OK, guys, BIG confusion here!

Temps of system are beautiful - max: 45C chipset, 49C mosfets, open air build.
CPU Temperatures and Scaling (orthos stable):
~3000GHz@1.35V 35-36C
3060GHZ@1.35V x 104% 37-38C
3100GHZ@1.375V x 104% 38C
3160GHz@1.4V x 104% 39-40C
3170+ NO GO even at 1.65V !!! 46C Orthos fails in 1-10mins

Tried already:
swapping to 2x256MB BH5's (mine is UCCC 2x1GB);
More powerful PSU - Tagan 580-U22
Upped the volts on LDT, Chipset, DRAM, PCIE freq
Lowered the HTT multy, DRAM divider, loosened timings

Only things I see left are: 2T on ram, moving on the orange slots, changing bioses (704-2BTA now, should I?)...

Help, help, help...