Nope, altho I eventually got vcore down to a stable 4.75v with pll set to 1.7v.
Ah well, just bought another one, Batch L041B213T, will be back later with the results.
Core i7 2600K Batch L101B437 #2052
maxed out at 4800Ghz, 1.5v
http://valid.canardpc.com/show_oc.php?id=1718953
Required high vcore across the board, bad all around