Max turbo for X5650 is 23X. 21 is typical "all core" multi.. My Asus will lock 22X "all cores"..
Yea, I was thinking it turbo'd to 3.3 instead of 3. I've finally been able to get it 3.6. 4 got stuck on the windows logo and 3.8 BSODs. I found out I needed to mess with the memory timing and multiplier to get it past a 140 BCLK.
Even with this modest (compared to everyone else it seems) OC, I'm still hitting 80C with IBT at max. So even if I could get to the desktop at a higher clock, I'm not sure my cooler could handle it.