Platform Placement And Stack-Up Overview; Platform Component Placement; Six-Layer Motherboard; Table 3. Placement Assumptions For The Desktop Configuration (6-Layer Motherboard) - Intel Pentium 4 Design Manual

R
3 Platform Placement and Stack-Up
Overview
In this section, examples of Intel 850 chipset platform component placement and stack-up are
described for desktop systems in 6-layer ATX and 4-layer µATX motherboard form factors.
3.1

Platform Component Placement

3.1.1

Six-Layer Motherboard

Figure 5 shows general component placement for a Pentium 4 processor in the 478-pin package
and Intel 850 chipset-based desktop 6-layer motherboard system. The assumptions used for the
component placement are described in Table 3 and are consistent with the 6-layer customer
reference board (CRB) schematics.
Note: The processor supports uni-processor configurations only.

Table 3. Placement Assumptions for the Desktop Configuration (6-Layer Motherboard)

System
Configuration
Uni-processor
® ®
Intel Pentium 4 Processor / Intel
Form Factor
ATX
®
850 Chipset Family Platform Design Guide

Platform Placement and Stack-Up Overview

Assumptions
Number of Assembly
Layers for
Routing
6 layers Single sided
31