Block Diagram - Intel D845EPT2 Specification

Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification

1.2.4 Block Diagram

Figure 3 is a block diagram of the major functional areas of the Desktop Boards D845EBG2 and
D845EPT2. See Figure 5 on page 26 for USB port routing.
= connector or socket
Primary/
Secondary IDE
µPGA478
Processor Socket
AGP
Interface
4X AGP
Connector
(1.5 V only)
DIMM Banks (2)
PCI Slot 1
PCI Slot 2
PCI Slot 3
PCI Slot 4
PCI Slot 5
PCI Slot 6
16
UDMA 33 and
ATA-66/100
System Bus
(400/533 MHz)
Intel 82845E
AHA
Memory Controller
Bus
Hub (MCH)
Memory Bus
SMBus
PCI Bus
SMBus
Hardware
Management
D845EBG2
ASIC
Only
Figure 3. Block Diagram
USB
LPC Bus
I/O
Controller
LPC
Bus
Intel 82801DB
I/O Controller Hub
(ICH4)
Physical
Layer
Interface
CSMA/CD
Unit Interface
AC Link
SMBus
AD1981A
Audio Codec
(Optional)
Back Panel/
Front Panel
USB Ports
Serial Ports
Parallel Port
PS/2 Mouse
PS/2 Keyboard
Diskette Drive
Connector
4 Mbit
Firmware Hub
(FWH)
Intel 845E Chipset
LAN
Connector
(Optional)
CNR
Connector
(Optional)
Line In (Optional)
Line Out (Optional)
Mic In (Optional)
Auxiliary Line In
CD-ROM
OM14258