Asrock X299 Extreme4 Core-X CPU Support List

*15G062061200AK*

P/N: 15G062061200AK V1.0

is motherboard supports both Skylake-X and Kaby Lake-X processors.

Unlocked Intel® Core™ X-Series Processor Family

Processor #

i9-7980XE 44 Quad Channel Supported Supported

i9-7960X 44 Quad Channel Supported Supported

i9-7940X 44 Quad Channel Supported Supported

i9-7920X 44 Quad Channel Supported Supported

i9-7900X 44 Quad Channel Supported Supported

i7-7820X 28 Quad Channel Supported Supported

i7-7800X 28 Quad Channel Supported Supported

i7-7740X 16 Dual Channel N/A Supported

PCI express

3.0 lanes

Memory Channel RSTe* RST*

i5-7640X 16 Dual Channel N/A Supported

*For further details on RST (Rapid Storage Technolog y), Optane, RSTe (Rapid Storage Technology

enterprise), and VROC (Intel® Virtual RAID on CPU), please refer to the ocial information

released by Intel and the website driver update released by ASRock.

Memory Conguration

i7-7800X and above (Skylake-X CPU)

8 DIMMs working simultaneously

When installing memory modules, the DIMM slots should be populated in the following order:

DDR4_A1, DDR4_B1, DDR4_C1, DDR4_D1, and then DDR4_A2, DDR4_B2, DDR4_C2, DDR4_D2.

i5-7640X, i7-7740X (Kaby Lake-X CPU)

4 DIMMs working only

When installing memory modules, the DIMM slots should be populated in the following order:

DDR4_C1,DDR4_D1 and then DDR4_C2, DDR4_D2.

PCIe Slot Conguration

i9-7900X and above (44-lane Skylake-X CPU)

Slot # Single VGA SLI/CrossFireX

2 x16 x16

3 x16

i7-7800X or i7-7820X (28-lane Skylake-X CPU)

Slot # Single VGA SLI/CrossFireX

2 x16 x16

3 x8

i5-7640X, i7-7740X (16-lane Kaby Lake-X CPU)

Slot # Single VGA SLI/CrossFireX

2 x16 x8

3 x8

*Unplug all power cables before installing or removing the CPU.