AHA-1540/42B INSTALLATION GUIDE HARDWARE INSTALLATION The Adaptec AHA-154XB AT-to-SCSI Host Adapter has been designed to operate as shipped in the majority of AT class computers. The Host adapter's factory default settings should remain in their original positions. The AHA-154XB is shipped with the following settings: SCSI Address 7 SCSI Parity Enabled Terminators Installed Terminator Power Supplying Synchronous Negot. Disabled DMA Channel 5 Interrupt Channel 11 AT Port Address 330h AT Bios Address DC000H, Enabled Bios Wait State 0, Disabled FD Controller Enabled (AHA-1542B) DMA Transfer Speed 5 MB/second Auto Sense Enable TO PERFORM INSTALLATION: TURN OFF POWER TO THE SYSTEM AND EXTERNAL EQUIPMENT. Remove the cover of your AT personal computer to expose the AT bus slots. Locate an unused AT expansion slot in your AT system. AT type slots can be recognized by the fact that they have 2 edge connectors, one 62-pin and the other 36 pin. Remove the corresponding system expansion slot cover by turning the screw that secures it from the top counter-clockwise. Align the AT I/O Bus Connector on the bottom of the AHA-154X into this AT slot. Use the screw from the corresponding expansion slot cover to secure the AHA-154X's bracket to your AT system frame. The SCSI bus must also be terminated correctly to ensure proper operation. The first and last physical SCSI devices on the SCSI cable must have terminators installed. All other SCSI devices must have terminators removed. The SCSI factory-installed Bus terminators on the AHA-154X should be removed if and only if you attach SCSI devices to both an internal and external cable since the internal and external cable SCSI connectors are the same SCSI Bus. Attach the SCSI Bus to the host adapter and the peripherals, using either the internal or external connector, making sure that pin 1 orientation is maintained throughout the bus. If the host adapter is not the first or the last unit on the cable, remove the SCSI terminators from the board. Reassemble the system in the reverse order. JUMPER CONFIGURATION REFERENCE Five sets of jumpers are located on the board to configure user-selectable options. Jumpers installed at the factory are shown as "(x)". Those not installed are shown as "o". It should not be necessary to change the jumper settings. J5-GENERAL CONTROL Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 o o o o o o o (x) o (x) o o o o 1 - Synchronous Transfer negotiation enable. o 2 - Diagnostics (used only at Adaptec). o 3 - SCSI Parity disable. o 4 o (x) o (x) o (x) o (x) - SCSI Address ID o 5 o o (x) (x) o o (x) (x) (SCSI disks should be o 6 o o o o (x) (x) (x) (x) set for ID 0 and 1) ---------------------------------------- 7 6 5 4 3 2 1 0 o 7 o (x) o (x) - DMA Channel Select x 8 o o (x) (x) See also jumper J9 ------------------- 7 6 5 0 o 9 o (x) o (x) o (x) - Interrupt Channel Select. x 10 o o (x) (x) o o See also jumper J9 o 11 o o o o (x) (x) --------------------------- 9 10 11 12 14 15 o 12 o (x) o (x) - DMA Transfer Speed o 13 o o (x) (x) in MB/sec. ------------------ 5.0 5.7 6.7 8.0 J6-BIOS/Auto Sense Control Pin 1 2 3 4 5 (x) o o o o 1 - BIOS Enable. 2,3,4 - Not Used. 5 - Auto Sense disable J7-ADDRESS SELECTION Pin 1 2 3 4 5 6 7 8 o (x) o o o o o o o 1 - Floppy Secondary Address select (AHA-1542B only). x 2 o (x) o (x) o (x) - AT I/O Port Address Select o 3 o o (x) (x) o o in Hexadecimal o 4 o o o o (x) (x) ---------------------------- 334 330 234 230 134 130 (Note: The host adapter bios is "hard coded" to 330H) o 5 o (x) o (x) - BIOS Wait State Select o 6 o o (x) (x) in nanoseconds ------------------ 0 100 200 300 o 7 o (x) o (x) - BIOS Base Address Select o 8 o o (x) (x) in Hexadecimal ----------------------- DC000 CC000 D8000 C8000 J8-FLOPPY DISK SELECTION (AHA-1542B only) Pin 1 2 3 4 5 6 7 8 (x) (x) o (x) o (x) o o 1 - Floppy enable 2,3 - DMA Request 2 or 3 select 4,5 - DMA ACK 2 or 3 select 6,7 - INT Request 6 or 10 select 8 - Dual Speed enable J9-DMA/INTERRUPT SELECTION Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 o (x) o o o (x) o o o o (x) o o o o 1 - DMA Request 0 Select x 2 - DMA Request 5 Select o 3 - DMA Request 6 Select o 4 - DMA Request 7 Select o 5 - DMA ACK 0 Select x 6 - DMA ACK 5 Select o 7 - DMA ACK 6 Select o 8 - DMA ACK 7 Select o 9 - INT Request 9 Select o 10 - INT Request 10 Select x 11 - INT Request 11 Select o 12 - INT Request 12 Select o 13 - INT Request 14 Select o 14 - INT Request 15 Select SOFTWARE INSTALLLATION Copy the files from the ASW-1410 Program diskette to the root directory of drive C using the MS-DOS COPY command. In order for the ASPI MS-DOS Manager files to be loaded whenever the system is booted, the CONFIG.SYS file must contain the following DEVICE=commands: DEVICE = ASPI4DOS.SYS DEVICE = ASPIDISK.SYS Using any ASCII file editor, add the individual device driver commands to an existing CONFIG.SYS file, or follow the Instructions in the MS-DOS Operations Reference Manual to create a new CONFIG.SYS file. FAILURE TO LOAD ALL THE DEVICE DRIVERS IN THE CORRECT ORDER, CAUSES THE PROGRAM TO NOT BE INSTALLED. The following command line options may be added to the device drivers in the CONFIG.SYS file. (Refer to the User's Manual for details). DEVICE = ASPI4DOS.SYS (/D) (/P) (/N) (/F) (/I). MS-DOS provides access to physical hard disk drives C and D. You must use the MS-DOS FDISK and FORMAT programs for drives C and D. DO NOT use AFDISK with drive C and D. To use a hard disk partitioned by AFDISK as drive C or D, you must use AFDISK to delete the partitions, and then use MS-DOS FDISK to create new partitions. When starting AFDISK program, it must be run from the root directory of drive C or the AFDISK directory if an AFDISK directory was created. When ready, type: AFDISK (at the DOS prompt) and press ENTER. The AFDISK utility is menu driven. Follow the directions on the screen to partition and format the selected SCSI devices. The AFDISK utility also includes an on-line HELP file which is accessed by pressing the F1 key. The AFDISK may be exited at any time without executing by pressing the ESC key and being careful to choose the selections that do not write to or format the disk. When the SCSI device(s) are successfully partitioned and formatted, reboot the system. This saves any changes made and allows use of the newly installed disk(s) or partition(s). TERMINATION The SCSI bus must be terminated correctly to ensure proper operation. The first and last physical SCSI devices on the SCSI cable must have terminators installed. All other SCSI devices must have terminators removed. The AHA- 154XB host adapter is usually the first device on the SCSI Bus and has terminators installed at the factory. (x) - SCSI Address ID o 5 o o (x) (x) o o