Oh man, IRQ and DMA numbers, there's another set of optimizations for your boot disk. Some games would require your sound card to be on a certain IRQ, or only

Oh man, IRQ and DMA numbers, there's another set of optimizations for your boot disk. Some games would require your sound card to be on a certain IRQ, or only give a limited number of options. Of course, your other devices like your mouse, CD drive, modem or network card need interrupts too, leading to the dreaded IRQ Conflict error message. DMA channels were even more limited but thankfully fewer devices needed them and programs tended to be less picky about which ones you chose.