2 System Board
Devices on the PCI Bus
Devices on the PCI Bus
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PCI Device |
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| Function | AD[xx] |
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DT |
| MT | Number | INTA | INTB | INTC | INTD | |||
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PL/PCI bridge |
| TXC | 0 (00h) | 0 | 11 | — | — | — | — | |
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PCI/ISA bridge |
| PIIX3 | 15 (0Fh) | 0 | 26 | — | — | — | — | |
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IDE controller |
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| 1 |
| — | — | — | — |
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USB controller |
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| — | — | — | — |
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Integrated graphics controller | S3 Trio 64V2 | 13 (0Dh) | 0 | 24 | A | — | — | — | ||
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PCI slot #1 | J4 |
| J6 | 7 (07h) | — | 18 | A | B | C | D |
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PCI slot #2 | J3 |
| J11 | 10 (0Ah) | — | 21 | D | A | B | C |
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PCI slot #3 | J1 |
| J5 | 6 (06h) | — | 17 | C | D | A | B |
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PCI slot #4 (minitower models) | — |
| J12 | 12 (0Ch) | — | 23 | B | C | D | A |
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PCI Proprietary slot (desktop models) | — |
| — | 11 (0Bh) | — | 22 | C | D | A | B |
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The distribution of the interrupt lines is described more fully on page 82.
Models without any PCI boards, such as the Matrox Millennium Graphics controller or the Ethernet Network controller, are supplied with a PCI terminator. This should be plugged into any PCI slot, and removed if ever a PCI accessory board is subsequently installed.
Integrated Drive Electronics (IDE)
The IDE controller is implemented as part of the PIIX3 chip (the PCI/ISA bridge). It is driven from the PCI bus, and has
Up to four IDE devices are supported: two (one master and one slave) connected to the primary channel, and two (one master and one slave) to the secondary channel. The primary channel is fitted with an IDE cable with two connectors. The secondary channel is fitted with an IDE cable with one or two connectors (one for the desktop models, two for the minitower models). If a single device (a hard disk drive or a
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