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My PC randomly starts to beep continuously. I say randomly as it can start beeping at anytime, including when the computer is switched off and not being used. I can pull out the power cable and the beeping continues. However, if I pull out the LAN cable it stops. Any ideas? Thanks.

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  • David Feb 10, 2010

    Hi Mike, running Vista and the "Beep" doesn't show up. Would it be somewhere else. Thanks

  • David Feb 11, 2010

    Hi. This gets weirder. This morning the beeping started again. Computer had been off all night. After checking each connnection, I discovered that the beeping stops when the graphic card plug is removed. Take it out the beeping dies down. Put it back in the beeping comes back on. This happens regardless if the power cord is connected or not. However, if I leave the graphic card plug out for more than 10 seconds and put it back in, the beeping doesn't start again. I'll run a spare g card for awhile and see if that is the problem. But, the beeping happening without power is weird. The "Beep" option doesn't show up in Vista Premium.

  • David Feb 19, 2010

    Hi Mike. Re-seated the graphics card and changed all the power connectors and it seems to have worked. Thanks for your help.



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Try replacing the RJ45 LAN cable. It may have a short in it. Also check the metal back plate. Each opening has small 1 or 2 tabs that ground each port.
The MB's internal speaker must have power in order to beep. Since you have pulled out the power cable there can't be any Standby power to the MB which keeps the cmos battery charged while the system is off. However every RJ45 does carry a low amount of voltage through the cable. If the above doesn't help there is one other thing you can do;
Go to Device Manager and "Show Hidden Devices".
Under "Non-Plug and Play Drivers" you'll see an item named "Beep".
Disable that and the "random beeps" disappears.
Once done, of course, you can hide the hidden devices again.


Posted on Feb 08, 2010

Testimonial: "Thanks for the help."

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  • Mike Peluso
    Mike Peluso Feb 11, 2010

    For windows Vista;
    Open Device Manager by left clicking the Start button, than left clicking Control Panel, than clicking System and Maintenance, and then clicking Device Manager. If you are prompted for an administrator password or confirmation, type the password or provide confirmation if asked for. Follow the instruction from my last post. Open the link provided below for Vista;

    Hope you find this helpful!


  • Mike Peluso
    Mike Peluso Feb 12, 2010

    dverted2, here at FixYa answering questions can be troublesome.

    Every system is different. We prefer posters to include the basic hardware within their systems. This includes, operating system, motherboard model and manufactures name, add on graphics cards model number and power supply wattage. With respect to you're system. When a system boots up and one hears continues repeating beeps and their using a PCI-E or AGP graphics card that requires external power to function properly. Normally the bios sends out the repeating beep that’s telling you the graphics card needs external power connected. Make sure you're current video card is receiving the proper external power cable. (You're system beeps are being generated by the bios) The bios maintains an average of 3 to 2.5 volts DC. More than enough power for the bios to beep error’s.

  • Mike Peluso
    Mike Peluso Feb 12, 2010

    It’s possible that the power cable being used is not fully connected to the power port on the video card. Its also possible for 1 or more wires within the power cable is loose. You're power supply should have more than 1 graphics card power cable. Try another power cable.




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