Acer Aspire Z5771 Acer Aspire Z5770 and Z5771 Desktop Service Guide - Page 157

Replacing the ODD 0 1. Screw 4 screws fix the ODD in cage. ID Size M2*2L (K) Quantity 4 Screw Type 2. Install the ODD module (with bracket) in the direction as indicated by the arrow. Screw 1 screw to fix it. System Disassembly and Assembly 3-85