If you install two hard disk drives, you must change the jumper settings on each drive to indicate which is the master (primary) and which is the slave (secondary). The primary drive is the one from which you boot your computer.

Changing the Jumper Settings

The following illustration shows the location of the jumpers on the optional Epson 200MB IDE hard disk drive.

If you are installing another type of Epson hard disk drive, the jumpers may be in a different location, and there may be four jumper positions instead of two. The 200MB drive has only two jumper positions: C/D and DSP. Your drive may have four positions: HSP, C/D, DSP, and ACT.

6-4 Installing and Removing Drives