Hi, I just bought an 160GB X-25M and will buy a Z68 motherboard for my new computer very soon. I was planning to use 20GB of SSD as a cache for HDD, and install windows on the rest 140GB of SSD. Today when I was reading reviews of Smart Response Technology, I found that the drives must be set up in raid mode, thus TRIM was not supported anymore on the cache. I am wondering whether TRIM is still supported on the 140GB portion of the SSD. But none of the reviews mentioned this. Does anybody know the answer? I don't care about TRIM on the 20GB cache, as long as it makes the HDD faster, but I do care about TRIM on the 140GB os drive. Thanks.