^Yes. It’s build week is 16 of 2003 so it’s unlocked. I’ve only been looking for unlocked CPUs. I would take a locked AXDA2800DKV4C to see how that behaved with its factory 16x multi, but I’ve never seen one for sale.
I left the machine running overnight at 133x17 (2275MHz according to CPU-z ) with memtest86. 13 passes with no errors
Unfortunately I’m seeing some issues with stability in prime95. A bit unusual. Instead of reporting an error, the system hard locks. Sometime after a few mins, sometimes after longer. I guess it depends on the test. It also does it at 124 x 17 which is LOWER than the CPUs rated frequency. If anything, this setting is even more unstable than 133 x 17
So, new theory time. This magic 17x133 multiplier/fsb setting that posts, isn’t stable.
I’ve been running 140 x 16 and that seems stable. No errors in prime 95 after 8 hours. This is (according to CPU-Z) 2248MHz. I’ve bumped the FSB again now to 142MHz which gives me 2280MHz and I’m seeing how stable this is.
My oscilloscope and post code analysers have arrived so I can do some more fundamental tests now on the buses and the voltage rails to see if any other issues show up