SanDisk SSD U100 16GB unresponsive/broken

Good job in managing to sort this out, at least in part. Assuming it’s all correctly working, it’s going to be a while before the caching software populates the SSD with data you routinely use, appreciably enhancing your computer’s responsivity. That’s the main difference between using a SSD as a cache and using it as a system drive, installing completely the operating system on it.

As you can see from the statistics you posted, only 16% of the total system reads (“cache read percent”) were fetched from the cache.

I’m not sure if this speeds up boot time as well. The caching system included in the Intel Rapid Storage drivers (on supported chipsets) doesn’t, and other ones from other software houses that I have tried don’t either.