HP A7818-IE002 - Manual (Page 50)

System Board
Input/output Controller Hub 2 (82801BA)
Chapter 2 50
• RIMM serial EEPROM
Figure 2-10 Devices on the SMBus
ICH2 SMBus Master Controller
The ICH2 provides a processor-to-SMBus controller. All access performed to the SMBus
occurs through the ICH2 SMBus interface. Typically, the processor has access to all the
devices connected to the SMBus.
I850 Memory
Controller Hub
(MCH)
82840-QP
I/O Controller Hub
(ICH2) 82801AA
MaxiLife
Monitor-
ing Chip
Serial
EEPROM
SMBus
4 x USB
Controller
LCD
Status
Panel
System Bus
HUB LINK 8
(233MB/s data
transfer rate)
SMBus
Controller
Fans
Intel Pentium IV
Processor
with L2 cache memory
I/O Controller Hub
(ICH2) 82801BA
PCI bridge IDE
Controller
DMA
Controller
CS audio
codec
(CS4299)