** Partitioning does in no way influence the 4GB border ! **
The 4GB limit applies to the drive, not to a partition. You can make one or any number of partitions within the first 4GB of the drive. But the first partition which laps over the 4GB border and every following will need special handling. Programs doing write accesses to these partitions without special handling will destroy data on the other partitions below the 4GB limit. (DiskSalv is one of them).
The 4GB we are speaking of are 2^32 bytes (4,294,967,296 bytes). This amount is usually called "4.3GB" by the manufacturers, so with your 4.3GB drive you could still be safe. Get the Check4GB archive from Aminet and run the CheckHD program from it. Every partition with a "Y" in the >4GB column must not be used with DiskSalv.
Bye,
Thomas