pcmcia scsi irq

Since I upgraded to RH6.0, suddenly my pcmcia has a different irq=3, which clashes with my ttyS1. I could not find a configuration file to set the irq for the scsi controller. Consulted the howtos but the only option mentioned is passing parameters at boot time. I would rather have a text file configuration if possible.
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If there is a text file to configure the irq PORT address etc, please let me know, with some example if possible
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MY dmesg output of bootup is included here for completeness.
IO port probe 0x1000-0x17ff; excluding 0x1220-0x122f 0x1278-0x127f 0x1300-0x131f 0x1380-0x139f 0x1620-0x162f 0x1678-0x167f 0x1700-0x171f 0x1780-0x179fcs; IO port probe 0x0100-0x04ff; excluding 0x220-0x22f 0x278-0x27f 0x378-0x39f 0x4d0-0x4d7cs; IO port probe 0x0a00-0x0aff; excluding 0xa20-0xa2f 0xa78-0xa7fcs; memory probe 0x0d0000-0x0dffff; clean.aha152x; processing commandline; okaha152x; BIOS test; passed, detected 1 controller9s0aha152x0; vital data; PORTBASE=0x340, IRQ=3, SCSI ID=7, reconnect=enabled, parity=enabled, synchronous=disabled, delay=100, extended translation=disabledaha152x; trying software interrupt, ok.