4-18 Upgrading Your SystemCabling a SCSI controllerHard Disk DrivesYour system supports a variety of hard disk drives.The SCSI hard disk drives must use the industry standard 68 pins connector.Your system supports up to four 9 GB, 18 GB or 36 GB SCSI HDD.The IDE hard disk drives must be Ultra DMA 33 or Ultra DMA 66. Yoursystem supports up to two 10 GB, 20 GB or 30 GB IDE HDD.SCSI controllerActive terminator