That one core being unstable thing, Try bumping the CPU_NB voltage a bit. That one little voltage for my system effects the stability of my cpu, memory, and CPU_NB link. At 3.8ghz, 1.5vcore sometimes a core will still fail prime, but if I bump cpu_nb like 0.05v it goes away. Of course to get my CPU_NB to 2400 I need to push it a whole 0.1v.
On the other hand adjusting my plain old Northbridge voltage seems to have zero effect on stability at all.
Just realized that I never expected to get into oc'ing this much again. For the last few years I hardly oc'ed my computer much past a few hundred mhz. PhII got me back in the game, they are just so enjoyable to o/c!
A friend is going to need a system built soon, Im going to do it for free + os install and stuff. In exchange I will be adopting the C3 955, giga 790gx am3 board, & DDR3 we will be ordering for the new box, and putting my C2+ddr2 (same mobo but ddr3 ver) in his.
My friend just gave me a Sapphire 4870 X2 (im probably just going to sell it & get a 5770+another 4gb ddr3-1600 ram, my 5502 psu is handling it for now but Im concerned about such a huge power draw on such a small psu), so my system will be doing 4ghz on ddr3-1600 very soon woot!
Oh people with the 955BE C3, can we see some memory benchmarks of your DDR3? So far on C2 and prior AM3 Phenom II chips, ddr3 does not bench out much better than ddr2. I get ~10gb/sec bandwidth thereabouts out of my ddr2-1066. Id really love to see some numbers from the new C3 memory controller with DDR3-1600+, but if you are running 1333 or w/e don't hesitate to share! Id like to know going through all the trouble of upgrading from C2+ddr2 to a C3+DDR3 is going to be worth it!
