Drive mapping

I’m new to this so be gentle. Have 4 computers which share a DSL router and hub. I’m wanting to ghost the HDDs to one machine using Norton Ghost.
The software ask me to map the drive. The machine I want to map is named Pentium. It has 2 HDD with the 2nd disk partitioned into 4 drives. I want the image to go to the F drive on this disk. So I thought the syntax should be \\Pentium\F but Norton insists on no subfolders. What am I doing wrong?