CDrom not detected in BIOS

By yudefender
Jul 28, 2007
  1. I have old computer Compaq Deskpro PII 450 Mhz with integrated sound card Ess Audiodrive (not working), and CDrom (working). After I plug in PnP Sound Card ess1868 i finally got sound but I lost CDrom. Bios cannot detect my cdrom anymore. When I plug out my PNP sound card cdrom is detected just fine.

    What can I do to solve my problem?

    Thanks in advanced.
  2. fastco

    fastco TS Booster Posts: 1,122

  3. yudefender

    yudefender TS Rookie Topic Starter

    Windows xp. But I think that this problem must be solved at bios level.
  4. poertner_1274

    poertner_1274 secroF laicepS topShceT Posts: 4,172

  5. yudefender

    yudefender TS Rookie Topic Starter

    I set it to CS. All hardware are seto to autodetected. I don't have option to set it manual. When I plug soundcard i get ide drives screen sith this information

    primary slave not installed
    secondary master not installed
    secondary slave not installed

    and when I plug out the sound card, cdrom is detected (but then i don't have sound)

    secondary master atapi cdrom
  6. Liquidlen

    Liquidlen TechSpot Paladin Posts: 1,094

    First Chang the jumpers on the drives to their actual position eg. Master/Slave ; CS can cause problems.
    Next did you confirm Plug and Play sound card's compatibility with your older MB's bios ?
  7. yudefender

    yudefender TS Rookie Topic Starter

    Onboard soundcard is disabled and I plug in ess1968 Isa PnP sound card. I also remove modem. When I plug in soundcard CDrom doesn't work again. (Bios cannot detect it, and also windows cannot detect cdrom). I try to manual install cdrom in windows and i have no success.
    SOundcard is OK because it works but then i don't have cdrom.

    I try all possible combination with jumpers and still nothing
    CDrom only work if I remove soundcard.
  8. Liquidlen

    Liquidlen TechSpot Paladin Posts: 1,094

    You need to check the Mb support site for compatibility with PnP . There may be a bios update that handles this as PnP was not always supported with older hardware.
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