IBM MS-7236 (V2.X) Mainboard G52-72361X2 - Manual (Page 38)

M S-7236 M ainboard
2-22
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
2.5 Giga 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. W hen adding or removing expansion cards, make
sure that you unplug the power supply first.
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:
PCI (Peripheral Component Interconnect) Slots
The PCI slots allow you to insert the expansion cards to meet your needs. W hen
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 Express x16 slot
PCI Express x1 slot
Order 1 Order 2 Order 3 Order 4
PCI Slot 1 INT A# INT B# INT C# INT D#
PCI Slot 2 INT B# INT C# INT D# INT A#
PCI Slot 3 INT C# INT D# INT A# INT B#
PCI Slot 4 INT D# INT A# INT B# INT C#