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09.010 Sometimes the 3.5" drives on my GS do not function correctly. This started after adding a SCSI interface card. Is there a fix?
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This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
09.010 Sometimes the 3.5" drives on my GS do not function correctly. This started after adding a SCSI interface card. Is there a fix?
This problem seems to crop up from time to time, especially when a SCSI
interface is present and when no device is connected and recognized on the SCSI
chain. (For example, you may have only a Zip Drive connected to your SCSI
interface; but, it is not powered ON or no Zip disk is inserted.)
Evidently, something (e.g. a register or softswitch) involved in the usual
GS power-up routine relating to on-line devices gets messed up. Arranging to
have some active, on-line device on the SCSI chain (or removing the SCSI card)
seems to help reduce frequency of the problem.
A nearly certain fix is inserting a 3.5" diskette into Drive 1 before or
just after power-up. This usually forces recognition of 3.5" diskette drives
and enables correct functioning.
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