Intel 5800/120Ld manual Standard Configuration, System Cabling A-3

Standard Configuration

Your system is cabled using a single channel on-board IDE Controller and dual channel on-board Adaptec 7899 SCSI Controller.

The on-board IDE controller supports the standard internally mounted CD-ROM as its master device. If only one device is on a channel connector it must be set as the master device.

The AIC 7899 contains two independent SCSI channels that share a single PCI bus master interface. Each channel is capable of operations using either 8- or 16-bit SCSI providing 160 MB/s (Ultra-160/M) or 80 MB/s (Wide Ultra2) throughput. If your system includes the hot-swap hard disk drive bay, channel A attaches to an Ultra-160/M SCSI backplane that supports up to six 160/M SCA drives. If your system includes the standard hard disk drive bay, channel A attaches directly to a maximum of four 160/M non-hot-swap drives. Controller B can be used to support SCSI devices in the removable media bays. A 68 pin to 50 pin converter is also available to be used when installing SCSI narrow devices.

A 3.5-inch diskette drive is also installed in all systems and interfaces separately to the system board.

Figure A-1 illustrates a system that includes the hot-swap hard disk drive bay. Referring to the Figure A-1 below, a 68-pin Ultra-160/M SCSI interface cable (K) is connected to the SCSI connector (J) on the middle right edge of the system board. This cable connects to the rear of the hard disk drive's SCSI backplane (L).

The IDE interface cable (E) is connected to the IDE connector (D) towards the middle right edge of the system board. This cable connects to the rear of the internally mounted CD-ROM drive (F).

Optional internally mounted SCSI removable media devices (I) may be connected to the SCSI controller connector (G).

Figure A-2 illustrates a system that includes the standard hard disk drive bay. This figure is identical to Figure A-1 with the exception that the 68-pin Ultra-160/M SCSI interface cable (K) connects to each drive (L) in the standard drive bay.

System Cabling A-3