Asus PSCH-SR/SCSI - Manual (Page 25)

ASUS PSCH-SR motherboard 2-7
2.3 Central Processing Unit (CPU)
2.3.1 Overview
The motherboard comes with a surface mount 478-pin Zero Insertion
Force (ZIF) socket. The socket is designed for the Intel
® Pentium™ 4
processor in the 478-pin package with 1 MB/512 KB L2 cache.
Take note of the marked corner (with gold
triangle) on the CPU. This mark should match
a specific corner of the CPU socket. Gold Mark
2.3.2 Installing the CPU
Follow these steps to install a CPU.
1. Locate the 478-pin ZIF socket on the motherboard.