I recently bought ASUS K551LN laptop with hybrid drive in it (didn't ask for it, it just happened that this model came with it). As SSD partition is only 24GB which is not enough to install OS onto it (at least Win7 that I need). I'd like to use it for caching. For that I need to change SATA mode in BIOS from AHCI to RAID which I can't as I don't get to select any other SATA mode other than AHCI so I was wondering if anyone here had the same problem as it's driving me crazy cause currently Windows sees SSD drive as separate disk. I flashed BIOS to the latest version available (2.15.1236 and btw its American Megatrends) so I'm pretty stuck here.
OK. after a lot of research I finally found a solution thanks to Paul Berry. Ramhound, you were partially right but you cannot use any software, seems it has to be Express Cache from Disk Keeper that ASUS ships with their laptops that come with pre-installed OS. Intel RST driver has to be installed prior to installation of ExpressCache. Here's the link to blog that helped me solve the issue: