Dell internal modem connection

By O negative
Jun 17, 2016
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  1. My old Latitude D820 recently suffered the purple lines of death. The video went out (dark unit).

    Luckily, I found an identical working D820 that I could swap hard drives. Problem is that this backup had a modem problem. I figured that I could fix it by swapping the modem from the dark unit. The modems are identical and the one from the dark unit was working just fine. I get a code 45 in the device manager. I get a full description of the modem. Under network connections is says "modem removed" full description(COM3). When I look at the ports under device manager I see only COM1 even after asking to see hidden devices.

    I tried to reinstall using "detect new hardware". This modem problem existed before and I never had time to figure it out. Now I really want to. I think the modem should be detected at boot-up unless it really is not plugged in. Bad motherboard/sockets?
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    It's probably a bad modem connector on the motherboard. You can try using a USB external modem
  3. O negative

    O negative TS Rookie Topic Starter Posts: 19

    I figured it out myself: The internal modem was "Off" in the BIOS. I switched to "Enable" and now I'm dialed in. (To get into BIOS on this machine, hold the F2 key during power-up.)
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    Thanks for the update, good work!

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