That so called "Opteron Wall"

[ziggo0]

Try with 3x when over 250 to see if any different
With me, at 250 then 4x, 250-330 then 3x

Sounds good. I'm slowlying raising my FSB over 250 and priming for 4 hours. If i can get 4 hours out of it prime stable I increase it 2 more FSB on the ram. Its increased to 254FSB stable so I'm going to put my faith into a series of burn ins and hope that will straighten this CPU out for some more mhz

 

[IWasHungry]

You know it's funny, I had thought about this last night...

As we start moving to dual core, then quad core, then so and and so forth, overclockability is going to drop. If you think about it, with single cores you only have one to worry about. With duals, you're limited to what the lowest of the 2 can do. With Quad, you're stuck with the lowest of the 4.

let's say you have a 20% chance of any core being a bad overclocker. With singles, you've got an 80% chance of it working great. With duals, you've got a 64% chance of getting 2 good cores. With quad core, you're down to a 41% chance.

Of course, this all assumes a consistent core ability... as new revisions come out they may work better as a rule. Still, it's interesting to consider the ramifications of multi-cores on the ability to overclock.

That is a good point. However, as we go into quad-core and beyond, I'm willing to bet that the cores will be able to operate at independant frequencies while in tandem. For example, one core could go 3GHz while the other goes 2.5GHz (Since it won't overclock any farther).