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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 0000:  The Start of the PC
      9  V  Electricity

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Integrated Circuit (IC)
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Loose Connectors

If you were required to know every connection type ever made, nobody would be A+ certified. And for the test that the Real World throws, you may need to know about the connectors pictured in Figure 0.17. These small connectors fit on pins found as part of a systemboard.

Where do the LEDs and Switches Plug into the Systemboard?

The short answer is: ‘lots of luck figuring it out’. The sad truth is there simply is no standard. Further, there is no rule that requires labeling in a native tongue such as English as seen in
Figure 17. You may find obscure markings, or no markings at all, leaving you clueless.

And the motherboard may have plain marking, or cryptic coding such as J-14 to J-29. Without a manual you are usually better off not spending a great deal of time if you couldn’t note the working combination before you started
.



Figure 17: If you are lucky, the leads to a PC case are labeled. Notice that the Power LED here skips the 2nd pin.

 


 


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