USB connectors on mobo, vs USB slots in case

Vulcan15

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Dec 17, 2016
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So I was just wondering, if you have more USB connectors on your mobo than on your case, that's fine right? The only thing that you need is to make sure you have at least as many USB connectors on your mobo as your case does, correct?
 
Solution


Oh, are you concerned that some of the motherboard's USB headers aren't going to be used? That's no problem. Very few rigs have all the USB 2.0 headers populated. The number of rear ports plus the number of headers (x 2) is the total USB 2.0 ports you can have. The USB 3.0 ports will connect to a different header, and may need a driver installed before they...

clutchc

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There is no rule for that. The M/B USB ports are hard wired to the M/B. The ones on the case are plugged into the USB headers on the M/B. Both work off the same controller. The board/CPU will limit the number of USB ports you can have total.
 

Vulcan15

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Dec 17, 2016
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Okay, how do you check the cpu limit? And it's fine if your case has less USBs than the mobo has USB headers, right?
 

clutchc

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Ambassador


Oh, are you concerned that some of the motherboard's USB headers aren't going to be used? That's no problem. Very few rigs have all the USB 2.0 headers populated. The number of rear ports plus the number of headers (x 2) is the total USB 2.0 ports you can have. The USB 3.0 ports will connect to a different header, and may need a driver installed before they become active.
 
Solution

Vulcan15

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Dec 17, 2016
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Yeah, I was just worried some of the headers wouldn't be used. Thanks for the help by the way.