CSMK3 shouldn't have any issues and because it is sane DMA controller, current mask and max transfer values should be fine.
Most likely it is incompability with that Acard model or bad termination.
Perhaps it is possible to select async SCSI mode somehow? It is usually more stable in bad conditions. And much slower too. You can also try setting max transfer to FFFF, perhaps the adapter has some internal limits because it is technically ATAPI only.
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