Intel D845GEBV2 BLKD845GEBV2L-10PK User Manual

 17 

Figure 4 is a block diagram of the major functional areas of the Desktop Boards D845GEBV2 and 
D845GERG2.  See Figure 7 on page 33 for USB port routing. 

Intel 845GE Chipset

Intel 82801DB

I/O Controller Hub

(ICH4)

Intel 82845GE

Graphics and

Memory Controller

Hub (GMCH)

4 Mbit

Firmware Hub

(FWH)

AHA

Bus

System Bus

(400/533 MHz)

mPGA478

Processor Socket

Primary/

Secondary IDE

Diskette Drive

Connector

LPC Bus

I/O

Controller

PS/2 Keyboard

PS/2 Mouse

Parallel Port

Serial Ports

UDMA 33 and

ATA-66/100

LPC

Bus

Hardware

Management

ASIC

OM14831

 AD1981B

Audio Codec

Auxiliary Line In

Mic In

Line Out

CD-ROM

Line In

CNR

Connector

(Optional)

LAN

Connector

(Optional)

Physical

Layer

Interface

(Optional)

CSMA/CD

Unit Interface

DIMM Banks (2)

AGP

Interface

4X AGP

Connector

(1.5 V only)

= connector or socket

PCI Bus

SMBus

AC Link

Back Panel/

Front Panel

USB Ports

USB

Memory Bus

SMBus

D845GEBV2

Only

PCI Slot 1

PCI Slot 2

PCI Slot 3

PCI Slot 4

PCI Slot 5

PCI Slot 6

VGA

Port

Display

Interface

SMBus