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2 System Board
The Input/Output Controller Hub (82801AA)
Devices on the PCI 32-bit 33 MHz Bus
The following devices are connected to the PCI 32-bit 33 MHz bus.
PCI 32-bit/33 MHz Slots There are three 32-bit/33 MHz PCI slots accepting 5 V PCI cards and
Universal PCI cards (support for 3.3 V or 5 V). The LAN card should be
installed in PCI Slot 5. PCI slots are explained in detail on page 31
.
I840 Memory
Controller Hub
(MCH)
Audio PCI
Chip
(CS4280)
I/O Controller Hub
(ICH) 82801AA
2 x USB
Controller
Slot 1 - 32-bit/33 MHz
Slot 2- 32-bit/33 MHz
Slot 5 - 32-bit/33 MHz
HUB LINK 8 (233
MB/s data transfer
rate)
SM Bus
Controller
PCI Bus (32-bit, 33 MHz)
133 MB/s data transfer rate
Codec
Audio AC‘97
MIDI
Port
AC ‘97
Digital
Link
Intel Pentium III
Processor
I/O Controller Hub
(ICH) 82801AA
PCI Bridge
IDE
Controller
DMA
Controller
Host (also called FSB)
Bus 100/133 MHz