Hiwa's Build: GA-Z87X-OC | Core i7-4770K | ASUS GTX285 1GB | Lian Li PC-A7010 Components Intel Core i7-4770K Processor http://www.amazon.com/dp/B00CO8TBQ0/ http://www.newegg.com/Product/Product.aspx?Item=N82E16819116901 GIGABYTE GA-Z87X-OC (rev. 1.0) Motherboard http://www.amazon.com//dp/B00CU4L6DE/ http://www.newegg.com/Product/Product.aspx?Item=N82E16813128594 G.SKILL Trident X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 3000 (PC3 24000) F3-3000C12Q-16GTXDG - $1400 USD http://www.newegg.com/Product/Product.aspx?Item=N82E16820231688Tpk=asus%20mx279h%2027-inch[/newegg] G.SKILL Phoenix Pro Series FM-25S2S-120GBP2 2.5" 120GB SATA II MLC Internal Solid State Drive http://www.amazon.com/dp/B003THXNQ4/ http://www.newegg.com/Product/Product.aspx?Item=N82E16820231378 Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM 3.5" Internal Drive http://www.amazon.com/dp/B0036Q7MV0/ http://www.newegg.com/Product/Product.aspx?Item=N82E16822136533 ASUS Black Blu-ray Burner SATA BW-12B1ST/BLK/G/AS http://www.amazon.com/dp/B004ZMG55I/ http://www.newegg.com/Product/Product.aspx?Item=N82E16827135252 Antec TruePower Quattro Series TPQ-1200 Power Supply http://www.amazon.com/dp/B002EP30GK/ Lian Li PC-A7010 case http://www.amazon.com/dp/B001BQ2P5U/ Corsair 8GB USB 3.0 Flash Drive http://www.amazon.com/dp/B004YIAACW Mac OS X Version 10.8.4 Lion Download http://itunes.apple.com/us/app/os-x-mountain-lion/id537386512?ls=1&mt=12 ASUS MX279H Silver / Black 27" HDMI Widescreen IPS LED Backlight LCD Monitor, Built-in Speakers http://www.newegg.com/Product/Product.aspx?Item=N82E16824236309 Already Owned ASUS GTX 285 1024MB Comments About This Build I put together this system to be my Testing rig to use with different Boards and graphics. For this configuration, I am attempting to test overclocking performance for the CPU and memory on a new Haswell setup Using the GSKILL 2933 Single sided MFR IC memory from hynix for higher performance timings are tight. The default memory settiings at 1333 gave me -2K on Geekbench V3 32bit Installation Using F6 Bios, there are only several changes in BIOS: Change the memory frequency to 2933; Change primary timings to 12-14-14-35 Manually set the VDIMM to 1.65; Manually set the CPU VTT to 1.05; Change CPU Multiplier to 42X and Vcore1.2 (for the i7-4770K only) I am using Mountain Lion 10.8.4. So, first, I made the UniBeast USB thumb drive with latest UniBeast tonymacx86 software downloads: Unibeast: using the UniBeast Installation Guide. HaswellHelper: using the Haswell Guide Run UniBeast on your Mac or hackintosh and choose your USB. Now, then run HaswellHelper on your USB, your UniBeast USB derive is ready to install Mountain Lion 10.8.4 on your Haswell rig. Boot from your UniBeast USB thumb drive (F12) and choose your USB called °USB° before. Upon booting into the installer, first, use Disk Utility (top Utilities menu) to Format your installation SSD or HDD, and Call it Mountain Lion. Close Disk Utility, and, once back into the installer, choose your "Mountain Lion" drive for installation of Mountain Lion 10.8.4. Note: when installation is finished, use the tonymac86 http://www.tonymacx86.com/mountain-...lation-guide-haswell-systems-10-8-4-only.html to copy the modified mach_kernel for Haswell CPUs to your installation drive. When this done reboot and this time boot with your "Mountain Lion" drive; choose country, keyboard and the rest of the option. Then, you'll see WELCOME TO ML 10.8.4 We're almost done. Using Safari, go to tonymacx86.com, log in and download the latest MultiBeast to install the appropriate drivers. This is the MultiBeast configuration I used for my rig: Uploaded with ImageShack.us Reboot Here's What Works So Far: Audio only USB headset and not Speakers with ALC892 ... Network Sleep iMessage USB 3 with USB2 speed need to wait 10.8.5 or 10.9 Summary Haswell system performance increases with Memory frequency and nice timings. Try it yourself - run Geekbench or Cinebench CPU with memory set to over 2400 to see the real difference. Here's my tests with Overclocked memory and CPU to easy 4.3GHz which is much faster than Ivy Bridge.