Is this a tweaked Mugen 2?

jrhii

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May 8, 2010
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I'm pretty sure the number difference has to do with a change in the provided mounting plate that goes behind the mobo. I had a different shape to it before....it may have possibly had a multiple plates for multiple sockets, I don't remember though.
 

Yep that's all it is.The revision is mainly adding support for more sockets.