|Simple installation. Select drive settings to master. Connect to ethernet adaptor. Screw into back of PS2 where the expansion slot is located. Boot PS2 holding down square key to select Toxic OS. HDD is recognised by Toxic OS and asked to be formatted. Select Yes. Go into HDD settings and install games. Works silently. No problems. Thanks Toxic & DMS support forms for the information. Thanks to DMS for the production of the DMS 4 EZi pro cheap - great chip for the amateur to install.