Biostar 865G MICRO 775 Spécifications télécharger pdf (Page 13)

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Motherboard Types and Features

PCI-X

The next evolution of PCI is PCI-X, which has had three major revisions; the latest is

PCI-X 3.0. All PCI-X revisions are backward compatible with conventional PCI cards and

slots, except 5-V PCI cards are no longer supported. PCI-X is focused on technologies

that target the server market; therefore, it’s unlikely you’ll see PCI-X slots in desktop

computers. Motherboards that use PCI-X tend to have several different PCI slots with

some 32-bit or 64-bit slots running at different speeds. For example, Figure 3-13 shows a

motherboard with three types of slots. The two long green slots are PCI-X; the three

white slots are PCI, and the one offset lime green slot is AGP. The two PCI-X slots can

use most 32-bit and 64-bit PCI or PCI-X cards. PCI-X is being replaced by PCI Express.

PCI Express

PCI Express (PCIe) uses an altogether different architectural design than conventional PCI

and PCI-X; PCIe is not backward compatible with either. PCI Express will ultimately replace

Rear of slot

5 V 5 V

3.3 V

32-bit PCI slots

64-bit PCI slots

64-bit PCI cards

32-bit PCI cards

Universal

3.3 V or 5 V

Universal

3.3 V or 5 V

3.3 V

5 V

Figure 3-12 With PCI Version 2.x, there are four possible types of expansion slots and six differently

conﬁgured PCI expansion cards to use these slots

Courtesy: Course Technology/Cengage Learning

A+ 220-701

A+

220-701

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Biostar 865G MICRO 775 Spécifications Page 13