ok here is the story i have a tyan 2400 mother board with onboard scsi the manual can be located here ftp://ftp.tyan.com/manuals/thunder/m_s2257_110.pdf

i just purchased a 10000 rpm seagate scsi drive model # ST118202LC
the manual can be found here http://seagate.com/support/disc/manuals/scsi/29260b.pdf
and the instll guide here http://seagate.com/support/disc/iguides/scsi/29250a.pdf

ok here is the problem this drive has an 80 pin scsi connector and my motherboard has 2 68 pin connnectors and a 50 pin connnector. So i guess i need to buy a 68 to 80 pin scsi cable.
but whats more the scsi drive itself has no standard 4 pin power connector just the scsi connector and a cople rows of jumpers.
does this drive get its power throgh the scsi cable? what the hell?
also the manual shows a 4 pin power connector on the drive that simply isn't there.

i am kinda confused to say the least and help thoughts or ideas would be great

You need to get yourself an adapter to go on the end of the 68 pin cable. The adapter also has a socket for a standard 4-pin power connector and the whole thing then plugs onto the 80-pin connection on the drive.

You've got an SCA drive which is designed for hot-swapping - in the UK the adapters are fairly cheap (I think I paid about 10UKP for one over a year ago)

Long link (one line):-

http://www1.rswww.com/cgi-bin/bv/browse/...;prodoid=316289

Pictures there should give you an idea

yeah i found an adapter for the drive for $7 now the only other thing i need to know about is termination. i am going to buy a 80 to 68 pin adaptor and a 3 connector 68 pin scsi cable. do i need to buy a terminator to put on the empty connector on the cable?

That kind of depends on the drive. If you look at the piccies you can see some jumper pins on the right, they let you do what you'd normally do on the back of the drive.

If the drive doesn't need active termination they'll do. If your drive does need it, get a terminated cable. E.G. used to have a Quantum Atlas 10K which required a 68pin LVD cable - that came with a terminator automatically. I suppose to be safe might as well get a terminated cable - I've not checked out the links you supplied but I'd guess the seagate will have similar requirements to my old Atlas.