Acer Aspire AM5610 Service Manual page 109

PCI (Peripheral Component Interconnect) Slots
The PCI slots support LAN cards, SCSI cards, USB cards, and other add-on cards that comply with PCI
specifications. At 32 bits and 33 MHz, it yields a throughput rate of 133 MBps.
PCI Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hardware lines over which devices can
send interrupt signals to the microprocessor. The PCI IRQ pins are typically connected to the PCI bus pins as
follows:
PCI Slot
Slot 1
Slot 2
Chapter 5
Order 1 Order 2
INT A# INT B#
INT B# INT C#
Order 3 Order 4
INT C# INT D#
INT D# INT A#
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