IBM G52-72361X2 manual PCI Express Slots, PCI Peripheral Component Interconnect Slots

MS-7236 Mainboard

Slots

The mainboard provides a PCI Express x16 slot, a PCI Express x1 slot and four 32-bit PCI bus slots.

PCI Express Slots

The PCI Express slots, as a high-bandwidth, low pin count, serial, interconnect technology, support Intel highest performance desktop platforms utilizing the Intel Pentium 4 processor with HT Technology. PCI Express architecture provides a high performance I/O infrastructure for Desktop Platforms with transfer rates starting at

2.5Giga transfers per second over a PCI Express x1 lane for Gigabit Ethernet, TV Tuners, 1394 controllers, and general purpose I/O. Also, desktop platforms with PCI Express Architecture will be designed to deliver highest performance in video, graphics, multimedia and other sophisticated applications. Moreover, PCI Express architecture provides a high performance graphics infrastructure for Desktop Plat- forms doubling the capability of existing AGP 8x designs with transfer rates of 4.0 GB/s over a PCI Express x16 lane for graphics controllers. You can insert the expan- sion cards to meet your needs. When adding or removing expansion cards, make sure that you unplug the power supply first.

PCI Express x16 slot

PCI Express x1 slot

PCI (Peripheral Component Interconnect) Slots

The PCI slots allow you to insert the expansion cards to meet your needs. When adding or removing expansion cards, make sure that you unplug the power supply first. Meanwhile, read the documentation for the expansion card to make any neces- sary hardware or software settings for the expansion card, such as jumpers, switches or BIOS configuration.

PCI Slots

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 INT A# ~ INT D# pins as follows:

	Order 1	Order 2	Order 3	Order 4
PCI Slot 1	INT A#	INT B#	INT C#	INTD#
PCI Slot 2	INT B#	INT C#	INTD#	INT A#
PCI Slot 3	INT C#	INTD#	INT A#	INT B#
PCI Slot 4	INTD#	INT A#	INT B#	INT C#

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