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Pinout connectors

By shantie ·
Hi just a simple question, re Hard/power led, power switch etc connectors to motherboard. I would like to know how you tell the + or - for these connectors. All motherboards are different and although they might have power, hard drive etc written on the motherboard it also has + & -. On the connectors themselves, there is no + or -, most of them have a pyramid shape, does this relate to the +,- and which one? One electrician told me to use a multimeter on these connectors to see which one is which but that seems like a lot of trouble. Can anyone tell me how to identify the + and -, thank you

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by Chris910 In reply to Pinout connectors

The piramid relates to pin 1 on the connector. on the mother board there should be a matching pin numbered 1 or a a distinguishing mark on the perifery of the connector.
--The black wire is the ground on almost all Direct current (DC) circuits. (The standard)
--for a switch it usually does not matter which direction it is connected.
--For a LED if you connect it backwards it simply wont light up. no harm no foul just turn it around.

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by shantie In reply to

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Hi thanks for the quick response, helped a lot
regards Conchitta

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by shantie In reply to Pinout connectors

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