I can happily report that batch number 3841A507 runs at up to 3.6Ghz on nothing more then VID vcore of 1.19 set in bios, 1.17 idle, and 1.15 under full load. Taking her up to 3.8Ghz requires nothing more then 1.225 set in bios to stay stable. Orthos/Prime/IBT stable on all of the above for 8 hours. 4Ghz requires 1.3 so it takes a big jump for that last 200mhz, but is rock solid there too. Too bad it's only stock cooled or I'd be running 4Ghz 24/7, but am constrained to only 3.6 as a 24/7 speed to keep full load temps below 85C.

All settings above are with HT on and Turbo off.