...because we can't all be on the bleeding edge...





S455I EISA

ALPHA RESEARCH CORPORATION

S455I EISA

Data bus:

32-bit, EISA

Size:

Half-length, full-height card

Hard drive supported:

IDE (AT) interface drives (4)

Floppy drives supported:

360KB, 720KB, 1.2MB, or 1.44MB (2)

CONNECTIONS

Function

Location

IDE drive interface (Primary)

CN1

IDE drive interface (Secondary)

CN2

Floppy drive interface

CN3

Hard Drive activity LED

JP1

Speaker

JP2

USER CONFIGURABLE SETTINGS

Function

Location

Setting

IDE Bus 1 (CN1) resistors open

JDR0

open

 

IDE Bus 1 (CN1) resistors shorted

JDR0

closed

IDE Bus 2 (CN2) resistors open

JDR1

open

 

IDE Bus 2 (CN2) resistors shorted

JDR1

closed

MISCELLANEOUS TECHNICAL NOTES

When using this controller, the system will see the drives attached to each connector as a single drive. i.e.: if you have two 100MB drives attached to CN1 the system will see one 200MB drive. However, if have two drives you would like to be recognize individually, you may attach one to CN1 and the other to CN2.

Closing Jumpers JDR0 and JDR1, shorting the resistors on the IDE buses, helps to eliminated drive incompatibility caused by different noise filtration methods.

This controller supports 256KB, 1MB, or 4MB fast page mode SIMM's, 80nsec or faster. Both sockets of a bank must be filled with the same size SIMM's; and at least one bank must be filled for proper operation.