you turn the computer on, and the fans start to spin, and the disk-drive makes a bit of noise for a short time, then the power-supply probably is NOT the problem.

    If you turn it on, and you get multiple "beeps", then it's either the RAM or the video-card.

    If you turn it on, and nothing happens, it's the CPU or the RAM or the power-supply.

    Disconnect the disk-drive, the CD-drive, the floppy-drive, and all USB devices. If you then turn it on, and you don't get a single "beep",
    it's the motherboard or RAM or power-supply.

    Test the RAM in another computer.

    Temporarily connect a different power-supply to your computer;
    if it starts properly, it's your power-supply.

    Dec 05, 2009 | Acer Computers & Internet

    2 Answers

    WHEN I PRESS POWER BUTTON NOTHING HAPPENS


    Disconnect the Power cable / A/c adapter/Battery from computer.
    Disconnect External peripherials.
    Hold down the power button on the computer for 10 seconds.
    Reconnect the power cable or A/c adapter and battery or the computer
    Try to turn on the computer
    check for Led's on the computer
    If still no display ,shut down the computer,disconnect power cable.
    Open the computer tower,remove memory modules,reconnect power cable and turn on the computer.If you get a beeping sound after turning on you should be getting beeping sound suggesting the mother board is not bad.Turn on the computer and disconnect power cable from computer.
    Reseat 1 memory at a time if you have 2 memory module or if single memory module reseat in different memory slot,swap memory module.
    Reconnect the power cable and turn on the computer if it boots to desktop possible issue with 1 of the memory module.
    Disconnect the harddrive ide cable from the harddrive .Turn on the computer.
    If still unable to power on .Shutdown the computer and disconnect power cable.Remove video card,sound card ,modem card if any .Connect just the vga cable from monitor to the integrated video port.
    Connect power cable and turn on the computer.
    If computer turns on possible issue with one of PCI or PCI express card.
    If still unable to power on.Disconnect the power connector pin from the motherboard and reconnect it back.Turn on the computer check power power led on motherboard,also check if the processor fan is spinning. if no go then issue with motherboard. GOOD Luck.!!

    Aug 27, 2009 | Insignia D400a PC Desktop

    1 Answer

    No powering on


    Resolution:
    Disconnect the Power cable / A/c adapter/Battery from computer.
    Disconnect External peripherials.
    Hold down the power button on the computer for 10 seconds.
    Reconnect the power cable or A/c adapter and battery or the computer
    Try to turn on the computer
    check for Led's on the computer
    If still no display ,shut down the computer,disconnect power cable.
    Open the computer tower,remove memory modules,reconnect power cable and turn on the computer.If you get a beeping sound after turning on you should be getting beeping sound suggesting the mother board is not bad.Turn on the computer and disconnect power cable from computer.
    Reseat 1 memory at a time if you have 2 memory module or if single memory module reseat in different memory slot,swap memory module.
    Reconnect the power cable and turn on the computer if it boots to desktop possible issue with 1 of the memory module.
    Disconnect the harddrive ide cable from the harddrive .Turn on the computer.
    If still unable to power on .Shutdown the computer and disconnect power cable.Remove video card,sound card ,modem card if any .Connect just the vga cable from monitor to the integrated video port.
    Connect power cable and turn on the computer.
    If computer turns on possible issue with one of PCI or PCI express card.
    If still unable to power on.Disconnect the power connector pin from the motherboard and reconnect it back.Turn on the computer check power power led on motherboard,also check if the processor fan is spinning. if no go then issue with motherboard.

    Aug 24, 2009 | Dell Computers & Internet

    1 Answer

    No booting


    did u chk the power cable to monitor ?
    replace the power cable wd tht of the tower or cpu if cpu glows then ur monitor neds to be repired

    May 22, 2008 | Intel Motherboard

    1 Answer

    Aspire? T180


    If the PC does not to any beep then usually is a problem with the motherboard.

    If the PC does a certain number of beeps on startup, then tell me how many beeps to troubleshoot the problem.

    If the computer does single beep on startup as usual, then may be the monitor, monitor cable or graphic adapter.

    Simple thing that you can do it yourself is disconnecting computer power cable from power outlet for 15 -12 mins. ac connect it back, this will solve troubles caused by electrostatic charges.
    Also check video cable connections to monitor.
    If you have another computer also test the monitor on other computer.
    If the main unit is not booting (CD drives and internal fans often start up even if the Motherboard is blown). Then yo need to open the pc and test component inside.
    If you have practice in fixing hardware you can start removing RAM modules and testing them, then buy a tester board for the MB and do a diagnostic test on motherboard.
    Other options are taking PC to service or getting a new PC.
    If the PC is still under guarantee, then contact Acer to validate your guarantee and get the machine to an authorised service centre.

    Regards

    Mar 16, 2008 | Acer Aspire™ T180 PC Desktop

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