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TITLE
Adaptec 274x and 284x SCSI Adaptor OPENSTEP Driver Overview
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Article ID:
Created:
Modified:
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72178
12/14/98
12/14/98
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TOPIC
DISCUSSION
Driver:
Adaptec 274x and 284x family
Last Update:
December 18, 1997
Availability Information
A version of this driver is on the OPENSTEP CD-ROM
No updated versions of this driver are available
Driver Name / Installer .pkg:
Adaptec2740
Driver Type:
SCSI
Driver Scope:
Product Family
Supported Components:
Adaptec AIC-7770
PC Bus / Interface Supported by Driver*:
EISA, VL-Bus
General Overview notes:
The Adaptec 274x series driver is designed to support the 274x series of EISA SCSI adapters and the 284x series of VL-Bus SCSI adapters. The 2(7,8)42 versions include a floppy controller.
Supported Products / Add-on Adapters:
Adaptec 2740 (EISA) - not tested but should work
Adaptec 2740T (EISA)
Adaptec 2840 (VLB)
Special Features of Driver / Driver Notes:
The 274x is available in a 'T' version that includes two SCSI channels, both channels are supported by this driver.
The onboard floppy controller available on the 2(7,8)42 cards is not supported.
SCSI Driver Details
Supported Connectors:
50-pin Header (Internal SCSI), 50-pin High Density (SCSI-2), 68-pin High Density (Wide SCSI)
Access Mode:
DMA
Attributes**:
SCSI-2
Cache Size Supported**:
N/A
Known Problems
The 284x driver uses port 4c00 by default. You must set the DIP switches on your 284x card to use this port. The correct settings are:
sw1:on
sw2:on
sw3:off
sw4:off
The 274x driver uses port 0x4c88 by default.
Driver Version Notes
4.01 - Released on OPENSTEP 4.0 User CD-ROM
* - Indicates information that is inclusive of the entire capability of this driver. Not all devices supported by this driver may include all features listed.
Product Vendor
Adaptec Inc.
691 South Milpitas Blvd.
Milpitas, CA 95035
USA
+1 (408) 945 8600 international phone number
+1 (800) 959 7274 USA toll-free (customer support) phone
+1 (408) 945 7727 bulletin board system
+1 (408) 957 7150 faxback system
+1 (408) 262 2533 fax
WWW:
http://www.adaptec.com/
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