Just thought I’d drop a quick update on where things stand. Core number 3 is being stubborn—won't touch anything above 4.3GHz without pushing the voltage way too high. Core
1 hits
4.5GHz at
1.325V, while core
2 manages
4.5GHz at
1.330V. Then there's core
3, which barely scrapes
4.4GHz unless I crank it up to
1.375v. Couldn't even get to the fourth core because the third one just wouldn't cooperate. For now, I've settled everything at 4.3GHz @ 1.300V, applied a tiny 0.005v + offset, and ran through 25 IBT tests. AIDA64 held up for about 3 hours. From what I've read online, Haswell and Prime95 aren't exactly "best friends," so take that for what it's worth. Here’s the snapshot after the last round of testing:
I'm definitely going to perform a Delid soon to deal with this nearly 10°C gap; I'd really like to see that variance back down to a more sane 0-5°C range.

These temps are actually looking pretty decent after a few gaming sessions, even under 100% load at 1.300v.
