
Annex: Resources
Beckhoff New Automation Technology CB4052 page 73
Address Function
IRQ12 PS/2 Mouse
IRQ13 FPU
IRQ14
IRQ15
D PCI Devices
All listed PCI devices exist on the board. Some PCI devices or functions of devices may be disabled in
the BIOS setup. Once a device is disabled other devices may get PCI bus numbers different from the
ones listed in the table.
AD INTA REQ Bus Dev. Fct. Controller / Slot
- - 0 0 0 Host Bridge ID2A40h
A - 0 2 0 VGA Graphics ID2A42h
A - 0 25 0 LAN ICH9 ID10F5h
A - 0 26 0 USB UHCI Controller #4 ID2937h
B - 0 26 1 USB UHCI Controller #5 ID2938h
D - 0 26 2 USB UHCI Controller #6 ID2939h
C - 0 26 7 USB 2.0 EHCI Controller #2 ID293Ch
A - 0 27 0 HDA Controller ID293Eh
A - 0 28 0 PCI Express Port 1 ID2940h
A - 0 28 4 PCI Express Port 5 ID2948h
A - 0 29 0 USB UHCI Controller #1 ID2934h
B - 0 29 1 USB UHCI Controller #2 ID2935h
C - 0 29 2 USB UHCI Controller #3 ID2936h
A - 0 29 7 USB 2.0 EHCI Controller #1 ID293Ah
- - 0 30 0 DMI-to-PCI Bridge ID2448h
- - 0 31 0 LPC Interface ID2917h
B - 0 31 2 SATA Interface #1 ID2928h
B - 0 31 3 SMBus Interface ID2930h
A - (1) 0 0 LAN external ID10D3h
20 A 0 (2) 4 External Slot 1
21 B 1 (2) 5 External Slot 2
22 C 2 (2) 6 External Slot 3
23 D 3 (2) 7 External Slot 4
E SMB Devices
The following table contains all reserved SM-Bus device addresses in 8-bit notation. Note that external
devices must not use any of these addresses even if the component mentioned in the table is not present
on the motherboard.
Address Function
10-11 Standard slave address
40-41 GPIO
60-61 BIOS internal
70-73 POST code output
88-89 BIOS-defined slave address
A0-A1 DIMM 1
A2-A3 DIMM 2
A4-AF BIOS internal
B0-BF BIOS internal
D2-D3 Clock
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