Connecting case cables to mobo

Forums › Desktop computing › Connecting case cables to mobo - help please.

kiwifidget

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#272402 23-Jun-2020 16:20

Hi, I am installing a mobo into a case.

Most cable connections are pretty obvious, but I just would like to check the case cables.

Reset, HDD LED, Pwr Sw, PwrLED.

I know these cables have +ve and -ve wires.

And I have connected them according to what I believe the mobo manual says.

I also watched a video, it said it didn't matter if you got the +ve and -ve orientation back to front for the PwrSw and Reset connectors, so long as they were on the right pins.

Is this true?

Life is too short to remove USB safely.

Dugimodo

158 posts

Master Geek

#2510665 23-Jun-2020 16:26

you won't hurt anything with any of them, the LEDs just won't work if backwards and the power and reset buttons are just switches that work either way around. The worst you can do as long as you are on the right pin header on the motherboard is plug them in wrong and it won't work, then try again until it does.

I have sucessfully done it in the past with no manual by trial and error.

Also as well as the manual you should see it's actually printed on the board in tiny letters near the pins, at least on most boards this days and I think on that one.

kiwifidget

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#2510666 23-Jun-2020 16:29

@dugimodo thanks, it's good to have a second opinion.

Everything fits, will try a power on soon.

Life is too short to remove USB safely.

Zeon

3607 posts

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Trusted

#2510668 23-Jun-2020 16:40

Virtually no risk with any of these connectors. Try it and if it doesn't work reverse them. The power and reset switches should work regardless.

Speedtest 2019-10-14

kiwifidget

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#2510670 23-Jun-2020 16:49

Hooray! It's working. Thanks everyone.

Life is too short to remove USB safely.

Jase2985

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#2511736 24-Jun-2020 20:51

power and reset are just circuits grounding the button press to preform the action, there is no + or - for them

LED's there is a + or -, it just wont work if connected the wrong way.

Delphinus

454 posts

Ultimate Geek

#2511829 24-Jun-2020 22:38

I've toasted 2 motherboards in the last 20 years getting these around the wrong way.

kiwifidget

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#2511833 24-Jun-2020 22:43

Delphinus:

I've toasted 2 motherboards in the last 20 years getting these around the wrong way.

OMG! Why would you tell me that?! 😬

Anyways, I seem to have avoided disaster this time around.

Life is too short to remove USB safely.

Jase2985

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#2512006 25-Jun-2020 09:56

Delphinus:

I've toasted 2 motherboards in the last 20 years getting these around the wrong way.

sure you didnt plug them into the wrong ports/pins?

Delphinus

454 posts

Ultimate Geek

#2512008 25-Jun-2020 10:00

Yeah pretty sure that was the case, plugged one of the header plugs into the wrong pins on the motherboard. Not just reversed polarity. I've been very very careful ever since!

Jase2985

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#2512015 25-Jun-2020 10:05

so given we have all the info now, its not related to what the OP was asking

kiwifidget

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#2512044 25-Jun-2020 10:45

phew!

Life is too short to remove USB safely.