Question about HP Compaq Motherboard

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I cannot get com port 2 to work. I am adding the second com port the mother board is suppose to support 2. I have found the connection connected the 9 pin connector looked in the bios for port b but it is not there. AT WITS END... Its a hp compaq d330 st.

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  • Jaye Ellen Burke
    Jaye Ellen Burke May 26, 2010

    Are the Configuration switches on this second Comm port? The Mother Board does come with two Serial Ports, each with kits own connector on the back panel of the computer. Make sure you are not confusing COM1 and COM2 connectors. Do you want to add ports beyond COM2?



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The Bios selection should be in 'advanced' features that allows the selection for the com ports. If the option is greyed out, then it is not available for use.

Posted on May 27, 2010


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