First of all, if you don't have >9GB ram... You have never experienced this issue. I'm not looking for any sort of speculation, just facts. Also, if you have a Bloomfield, this issue does not affect you.

Here's what we know of the bug so far:
Allocating more than 9216MB causes low GFlops in linpack when HT is enabled.
For example:
vs

You can see that all my timings and settings in these two pictures are identical. The only difference is the problem size, and there is a drastic change in GFlops between 8GB problem size and 10GB problem size.

Some members have reported that they have managed to get full GFlops *some times* but not always, and they have never been able to pinpoint the cause of the issue. Disabling HT does solve the low GFlop problem, but I am looking for the solution with HT on.

So far, the only people that I'm directly aware have this issue are running the ASUS R3E. Are there any users with EVGA or Gbyte mobo's that experience this same issue?

Things we've tried:
Increase/decrease all ram timings/RTL/tRL.
Increase/decrease UCLK(higher UCLK does get higher GFlops, but does not resolve the issue).
Increase/decrease voltages all around(vcore, qpi, ddr, ioh, pll, pwm freqs...)
Updated linpack binaries(I've got the latest from intel's site).

Anyway, if someone knows what the deal is, I'm sure many of us here would appreciate it if you shared your knowledge.