Asus AP1720-E1 - Manual (Page 30)

2-4 Chapter 2: Hardware information
2.4 Central Processing Unit (CPU)
2.4.1 Overview
The motherboard comes with dual surface mount 604-pin Zero Insertion
Force (ZIF) sockets. The sockets are designed for the Intel Processor in
the 604-pin package with 512KB L2 cache. The processor includes the
Intel
® NetBurst™ micro-architecture that features the hyper-pipelined
technology, rapid execution engine, 533MHz 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 4.27GB/s.
2.4.2 Installing the CPU
Note in the above 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.
PC-DL
PC-DL Socket 604
Prestonia
Gold Arrow
If installing only one CPU, use CPU socket 1 to ensure system
stability..
Socket for CPU1
Socket for CPU2