Case wire color coding

[Corwin613]

is there a standard for cases? I have an older computer and it doesn't boot up and i want to double check if the wires are all hooked up but I don't know which is which on this one

I have a print out of the board and what each plug is...

This probably sounds stupid to some of you but i figure I'd ask since searching wasn 't providing anything fruitful

 

[Tmagic650]

Just follow the twisted pair wires from the front case (power switch, reset switch, power LED and hard drive LED) Only the hard drive LED and the power LED need polarity positioning, meaning the black wires or (-) have to be in a certain order on the motherboard header, in order to function. The header position of the power and reset switches don't have a polarity (+ or - ) concern. + is the colored wire and the - is the black wire

 

[Corwin613]

what if if there isn't a black wire? should i assume then that the white wire is the - wire?

 

[Tmagic650]

Yes, the white wire will be - or ground