Does an LGA 1156 i7 860 *need* 8-pin power?

Hey, I'm building a computer on a Gigabyte P55 and the PSU I got only has 1 4-pin CPU power connector... The motherboard's CPU power connector has 8 pins. Is 4-pin sufficient?
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  1. (Due to the fact that Tom's won't let me edit my post i'm double posting)
    More specifically I'm using a P55-UD3R with an i7 860. Also, when turned on a unending high-pitched whine is emitted from the speaker.

  2. Yes, the 4 pin CPU power connector will work just fine in the 8 pin motherboard port. It should be keyed to only fit one way.
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