I have a Tekram SCSI adapter which is only being recognized as Ultra2

dmesg> siop0 at pci0 dev 13 function 0: Symbios Logic 53c1010-33 (ultra2-wide scsi)
dmesg> siop0: using on-board RAM
dmesg> siop0: interrupting at irq 15
dmesg> scsibus0 at siop0: 16 targets, 8 luns per target

I figure this due to the fact that my motherboard only supports 33 Mhz for the PCI
slots. As you can see below my disks are Ultra3:

dmesg> siop0: target 1 using tagged queuing
dmesg> sd0 at scsibus0 target 1 lun 0: <IBM, DDYS-T18350N, S96H> SCSI3 0/direct fixed
dmesg> siop0: target 1 using 16bit transfers
dmesg> siop0: target 1 now synchronous at 40.0Mhz, offset 31
dmesg> sd0: 17501 MB, 15110 cyl, 6 head, 395 sec, 512 bytes/sect x 35843670 sectors
dmesg> siop0: target 2 using tagged queuing
dmesg> sd1 at scsibus0 target 2 lun 0: <IBM, DDYS-T18350N, S96H> SCSI3 0/direct fixed
dmesg> siop0: target 2 using 16bit transfers
dmesg> siop0: target 2 now synchronous at 40.0Mhz, offset 31
dmesg> sd1: 17501 MB, 15110 cyl, 6 head, 395 sec, 512 bytes/sect x 35843670 sectors

My question is if I get a motherboard that supports 66 Mhz PCI will it increase 
my performance to the full 80 Mhz now supported in the siop driver? Or am I 
missing the whole issue? If I have missed the whole issue, then how can I increase
read/write performance?

Thanks,
-- 
jack_morgan					j-morgan@gol.com