Nice Brahmzy, mine was also from mwave.com I came from an E6600. I'm running mine at 4.15ghz (461*9) with C1E enabled. Load voltage is set to 1.395v. Batch is Q802A321, 3/27/08. If I wasn't a little concerned about degradation I would go for 4.25ghz @ 1.45v or so but it's the point of diminishing returns.