Biostar 865G MICRO 775 Spécifications télécharger pdf (Page 48)

CHAPTER 3

146

All About Motherboards

Figure 3-50 The auxiliary 4-pin power cord provides power to the processor

Courtesy: Course Technology/Cengage Learning

Molex-style power connector

(B)(A)

SATA-style power

connector

Figure 3-51 Auxiliary power connectors to support PCIe

Courtesy: Course Technology/Cengage Learning

If your power supply doesn’t have this connector, recall from Chapter 2 that you can

purchase an adapter to convert two Molex connectors to a PCIe connector.

Some boards designed to support multiple PCIe video cards will have additional

power connectors on the board to power these wattage-hungry cards. For

example, Figure 3-51(a) shows a 1 x 4 Molex-style connector on one board that

provides auxiliary power to PCIe graphics cards. This same board offers a

SATA-style connector, shown in Figure 3-51(b). The motherboard documentation

says to use just one of these auxiliary power connectors to provide additional

wattage for PCIe video cards.

To power the case fan, connect the power cord from the fan to pins on the mother-

board labeled Fan Header. Alternately, some case fans use a 4-pin Molex connector

that connects to a power cable coming directly from the power supply.

Later, after the CPU cooler is installed, you’ll need to connect the power cord from

that fan to the pins on the motherboard labeled CPU Fan Header.

5. Connect the wire leads from the front panel of the case to the motherboard. These are

the wires for the switches, lights, and ports on the front of the computer. Because your

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Biostar 865G MICRO 775 Spécifications Page 48