Replacement Power Supply Form Factors and Connectors
When you shop for a power supply, you also need to make sure it can connect to your motherboard. There are two major types of power connectors on motherboards:
12-pin, modeled after the original IBM PC power connector and used on Baby-AT and LPX motherboards (see Figure 5.5)
Figure 5.5. Twin 6-pin power connectors are used on LPX and other power supply types that attach to motherboards with a 12-pin connector.
20-pin, used by all motherboards in the ATX family (see Figure 5.6) and by the NLX riser card (which provides power to the NLX motherboard)
Figure 5.6. The ATX power supply has a single 20-pin ...
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