Quote Originally Posted by Mechromancer View Post
I predict that when you have memory for both CPUs, and maybe a board in the future with a much faster HT link speed, you'll see a multi-threaded speedup ~11x, instead of 8.53x. I really think the current boards bottleneck these Istanbuls a lot.

I'm confident we're only seeing a fraction of their performance right now.
I've been a bit puzzled by this actually. The Istanbul CPUs support HT3 and the motherboard does as well. I'm not sure why the link is only 5x200. *scratches head* I think the speed seen here isn't really relevant. The link between the CPUs themselves should auto-negotiate directly and establish the proper 4.8GT/s HT link. Only the link to the chipset for PCIe traffic and such should be impacted by the HT link speed shown. I'll see what more information I can find on this.

Quote Originally Posted by Zucker2k View Post
Good idea, your task manager ss looks like your cpu is throttling @ only 2.2GHZ; check it out before you break your expensive hardware.
I'm not certain what you mean. The CPU frequency of the 2427s is 2.2GHz. I've disabled both throttling and PowerNow.

Quote Originally Posted by Slappa View Post
Very interested to see if you can OC.

Here's my question, is it possible to get a Quad Socket F board and put 4 of these badboys in?
It can certainly be overclocked. I experimented with it briefly on my faulty motherboard and did some 2.5GHz action. I haven't yet figured out how to get vCore up on this board as K10Stat's VID settings don't seem to take effect as far as I can tell.

There are quad boards that can support Istanbul processors, but you'll need 8000 series ones instead of 2000 series like mine. They have extra HT links allowing more CPUs to work together at once, and they're much more (prohibitively) expensive.