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ATX motherboard with six PCI-E x1 slots, black PCB and silver heatsinks

Biostar

Biostar TB250-BTC LGA 1151 Intel B250 ATX Motherboard

SKU CH-5Y4W-0B5E7

An ATX motherboard with six PCI-E x1 slots and six SATA 6Gb/s ports, built for multi-GPU mining rigs on LGA 1151

  • CPU Socket TypeLGA 1151
  • CPU TypeCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
  • Supported CPU Technologies* Not Compatible with Intel 8th Gen CPUs
  • ChipsetIntel B250
  • Number of Memory Slots2x288pin (DDR4)
  • Memory StandardDDR4 2400/ 2133/ 1866* DDR4 2400 for 7th Generation Intel Co
  • Supports up to six graphics cards via five PCIe x1 slots and one PCIe x16 slot
  • Runs seventh-generation Core i7, i5, i3, Pentium or Celeron processors on LGA 1151 socket
  • Accepts DDR4 memory at 2400, 2133 or 1866 MT/s across two 288-pin slots
  • Provides six SATA 6 Gb/s ports plus one M.2 Key M connector for 2242, 2260 or 2280 drives
  • Delivers 8-channel audio through Realtek ALC887 and gigabit LAN via Realtek RTL8111H

Mining-focused LGA 1151 platform

The Biostar TB250-BTC is an ATX motherboard built around the Intel B250 chipset for socket LGA 1151 processors. It accepts Core i7, i5, i3, Pentium and Celeron CPUs from the 6th and 7th generations. Eight-generation chips are not supported. The layout provides one full-length PCI Express 3.0 x16 slot plus five PCI Express x1 3.0 slots that can be switched to 1.0 speed in the BIOS for mining stability.

Six expansion slots for multi-GPU rigs

This board suits builders who need to run several graphics cards from a single CPU for cryptocurrency mining or compute workloads. The x1 slots are spaced to accommodate riser cables. Users who require more than two memory modules, integrated Wi-Fi, or support for newer Intel processors should choose a different platform. The single x16 link and dual-channel memory limit also make it a poor fit for modern gaming builds.

Dual-channel DDR4 with two DIMM slots

Memory support tops out at DDR4 2400 when a 7th-generation Core CPU is installed; 6th-generation processors run at 2133 or 1866. Only two 288-pin slots are provided, capping total system memory at 32 GB. If your workload demands four slots or higher memory bandwidth, this motherboard will not meet the requirement.

Highlights

  • Supports up to six graphics cards via five PCIe x1 slots and one PCIe x16 slot
  • Runs seventh-generation Core i7, i5, i3, Pentium or Celeron processors on LGA 1151 socket
  • Accepts DDR4 memory at 2400, 2133 or 1866 MT/s across two 288-pin slots
  • Provides six SATA 6 Gb/s ports plus one M.2 Key M connector for 2242, 2260 or 2280 drives
  • Delivers 8-channel audio through Realtek ALC887 and gigabit LAN via Realtek RTL8111H

Specifications

BrandBIOSTAR
ModelTB250-BTC
CPU Socket TypeLGA 1151
CPU TypeCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
Supported CPU Technologies* Not Compatible with Intel 8th Gen CPUs
ChipsetIntel B250
Number of Memory Slots2x288pin (DDR4)
Memory StandardDDR4 2400/ 2133/ 1866* DDR4 2400 for 7th Generation Intel Core Processor Family
PCI Express 3.0 x161 x PCI Express 3.0 x16
PCI Express x15 x PCI-E x1 3.0 Slot (using for bitcoin mining, it is suggested to change to PCI-E 1.0 via BIOS)
Serial ATA (SATA)6 x SATA 6Gb/s
M.21 x M.2 Key M 32Gb/s Connector, support M.2 type 2242/ 2260/ 2280 SATA 6Gb/s & PCIe Storage
Audio ChipsetRealtek ALC887
Audio Channels8 Channels
LAN ChipsetRealtek RTL8111H
Max LAN Speed1Gbps
Back I/O Ports2 x PS/2 / 4 x USB 2.0/1.1 / 4 x USB 3.0
PS/21 x PS/2 Mouse1 x PS/2 Keyboard
Video Ports1 x DVI-D Connector, resolution up to 1920 x 1200 @60Hz
RJ451 x RJ45
USB 3.04 x USB 3.0
USB 1.1/2.02 x USB 2.0 Port2 x USB 2.0 Port (only 5V power, up to 1.5A)
Audio Ports3 x Audio Connector
Onboard USB1 x USB 3.0 Header2 x USB 2.0 Header
Other Connectors1 x SATA Power Connector (for rear USB power enhancement)1 x Front Audio Header1 x Front Panel Header1 x CPU Fan Header2 x System Fan Header1 x Serial Header2 x PCI-E 12V 4-Pin Connector (Must be installed when using for bitcoin mining.)
Form FactorATX
Dimensions (W x L)11.6" x 8.3"
FeaturesH/W MONITORING:CPU / System Temperature MonitoringCPU / System Fan MonitoringSmart / Manual CPU Fan ControlSystem Voltage MonitoringOS SUPPORT:Support Windows 10 (x64) for Intel 7th Generation Processor* Support Windows 7 / 8.1 (x64) / 10 (x64) for Intel 6th Generation ProcessorBUNDLE SOFTWARE:BullGuardSmart Speed LAN (Windows 7/ 8.1 only)Intel Rapid Storage TechnologyFEATURES:Supports 100% Solid capacitorSupports Charger BoosterSupports BIOS Online Update
Package ContentsACCESSORIES:2 x SATA Cable1 x I/O Shield1 x DVD Driver1 x User Manual

Questions about this item

What PCIe standard does the M.2 Key M 32Gb/s connector use?

The M.2 Key M connector supports SATA 6Gb/s and PCIe storage at 32Gb/s bandwidth.

What are the physical dimensions and mounting requirements for this ATX motherboard?

The board uses standard ATX form factor with 288-pin DDR4 memory slots and requires an ATX-compatible case with matching standoff positions.

How do you configure the PCI-E x1 slots for mining and what BIOS change is commonly missed?

Enter BIOS and change the five PCI-E x1 3.0 slots to PCI-E 1.0 mode, which is the step many builders overlook when setting up multiple GPUs.

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