Here's the build I put together yesterday to start testing and will be updating as I make progress. CPU Core i7-4770K Motherboard Gigabyte GA-Z87X-UD5H RAM 16GB 1600Mhz DDR3 Case Corsair Carbide 600T Power Supply Corsair HX650M Initial Results 2013-06-02: Will not boot using a standard 10.8.3 UniBeast stick as the stock OS X kernel does not recognize the Haswell CPU. Chimera needs to be updated to add Haswell support. Update 2013-06-05: OS X 10.8.4 doesn't contain any support for Haswell. Update 2013-06-07: Good news, bad news. The good is I have it booting 10.8.3 using a custom kernel I built to support it. The bad is that the CPU speed is being reported incorrectly due to no support for Haswell in Chimera. This will be fixed in Chimera 2.1. Update 2013-08-16: Great news, Apple released the source for the 10.8.4 kernel yesterday. So today I've released HaswellHelper 1.0.0 to install my kernel http://www.tonymacx86.com/379-haswellhelper-enhanced-10-8-4-kernel-now-available.html and tonymacx86 has created an installation guide using it at http://www.tonymacx86.com/mountain-...lation-guide-haswell-systems-10-8-4-only.html . We've released these tools and guides for experimenters only and not recommending Haswell builds for a daily driver.