Adaptec 1540C/1542C

This is the Adaptec 1540C/1542C SCSI adapter shown. Listed below are the possible Interrupt Request Line (IRQ), Base I/O Address, Base Memory Address, and other jumper/switch configurations:

	

Setup Choice for Windows NT 3.5
Adaptec 154x

Type of External SCSI Connector
Low Density Shielded

Note1: - The 1542C requires an active terminator for proper performance

Note2: - The Denon DRD-253 is not supported for use with the Adaptec AHA-1542c.



TERMINATION	        SW1

Termination Installed	ON
Software Controlled	OFF

IO PORT	        SW2	SW3	SW4
330-333H	OFF	OFF	OFF
334-337H	ON	OFF	OFF
230-233H	OFF	ON	OFF
234-237H	ON	ON	OFF
130-133H	OFF	OFF	ON
134-137H	ON	OFF	ON
Reserved	OFF	ON	ON
Reserved	ON	ON	ON

FLOPPY SUPPORT	        SW5
Disable Floppy		ON
Enable Floppy		OFF

BIOS ADDRESS	SW6	SW7	SW8

DC000H	        OFF	OFF	OFF
D8000H	        ON	OFF	OFF
D4000H	        OFF	ON	OFF
D0000H	        ON	ON	OFF
CC000H	        OFF	OFF	ON
C8000H	        ON	OFF	ON
Reserved	OFF	ON	ON
Bios Disable	ON	ON	ON


The remaining settings for this SCSI interface card can be configured using the software supplied by the manufacturer.  
Please consult the documentation that came with your SCSI interface card or contact the manufacturer of the SCSI interface card for 
further information.

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