Configuration Diskette And Installation Guide (Asw-C174) - Adaptec AHA-1740A Technical Reference Manual

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mode dictates the software manager revision which can support the board, but has
no effect on the SCSI or host bus hardware connections.
Standard Mode allows software drivers written for the AHA-1540 or AHA-1640 fami-
lies to run unaltered on the AHA-1740 family. There is no performance penalty for
this on the EISA bus. The AHA-1740A/1742A/1744 still performs 32-bit transfers at
speeds up to 33 MBytes/second.
Enhanced Mode allows the board to take advantage of a number of features which
were not available on earlier host adapters. These include:
Fast SCSI data transfer
32-bit addressing capability
Ability to access all EISA board registers
Single fast mailbox handling
Tagged queuing (SCSI)
Fully configurable SCSI bus options for each SCSI target ID

Configuration Diskette and Installation Guide (ASW-C174)

As with other EISA boards, the AHA-1740A/1742A/1744 is configured by the EISA
Configuration Utility (ECU) that came with your EISA computer. The ASW-C174
diskette contains the configuration and overlay files required by the ECU for the
AHA-1740A/1742A/1744. In addition, the ASW-C174 contains a utility for checking
the version of microcode in your AHA-1740A/1742A/1744 and for low-level formatting
of hard disks.
The AHA-1740/1744 stores microcode in an E
to it by using the adl.exe download utility included on the ASW-C174. The AHA-
1740A/1742A stores microcode in an EPROM. The A version boards do not support
the download feature.
1- 4
Note
2
PROM. You can download microcode
AHA-1740A/1742A/1744