Some numbers on 2 920's I tried today guys, some of the better specimen I have had, all results with HT on:

#1: 3837B282
First I ran 200x19=3,8Ghz on water, 1,23V LinX stable didn't try lower, temps in the low 60's
Then I ran 200x20=4Ghz on phase, not its favourite mult, needed 1,46V to be stable, temp in the low 20's
Unfortunately it hated the 21x mult so I gave up on 200x21, not even 1,55V did it

--> good cool running CPU for air OCs, like most 920's it prefers the 19x mult, useless for chilled water or phase

#2: 3837A707:
First the 3,8Ghz at water test again, also passed with flying colours at 1,23V, again I didn't try lower, temps in the mid to high 60's
Then 4,2Ghz on water, turned radiator fans to max to keep water temp at 25C, passed 3 hours of prime blend at 1,42V temps in the low 70's.
So nice, this CPU likes the 21x mult, on to phase --> 210x21 LinX stable at 1,52V load, horrible mount tho temps went up to +40C, currently crunching WCG at 4,4 Ghz and +30C on all cores



Oh yeah, and I had another one this week, another 3837B282:

Only tried undervolting on that one, running 3,4Ghz at 1,08V stable on air