I'm not sure why there are SCSI ID jumpers on the GVP card. It should autoconfig as ID=7. I would just leave those jumpers empty and try it.
There are SCSI ID jumpers because there are situations where you don't want to use the default ID of 7.
You can for example create a network of computers using SCSI and each host adaptor would need a unique ID. SCSI is a bit like commodore serial bus and IEEE where each device can talk to any other device and there is nothing special about the computer initiating a request.
But if you just have a hard drive and a host adaptor then 0 for the hard drive and 7 for the host adaptor is the standard.
