As per the Corsair manual.... page 5.
Step B: Installing the Corsair power supply
STEP 4. Connect the eight-pin +12V (EPS12V) cable to the motherboard.
A. If your motherboard has an eight-pin +12V socket, connect the eight-pin
cable directly to your motherboard.
B. If your motherboard has a four-pin socket, detach the four-pin from the
eight-pin cable, and then plug this four-pin cable directly to your motherboard.
That's what manuals are for.....
Hello TheDraac, Ouch! - per your last sentence. I thank you for for responding. Perhaps I should add a few items that I didn't think that I needed on my question. One, there was no user manual in the carton. Was there supposed to be? Or is it on line? Two, prior to this query, I looked all over the Corsair site and saw no online user manuals. There was no web reference in the packaging either. Could you please tell me where it is? ie, where you found the quote for me? I have a registered account and still can't find any doc.
Now for the nitty gritty pertaining to your answer. My mobo does have a 4 -pin socket, just as darbreeze said. I didn't know that the 8-pin plug could be bifurcated. With a little force, it did. now four pins have "CPU" on the plug and four pins are blank on the plug. I'm assuming by the statement that you provided, it doesn't matter which plug half gets inserted. They both fit. Is my assumption correct?