Question about Dell OptiPlex GX520 PC Desktop

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Keyboard error My DELL GX520 doesn't go further during boot-up and gives a keyboard error. SInce it has only a USB connection, I can't go into the bios and check things. The keyboard is OK, but it looks like the USB does not work anymore.. Could it be that the USB's for mouse and keyboard can be disabled from the bios ? I hope the motherboard hans't died...

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  • Jos Nov 23, 2008

    Hi Bibleman01, thanks for the feedback, but the problem rises during the startup from the BIOS, before any OS is loaded. There are 2 USB ports which should support the keyboard without any drivers. Those 2 are located near the network connection.
    Thing is, I even can't go into the BIOS and/or respond to the standard BIOS request "Presss F1 to continue or F2 to enter SETUP". I did a reset of the CMOS, but that also didn't solve the problem..


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Have you tried it in a different usb port. or are all the ports not working. Because Dell usb ports have drivers and if the drivers don't work then neither is your keyboard and mouse
Go here and use the 6th one down

http://search.dell.com/results.aspx?s=gen&c=us&l=en&cs=&k=usb+drivers+&cat=sup&x=14&y=9

Posted on Nov 22, 2008

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I understand that your Isue is "After installing the HP All-in-One software, the computer stops responding during start up when the All-in-One is connected and turned on. The computer will start correctly if the All-in-One is not connected or is turned off."

SOLUTION:

This problem can be resolved by changing the "USB Emulation" in the Computer BIOS settings.
If you are using a DELL Computer just follow my instruction below.

Caution:
If you are using a USB keyboard, do not disable “USB Emulation”, “USB Keyboard Support”, or “USB Legacy Support”. If the settings must be disabled, use a PS/2 keyboard

Changing the BIOS on a Dell Dimension computer
Follow the steps below to turn off the ability to boot from USB devices but still support a USB keyboard while starting. Contact Dell for assistance if necessary.
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  3. Start the computer. When the Dell logo displays, press the F2 key to enter the System Setup (BIOS) program. If the Windows screen displays, wait for the computer to finish starting up, shut it down, and then try again.
  4. Press the Down Arrow key to highlight Integrated Devices (Legacy Select Options).
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Changing the BIOS on a Dell Laptop PC.
Follow the steps below to turn off the ability to boot from USB devices but still support a USB keyboard while starting. Contact Dell for assistance if necessary.
  1. Shut down the portable.
  2. Unplug all USB devices including USB keyboards.
  3. Start the laptop. When the Dell logo displays, press the F2 key to enter the System Setup (BIOS) program. If the Windows screen displays, wait for the computer to finish starting up, shut it down, and then try again.
  4. Press and hold the ALT key while tapping the P key until a screen displays that includes the words “ USB Emulation ”.
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