Hi Dietmar,
sorry if I disturb you...
Could you please elaborate a little, which USB3 driver you used for your Lenovo x230, and how?
I have almost the same x230 (laptop, not tablet) and I'm trying to patch existing installation on it but have no success, and the ReadMes for patches in pack are scarce.
It worked flawlessly for years with minimal driver set from Lenovo site with the only drawback as lack of USB3, only USB2 worked properly; up to 4GB was available out of the box with key /PAE in boot.ini, and all above (up to 16GB I installed) I used as virtual drive for Temp folder and Page file. And access to GPT drives by replacing disk.sys and partmgr.sys from W2K3. So that was passably until the web sites completely abandoned old browsers and became terribly overweighted.
Thus I applied PAE 3.5+ RAM Unlock patch, and the fun began. USB2 stopped to work as well, and bluetooth as a consequence, since it is connected internally to USB2. Reinstalling drivers did not help: neither ones from lenovo, nor the minimal driver of WinXP. None of drivers in the patch pack seem to know this usb chip, I installed Kernel Mode Framework and what it requires, but nothing helps. So I'm not even sure the KMF is really needed. My guess is I probably should add my PIDs and VIDs into some .inf files but I have no idea which where, under Win7 I can see at least 3 different PIDs (and fourth probably from bluetooth), and may be my guess is wrong.
Thanks in advance.