your best bet is to check the current modem cards IRQ....maybe it is using 5 which the sound card would like to use...If that is a 60mhz, then it might not be plug & play BIOS which would cause a possible IRQ conflict between the modem and the sound card wave or midi sections....another scenario, try the sound card without the modem...if it boots, then there is a conflict.... Good Luck, Dave Olds > Tried installing an ISA sound card in a pentium 60PB computer. Removed >the old sound/modem board combo and placed a 16 bit ISA sound board in its >place. > > The machine would not boot with this new sound card(which I tested in >another computer just fine). Is there something that I forgot to do? >It never gets to the ram test upon booting.(no beeps but some data about >the bios is displayed, then freezes.) If I remove the sound card >all is well. This system has a seperate modem card which I installed >awhile back without any problems. PCBUILD maintains many useful files for download on our web site - visit our download page at: http://nospin.com/pc/files.html