Owner manual

AR-1790 User’s Guide

2.2 CPU INSTALLATION

This main board supports Intel Pentium 4/Celeron, Socket 478 series CPU. Please follow the step as below:

! Be careful of CPU orientation when you plug it into CPU socket.

! Pull up the CPU socket lever and up to 90°

! Locate Pin 1 in the socket and look for a black dot or cut edge on the CPU upper interface. Match Pin 1 and

cut edge, then insert into the CPU socket.