See here for an introduction to SCSI and its terms. Also learn how to
troubleshoot the different SCSI and SCSI RAID controllers.
Read articles regarding Serial Attached SCSI / SAS. White Papers from Adaptec
and LSI Logic on SAS.
See here for all the SCSI internal and external connectors you will encountered. Not sure what connector is on your SCSI cards, take a look here also for a list of scsi and scsi raid controller along with the type of scsi connector it uses.
See here for all the Serial-Attached SCSI internal and external connector types you will encounter. Use it to help you decide which SAS or mini-SAS (iSAS) cable you will need to use with your controller. Also included is a list of SAS / SAS RAID controller cards with their corresponding connectors.
PCI vs. PCI-X
vs. PCI-Express expansion slots