Yeah. I know about intel chipset for LGA 1155. I had read report issue and news about LGA 1155 serial two years ago. Some SATA 3 is control by intel chipset.Yes. On the intel SATA3 ports I max out at 250MB/s (pretty much sata 2). The marvel controller I do much better with.
The below shot is with the marvel controller. I will reset to stock and take a shot with the intel controller for comparison.