Western Digital Portfolio drives plug into a PCMIDE adapter that is installed into the computer system. The adapter is jumpered as follows for proper drive operation:

• To install your Portfolio drive as a single drive, or to install the drive as a master drive in a dual drive system, jumper the adapter on pins 5 & 6.
     
• To install your Portfolio drive as a slave drive in a dual drive system, jumper pins 3 & 4.
     
• Pins 1 & 2 are for cable select. When these two pins are jumpered, the position of the adapter on the cable determines whether the drive is a master or slave. If the adapter is attached in the middle of the cable, the drive will be the master. If the adapter is attached at the end of the cable, the drive will be a slave. Note: the cable select jumpers should only be used if your system and cable support this feature.
  

2.5" Drives

• Caviar Lite

• Tidbit I, Tidbit II

AT Drives

• Centaur, Atlas Dual

• Piranha

XT Drives: Explorer

SCSI Drives

• SCSI Piranha

• Condor