I dont under stand any of that Jambo? And whats that thing that z68s work with SSDs?
The SSD only has a certain amount of lifespan, and defragging, prefetching and indexing all perform unnecessary read/writes.
Plus, the SSD is so fast that you don't
need any form of defragging or prefetching!
But I wouldn't worry about that. You'd get about 20GB of writes per day, for 5 years straight, before the drive would kick it.
The z68 mobos and caching, is exactly as it sounds. It's just caching. Its similar to when you inserted a memory stick into XP (or Vista?) and it asked you to do that funky TurboBoost, or Speed(something). And it used the flash drive as a cache for applications to speed up your system. This is just like that, but on a larger and more hard-wired scale.
It's almost like a new form of RAIDing, for your normal HD with a SSD drive.
Basically, the firmware on the mobo analyses the most recently used files (called a sweep) and assesses which files are accessed most often. It copies those files across to the SSD, so in stead of the HDD being queried for data, the cache will hold most (if not all) of the (most oftenly used &) required data. Making your load times substantially smaller
Say you play WoW, a lot. It would pick that up, and copy those files across, so you get into the game quicker.
Or you use Photoshop on a daily basis, it would copy that across.
You get the idea
Although, since it's similar to RAID, it will only show that your system has one main hard-drive.
Edit:
At first the caching thing seems like a good idea, but it's almost redundant. You can just install Windows and games to the SSD and just store stuff on an actual HDD for retrieval or intermittent use.
Saying that, if you use the 'cache' feature, it would optimise the space used, I suppose.. Since SSDs aint cheap, at all!