Hmmm.....I'm no pro, but I did stay at a Holliday Inn Express last night.
I know that with some PSU's, they are "universal" (for lack of a better term). I had one that was good for either amd or intel (20 or 24 pin, can't remember what one goes to which), and the extra 4 pins just hang off the side unused. This actaully stumped me and I called tigerdirect.com and asked their techs about it, and they said it was fine. It worked just fine. You'll want to get your model number of your psu and verify this at the manufacturers website though.
If it's the other way around, and you're short 4 pins, then obviously you'll need an adapter or a new psu. Question is, what's the price difference? If an adapter is only (example) $30, and a new psu is (example) $100, then ya, I'd get the adapter if it were me.
However, if the adapter is say $60, and a new psu is $100, then I'd get the new psu (if you plan on replacing it eventually). If you don't plan on replacing it, then I'd get the adapter to save the $40 difference.
Hope this helps! Oh, and you might want to hold out for an opinion from someone who doesn't have to stay at a Holliday Inn Express to be smart
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