Tested BIOS P0J. The best performance BIOS is 1.13 BETA and then P0H after manual disabling using the tool I linked in the first post, so let's compare with it at exact same clocks, background, timings and so on.

V1.13:
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VP0J:
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Bugs fixed
*HT can now be chosen in BIOS and set.
*All RAM dividers and timings work fine.
*TLB patch is completely enabled/disabled with the BIOS option.
*Checked the registers, all are changed.

Runs fine, I booted and have been running my 2665 settings since about 40mins now. I told you don't believe rumors.

Problems
*One hex value in the C001_1023 MSR is Ah instead of 2h now. This might be what causes lower performance (I'll check).
*As you can see above, the memory/IMC performs lower, slower all round than 1.13 or any other BIOS where you disable patch manually. In the below screenshot my older 2665 run is exactly the same in every setting as my new 2665 run (shown as 2666). The old is BIOS P0H ran just before flashing new BIOS and the new is BIOS P0J both without the patch (checked registers manually).

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Big difference here and in latencies even though I actually had a lower MaxAsyncLatency value here than in the older P0H 2665 run.

So, it is slower, offers lower performance than older BIOSes but has the TLB patch option to disable properly within the BIOS. Still should work flawless for many.

If you have problems, then it's probably your flash technique, as is with most users. You have to use the / pbnc parameters I stated or old BIOS values may be retained.

EDIT: Just seen your above post Suosaaski. You seem to have flashed using the wrong method. Check mine, it works, all registers change.
Which OS you on?