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ASRock X99 Extreme6 ATX motherboard, black PCB with silver heatsinks and blue slots

ASRock

ASRock X99 Extreme6 LGA 2011-v3 Intel motherboard

SKU CH-HGW7-M0T79

ATX board with LGA 2011-v3 socket, eight DDR4 slots for up to 128 GB quad-channel memory, three PCIe 3.0 x16 slots, ten SATA 6Gb/s ports, one Ultra M.2 socket.

  • CPU Socket TypeLGA 2011-v3
  • ChipsetIntel X99
  • Onboard Video ChipsetNone
  • Number of Memory Slots8x288pin (DDR4)
  • Memory StandardDDR4 3000+(OC) / 2933+(OC) / 2800(OC) / 2400(OC) / 2133 / 18
  • Maximum Memory Supported128GB
  • Supports 128GB DDR4 across eight slots for large workloads
  • Quad-channel memory architecture increases bandwidth for demanding applications
  • Three PCI Express 3.0 x16 slots enable multi-GPU configurations
  • Ultra M.2 socket delivers up to 32Gb/s for fast storage
  • Dual Gigabit LAN with Intel and Qualcomm Atheros controllers provides redundant networking

LGA 2011-v3 workstation foundation

The ASRock X99 Extreme6 is an ATX motherboard built around the Intel X99 chipset for Core i7 processors in the LGA 2011-v3 socket. It targets content creators and engineers who need quad-channel memory bandwidth and multi-GPU expansion in a single board. Eight DDR4 slots and three full-length PCI Express 3.0 x16 slots give the platform room to scale.

128 GB DDR4 capacity with quad-channel headroom

Eight 288-pin slots support up to 128 GB of DDR4 running at speeds from 1066 to 3000+(OC) in quad-channel mode. The board handles large datasets and virtual machines comfortably, but memory bandwidth saturates at the controller limits of the X99 platform. Overclocked modules above 2400 require a CPU with a strong memory controller and careful voltage tuning.

PCI Express 3.0 and SATA 6 Gb/s interface limits

Three PCI Express 3.0 x16 slots operate at x16, x16 and x8 with a 40-lane CPU; a 28-lane CPU drops them to x16, x8, x4 and disables three-way SLI. Two PCI Express 2.0 x1 slots and one mini-PCI Express slot add peripheral connectivity. Ten SATA 6 Gb/s ports and one Ultra M.2 socket (Gen3 x4, 32 Gb/s) provide storage throughput capped by the chipset’s lane allocation and the SATA 6 Gb/s ceiling.

Highlights

  • Supports 128GB DDR4 across eight slots for large workloads
  • Quad-channel memory architecture increases bandwidth for demanding applications
  • Three PCI Express 3.0 x16 slots enable multi-GPU configurations
  • Ultra M.2 socket delivers up to 32Gb/s for fast storage
  • Dual Gigabit LAN with Intel and Qualcomm Atheros controllers provides redundant networking

