Introduction
System Block Diagram
4X (1.5V only)
66MHz
Page 1-10
Pentium 4
Processor
478 pin Package
MCH
(Memory
Controller
Hub)
PCI Slots
Controller
USB 1,2
USB 3,4
Serial Port 1
LPC I/O
Serial Port 2
Winbond
LPT Port
PS/2 Mouse
83627HF
PS/2 Keyboard
Game
IR
Figure 5: System Block Diagram
100/133MHz
DDR SDRAM
200/266/333MHz
1,-
1,-
AC'97
ICH4
Audio
(I/O
80 Port
Hub)
USB 5,6
FWH (Firm Ware Hub)
Flash memory
HDD
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