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ATX motherboard with black PCB, silver heatsinks and four DDR5 slots

ASRock

ASRock B860 Challenger WiFi Intel motherboard

SKU CH-6JD0-X6FRH MPN B860 Challenger WiFi

ATX board for Intel Core Ultra Series 2 CPUs with DDR5 up to 8666 MT/s, PCIe 5.0 x16, one Gen5 M.2, one Gen4 M.2, four SATA ports, Dragon RTL8125BG LAN and 7.1 audio

  • CPU Socket TypeLGA 1851
  • CPU TypeIntel Core Ultra Processors (Series 2)
  • ChipsetIntel B860
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardSupports up to 8666+(OC)
  • Maximum Memory Supported256GB
  • Supports Intel Core Ultra Series 2 processors on LGA 1851 socket
  • DDR5 memory scales to 8666 MHz overclocked with XMP 3.0 profiles
  • Primary PCIe 5.0 x16 slot delivers 16 lanes for modern graphics cards
  • CPU-attached M.2 socket runs at Gen5 x4 for 128 Gb/s storage bandwidth
  • Four SATA 6 Gb/s ports with RAID 0, 1, 5, 10 support

Socket LGA 1851 ATX board

The ASRock B860 Challenger WiFi is an ATX motherboard built for Intel Core Ultra Processors (Series 2) on the LGA 1851 socket. It targets builders who want a full-size platform with modern connectivity and room for high-capacity memory. The Intel B860 chipset handles platform duties while the board delivers a standard ATX layout.

DDR5 memory ceiling

Four 288-pin DDR5 slots support up to 256GB in dual-channel mode with Intel XMP 3.0 profiles. Native speeds reach 5600 MHz; overclocked limits vary by population: 1DPC 1R hits 8666+ MHz, 1DPC 2R hits 6800+ MHz, 2DPC 1R hits 6533+ MHz, and 2DPC 2R hits 5600+ MHz. Clocked Unbuffered DIMM (CUDIMM) modules are supported.

PCIe 5.0 M.2 and x16 slot

A CPU-attached Blazing M.2 socket (M2_1) runs at PCIe Gen5x4 (128 Gb/s) for 2280 drives, while the chipset Hyper M.2 socket (M2_2) runs at Gen4x4 (64 Gb/s) for 2230/2242/2260/2280 drives. The primary PCIe 5.0 x16 slot operates at x16 mode; a second PCIe 4.0 x16 slot from the chipset operates at x4 mode. Four SATA 6Gb/s ports with RAID 0/1/5/10 complete the storage array.

Põhijooned

  • Supports Intel Core Ultra Series 2 processors on LGA 1851 socket
  • DDR5 memory scales to 8666 MHz overclocked with XMP 3.0 profiles
  • Primary PCIe 5.0 x16 slot delivers 16 lanes for modern graphics cards
  • CPU-attached M.2 socket runs at Gen5 x4 for 128 Gb/s storage bandwidth
  • Four SATA 6 Gb/s ports with RAID 0, 1, 5, 10 support

Tehnilised andmed

BrandASRock
ModelB860 Challenger WiFi
CPU Socket TypeLGA 1851
CPU TypeIntel Core Ultra Processors (Series 2)
ChipsetIntel B860
Number of Memory Slots4x288pin (DDR5)
Memory StandardSupports up to 8666+(OC)
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileIntel XMP 3.0
ECC SupportedNon-ECC
Buffer SupportedUn-buffered
Memory FeatureSupports Clocked Unbuffered DIMM (CUDIMM)
1DPC 1R Up to 8666+ MHz (OC), 5600 MHz Natively.
1DPC 2R Up to 6800+ MHz (OC), 5600 MHz Natively.
2DPC 1R Up to 6533+ MHz (OC), 4800 MHz Natively.
2DPC 2R Up to 5600+ MHz (OC), 4400 MHz Natively.
PCI Express 5.0 x16CPU:
- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode
PCI Express 4.0 x16Chipset:
- 1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode
Serial ATA (SATA)4 x SATA 6Gb/s
M.2CPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode*
Chipset:
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2230/2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode*
- 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode*
*Supports Intel Volume Management Device (VMD)
Supports NVMe SSD as boot disks
SATA RAIDSupports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices
Audio Channels7.1 Channels
LAN ChipsetDragon RTL8125BG
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports2 x Antenna Ports
1 x HDMI Port
1 x USB 3.2 Gen1 Type-C Port
6 x USB 3.2 Gen1 Ports (USB32_56 are Lightning Gaming Ports.)
2 x USB 2.0 Ports
1 x RJ-45 LAN Port
1 x BIOS Flashback Button
HD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen1 Header
Other Connectors1 x SPI TPM Header
1 x Power LED and Speaker Header
1 x RGB LED Header*
3 x Addressable LED Headers**
2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)***
4 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)***
1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)***
1 x Front Panel Audio Connector
*Supports in total up to 12V/3A, 36W LED Strip
**Support in total up to 5V/3A, 15W LED Strip
***CPU_FAN1 supports the fan power up to 1A (12W).
CPU_FAN2, CHA_FAN1~4 and AIO_PUMP support the fan power up to 3A (36W).
CPU_FAN2, CHA_FAN1~4 and AIO_PUMP can auto detect if
BIOS Feature256Mb AMI UEFI Legal BIOS with GUI support
SoftwareSoftware
- ASRock Motherboard Utility (A-Tuning)
- ASRock Dragon 2.5G LAN Software
- ASRock Polychrome SYNC*
UEFI
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock My Favorites in UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24 pin ATX Power Connector
2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
FeaturesSuperb Productivity
- PCIe Gen5 (Graphics, M.2)
- Dual Channel DDR5
Rock-Solid Durability
- 10+1+1+1+1 Power Phase, Dr.MOS for VCore+GT+SA
- Pre-Installed I/O Shield
Ultrafast Connectivity
- 2.5G LAN, 802.11be Wi-Fi 7 Module
- ASRock Lightning Gaming Ports
EZ Update
- BIOS Flashback Button
- ASRock Auto Driver Installer
EZ Troubleshooter
- ASRock Post Status Checker
Package Contents2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas
1 x Screw for M.2 Socket
1 x Standoff for M.2 Socket
Tarnekaal1.86 kg
Pakendi mõõtmed356 × 279 × 76 mm

Küsimused selle toote kohta

Should I populate two or four DDR5 slots to hit the highest memory speeds on this board?

With one DIMM per channel (1DPC 1R) the board reaches 8666 MHz overclocked and 5600 MHz native. Filling all four slots drops the ceiling to 5600 MHz overclocked and 4400 MHz native.

What does the 8666 MHz memory figure actually deliver once the system is built?

That speed is an overclocked ceiling for a single-rank kit in two slots. Real-world throughput depends on the memory kit, CPU memory controller and cooling; most stable daily configs run lower.

Which M.2 slot uses PCIe 5.0 and what bandwidth does it provide?

The CPU-connected Blazing M.2 socket (M2_1) runs Gen5 x4, delivering 128 Gb/s. The chipset Hyper M.2 sockets run Gen4 x4 at 64 Gb/s.

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