Yes, but I told about things like Leds on front. Legend has it that on some older motherboards, by wrong connecting the front panel you can even burn the motherboard ;), but I think it isn't true.
-- (aldenmaster):
@7 it's definitely a guessing game for sure. Luckily, the pins are mostly in the same spot, so it's just a game of plugging and chugging until you get power with either the power or reset button. I don't even bother with the LEDs.
I had to mutilate a front power header to get it to work with a motherboard. The case in question was a Shiny Snake S300 which had power and LED in a row, and my Gigabyte B650I Aorus ultra stupidly just had power by itself. I resorted to pulling all the pins out of the connector then testing to make sure they still worked just by plugging in the delicate connectors straight into the pins. Once I proved it to work, I semi-stuck them back into the undamaged part of the header and lopped the rest off with some side cutters. It looks absolutely terrible, but whatever; so does the rest of the inside since it's SFF.
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