Excerpt: With the GTX 560 Ti 448 launch well and truly out of the way, it's time to get back into the mass of X79 boards we've got piled up around us. Today we're looking at the Intel DX79SI, a board that a lot of people may ignore. With a strong name for creating rock solid boards, though, Intel offerings continue to be quite a nice option for people who are looking for something that they want to know is backed by the company that makes the processor they're installing in it.
Conclusion: Considering that this board is significantly cheaper than the other two initial X79 boards we saw, it may well be good enough if you're certain of your storage needs now and down the line—and they aren't "Extreme." Just know what you're getting, and what you're not, before dropping coin.
Pros: Very easy interface for overclocking, Supports both SLI and CrossFireX, Accepts up to 64GB of RAM
Cons: No eSATA ports, Only two internal SATA 6Gbps ports, Text-based BIOS