Asus Motherboard NR-LSR - Manual (Page 30)

2-4 Chapter 2: Hardware information
2.4 Central Processing Unit (CPU)
2.4.1 Overview
The motherboard comes with a surface mount 478-pin Zero Insertion
Force (ZIF) socket designed for the Intel
® Pentium ® 4 processor. The
processor includes the Intel ® NetBurst™ micro-architecture that features
the hyper-pipelined technology, rapid execution engine, 400MHz system
bus, and execution trace cache. Together, these attributes improve system
performance by allowing higher core frequencies, faster execution of
integer instructions, and data transfer rate of up to 3.2GB/s.
Note in the illustration that the CPU has a gold triangular mark on one
corner. This mark indicates the processor Pin 1 that should match a
specific corner of the CPU socket.
Incorrect installation of the CPU into the socket may bend the pins and
severely damage the CPU!
Gold Mark