MSI MS-7242 User Manual download pdf (Page 36)

2-21

Hardware Setup

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:

Slots

PCI (Peripheral Component Interconnect) Express Slots

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 pur-

pose 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 Platforms doubling the capability of existing AGP 8x de-

signs with transfer rates of 4.0 GB/s over a PCI Express x16 lane for graphics

controllers, while PCI Express x1 supports transfer rate of 250 MB/s.

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.

32-bit PCI Slot

PCI Express x16 Slot

PCI Express x1 Slot

Order 1 Order 2 Order 3 Order 4

PCI Slot 1 INT E# INT F# INT G# INT H#

PCI Slot 2 INT F# INT G# INT H# INT E#

Important

When adding or removing expansion cards, make sure that you unplug the

power supply first. Meanwhile, read the documentation for the expansion card

to configure any necessary hardware or software settings for the expansion

card, such as jumpers, switches or BIOS configuration.

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 101 102

No comments

MSI MS-7242 User Manual Page 36