The is widely considered the most reliable high-end upgrade for this board because it fits within the thermal and power limits of the original OEM cooling solutions. If you opt for an i7-4790, ensure your BIOS is fully updated before installation.

| CPU Model | Cores/Threads | Base Clock | TDP | BIOS Version Required | |-----------|--------------|------------|-----|------------------------| | Intel Core i7-4790 | 4 / 8 | 3.6GHz | 84W | Ver 2.1 or higher | | Intel Core i7-4770 | 4 / 8 | 3.4GHz | 84W | Ver 1.8 or higher | | Intel Core i5-4590 | 4 / 4 | 3.3GHz | 84W | Ver 2.0 or higher | | Intel Core i5-4570 | 4 / 4 | 3.2GHz | 84W | Ver 1.5 or higher | | Intel Core i5-4430 | 4 / 4 | 3.0GHz | 84W | Ver 1.0 (factory) | | Intel Core i3-4370 | 2 / 4 | 3.8GHz | 54W | Ver 2.1 or higher | | Intel Core i3-4130 | 2 / 4 | 3.4GHz | 54W | Ver 1.0 | | Intel Pentium G3420 | 2 / 2 | 3.2GHz | 54W | Ver 1.0 | | Intel Celeron G1820 | 2 / 2 | 2.7GHz | 53W | Ver 1.0 |

Performance is nearly identical to an i7-4770 but often cheaper on the used market. Important Limitations & Tips

The original flagship Haswell chips. Intel Core i5 (The Sweet Spot)

4th Generation Intel Core (Haswell / Haswell Refresh) RAM Support: DDR3 / DDR3L (Up to 16GB total; 2 slots) Verified CPU Support List