I have purchased the sandisk extreme 240. I am having an issue on my dell laptop. Dell cannot or will not help me. The drive is great but my laptop only sees the sata 3 drive for a short time and then it drops back to a sata 2 device. Dell tells me that my laptop doesnt support sata 3 but it has the sandybridge and hm67 chipset. There have been several people on forums who have sata 6 running great. Mine sees sata 6 and I can get the initial speed test at upwards of 580 transfer rate, but then it just drops down to 250. Is there a driver or something that I should look for.
I have the dell xps 14z. I can only get this to halfway recognize the sata 3 after dropping the bios version from A02 to A00. I have found an unlocked A02 version with many more options, but Im not sure what to look for to enable sata 3