Only the 127.0.0.1 case seemed to be fixed in this build.
I don't think, that the limit will be removed again, as it is described as a "feature" at Microsoft (Link right, search for 4226). So I will still have work to do in the next time *smile*.
which finds the *ACTUAL* AHCI controller, and installs the same driver as what you chose in step 5. That was a *LOT* easier than what I thought it would.
After reading many guides on how to do it with Intel chipsets with home-made registry entries and copying files around…
At least a quick test in Windows 7 gave high speed without any messages in the event log. SYS with build 5.1.2600.2892 on the yesterday's patch-day.