the only way i know to get scsi to see a ide cf card is this:
http://www.google.co.uk/url?sa=t&rct...VqY-g2EwmhiXxw
and well,there not cheap.
i think you would be better off looking for a scsi drive(50 pin)
you could try to check the power supply for the gvp to make sure its putting out the right voltages(although i dont think its that)and check all the connectors for power and side connector are clean.