Specifications

BrandASRock
ModelX99 Extreme6
CPU Socket TypeLGA 2011-v3
ChipsetIntel X99
Onboard Video ChipsetNone
Number of Memory Slots8x288pin (DDR4)
Memory StandardDDR4 3000+(OC) / 2933+(OC) / 2800(OC) / 2400(OC) / 2133 / 1866 / 1600 / 1333 / 1066
Maximum Memory Supported128GB
Channel SupportedQuad Channel
PCI Express 3.0 x163 x PCI Express 3.0 x16 Slots (PCIE1 @ x16 mode; PCIE3 @ x16 mode; PCIE5 @ x8 mode)*
*If you install CPU with 28 lanes, PCIE1/PCIE3/PCIE4 will work at x16/x8/x4 and 3-Way SLI is not supported. To support 3-Way SLI, please install CPU with 40 lanes.
PCI Express x12 x PCI Express 2.0 x1 Slots
Mini Card Slots1 x mini-PCI Express Slot
Serial ATA (SATA)10 x SATA 6Gb/s
M.21 x Ultra M.2 Socket, supports M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)
SATA RAIDRAID 0, RAID 1, RAID 5, RAID 10 and Intel Rapid Storage 13
Audio ChipsetRealtek ALC1150
Audio Channels7.1 Channels
LAN Chipset1 x Intel I218V (Gigabit LAN PHY 10/100/1000 Mb/s)
Second LAN Chipset1 x Qualcomm? Atheros AR8171 (PCIE x1 Gigabit LAN 10/100/1000 Mb/s)
Max LAN Speed2 x 1Gbps
PS/21 x PS/2 keyboard/mouse port
RJ452 x RJ-45 LAN Ports with LED (ACT/LINK LED and SPEED LED)
USB 3.04 x USB 3.0 Ports (ASMedia ASM1074 hub) (Supports ESD Protection (ASRock Full Spike Protection))
2 x USB 3.0 Ports (ASMedia ASM1042) (Supports ESD Protection (ASRock Full Spike Protection))
USB 1.1/2.02 x USB 2.0 Ports (Supports ESD Protection (ASRock Full Spike Protection))
eSATA1 x eSATA
S/PDIF Out1 x Optical
Audio PortsHD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone
Onboard USB4 x USB 3.0 + 4 x USB 2.0
Other Connectors1 x Intel I218V (Gigabit LAN PHY 10/100/1000 Mb/s)
1 x COM Port Header
1 x TPM Header
1 x Power LED Header
2 x CPU Fan Connectors (1 x 4-pin, 1 x 3-pin)
3 x Chassis Fan Connectors (1 x 4-pin, 2 x 3-pin) (Smart Fan Speed Control)
1 x Power Fan Connector (3-pin)
1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
1 x HDD Saver Connector
1 x PCIe Power Connector
1 x Front Panel Audio Connector
1 x Thunderbolt AIC Connector
1 x Dr. Debug with LED
1 x Power Switch with LED
1 x Reset Switch with LED
1 x BIOS Selection Switch
Form FactorATX
Power Pin24 Pin
FeaturesASRock Super Alloy
- XXL Aluminum Alloy Heatsink
- Premium 60A Power Choke
- Premium Memory Alloy Choke
- Ultra Dual-N MOSFET (UDM)
- Nichicon 12K Platinum Caps
- Sapphire Black PCB
Supports Intel Core i7 and Xeon 18-Core Processors Family for the LGA 2011-3 Socket
Digi Power, 12 Power Phase design, Multiple Filter Cap (MFC)
Supports Quad Channel DDR4 3000+(OC) memory with max. capacity up to 128GB
Supports ECC*, RDIMM Memory (* ECC is supported with Intel Xeon processors)
3 PCIe 3.0 x16, 2 PCIe 2.0 x1, 1 mini-PCIe
Supports AMD 3-Way CrossFireX and NVIDIA 3-Way SLI
7.1 CH HD Audio wi
Package Contents1 x ASRock SLI_Bridge_2S Card
1 x ASRock 3-Way SLI-2S1S Bridge Card
Quick Installation Guide, Support CD, I/O Shield
4 x SATA Data Cables
1 x HDD Saver Cable
1 x Screw for Ultra M.2 Socket
1 x Screw for mini-PCIe Slot

Questions about this item

Does this board support quad-channel DDR4 memory?

Yes, it has eight DDR4 slots wired for quad-channel operation and supports up to 128 GB total capacity.

Can I run a three-way SLI setup with any LGA 2011-v3 CPU?

Three-way SLI requires a CPU with 40 PCIe lanes; a 28-lane CPU limits the third slot to x4 and disables 3-Way SLI.

What M.2 speeds are possible on the Ultra M.2 socket?

The socket accepts M.2 SATA 6 Gb/s modules and PCIe Gen3 x4 drives up to 32 Gb/s bandwidth.

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