![]() ![]() PCI Express x1 connector: PCI Express is a serial interface, though multiple lanes may be ganged together. Power for secondary fans: Many motherboards with secondary-fan power headers these connectors are mainly used to power and monitor various case fans. You’ll see four-pin connectors on lower-end boards supporting CPUs with lower thermal design power (TDP), but the eight-pin version of the connector is used with higher-end processors and on boards that users may overclock. The system BIOS monitors CPU cooling fan speeds and if the fan isn’t connected to this header, you may get an error at bootup.Įight-pin ATX12V (CPU power) connector: Back when the Pentium 4 processor first shipped, Intel realized that high-performance CPUs needed their own source of clean, dedicated power beyond what the standard 24-pin power connector could deliver. The system supports dual-channel memory, meaning that the system is populated with paired memory modules, which are mounted in sockets of the same color.ĬPU fan header: This connector is specifically designed to link to the CPU cooling fan. The P67 chipset used in this board maxes out at DDR3-1600, but to achieve that level of speed you’d have to overclock the chipset–officially the P67 supports only DDR3-1333. Intel D67BG motherboard: a modern Intel design.ĭDR3 memory sockets: Current-generation PC systems use DDR3 memory, but in many instances they support different operating speeds. ![]() Now let’s examine a more recent motherboard: an Intel D67BG, based on Intel’s P67 chipset and supporting LGA 1155 CPUs (like the Sandy Bridge-based Core i7-2600K). And if you do find yourself needing a floppy drive, you can always pick up an external, USB-connected drive. But unless you have a pile of old floppies, you won’t need a floppy drive. Floppy disk connector: The venerable 3.5-inch floppy disk drive survived for nearly two decades–an eternity in the tech universe. ![]()
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