Older motherboards that didn't come with onboard ports use an I/O board (input/output) to connect your hardware to the motherboard. If the CD-rom is attached to the I/O board you won't have a problem. However, in most of these systems, the CD-rom is attached to an IDE port on the sound card. In this case, you must also enable the sound card before the CD-rom will work. This is simply a matter of adding a few more lines to the infamous AUTOEXEC.BAT and CONFIG.SYS files. These statements are a bit more complicated than the cd-rom lines, but they do the same thing...enable a piece of hardware. Also, you'll have to download drivers for your specific card, as there are many different types and most drivers will not work with other types of hardware. I'll be using the Sound Blaster drivers for the example since most of you, including me:) have cards from Creative Labs. Ok, first, open the AUTOEXEC.BAT file from your bootdisk....if you read the first page, you should be this far, or at least know how to get this far. You need to add a line that tells the computer how to communicate with the card. For most Sound Blaster or compatibles, the line should look like this: SET BLASTER=A220 I5 D1 H5 P330 T6 This line sets the "environment variables" - A220 is the Input/Output address 220H D1 is the LOW DMA channel 1 I5 is the Interrupt or IRQ 5 H5 is the HIGH DMA channel 5 P330 is the MIDI port address 330H T6 is the type of SOUND BLASTER card... 6 is for Sound Blaster 16 Now save the file and open your CONFIG.SYS...
DEVICE=CTSB16.SYS /UNIT=0 /BLASTER=A:220 I:5 D:1 H:5 This runs the driver CTSB16.SYS for the hardware at the given settings. the UNIT=0 is needed for the sound card, but does not effect the cd-rom if its missing. Now, save this file. You must also add the driver CTSB16.SYS to your disk, since this line calls for it. Also, the BLASTER.DRV file is needed on your disk as well. The next order of business...jumper settings. All of the settings you added to these files must match
the jumper settings on the card:
You must physically look on the card to verify these settings. Some cards are marked with the actual settings, while others are simply numbered and you may need a user manual to decipher the jumpers. Most jumper settings or a copy of the manuals can be downloaded from the manufacturers' websites. It's also important to modify the settings in the AUTOEXEC and CONFIG files, NOT the jumpers. If you move the jumpers, the card may conflict with other hardware in your system, and wont work. So find out what settings are on your card and duplicate those settings on the Bootdisk. The settings above are default settings used by most cards, so they may be correct already...it wouldn't hurt to try the disk and see if it works.
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