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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

  • ProcessorCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
  • ChipsetIntel B250
  • Form factorATX
  • CPU socketLGA 1151
  • CPU technologies* Not Compatible with Intel 8th Gen CPUs
  • Memory slot count2 × 288pin (DDR4)
  • 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.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $179.99
Pricier than about 79% of the 2,965 comparable items (median $97.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameBIOSTAR
Model nameTB250-BTC
Processor
ProcessorCore i7 / i5 / i3 / Pentium / Celeron (LGA1151)
CPU socketLGA 1151
ChipsetIntel B250
CPU technologies* Not Compatible with Intel 8th Gen CPUs
Memory
Memory slot count2 × 288pin (DDR4)
Supported memoryDDR4 2400/ 2133/ 1866* DDR4 2400 for 7th Generation Intel Core Processor Family
Storage
SATA ports6 x SATA 6Gb/s
M.2 slots1 x M.2 Key M 32Gb/s Connector, support M.2 type 2242/ 2260/ 2280 SATA 6Gb/s & PCIe Storage
Audio & video
Audio chipRealtek ALC887
Sound channels8 Channels
Connectivity
Ethernet controllerRealtek RTL8111H
Maximum network speed1 Gbit/s
Ports & slots
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
PCIe x1 slots5 x PCI-E x1 3.0 Slot (using for bitcoin mining, it is suggested to change to PCI-E 1.0 via BIOS)
Rear panel ports2 x PS/2 / 4 x USB 2.0/1.1 / 4 x USB 3.0
PS/2 ports1 x PS/2 Mouse1 x PS/2 Keyboard
Video connectors1 x DVI-D Connector, resolution up to 1920 × 1200 @60 Hz
Ethernet port1 x RJ45
USB 3.0 ports4 x USB 3.0
USB 2.0 ports2 x USB 2.0 Port2 x USB 2.0 Port (only 5 V power, up to 1.5A)
Audio jacks3 x Audio Connector
Onboard USB headers1 x USB 3.0 Header2 x USB 2.0 Header
Size & build
Form factorATX
Width and length11.6 in × 8.3 in
In the box
In the boxACCESSORIES: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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