Jumper 3,4,5 決定 scsi id
jumper3=1
jumper4=2
jumper5=4

所以
id0=全不插
id1=只插jumper3
id2=只插jumper4
id3=jumper3+jumper4
id4=只插jumper5
id5=jumper3+jumper5
id6=jumper4+jumper5
id7=全插