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Green ATX motherboard with multiple white PCI-E x1 slots and a black CPU socket area

Biostar

Biostar H81A LGA 1150 Intel H81 ATX motherboard for cryptocurrency mining

SKU CH-12CP-JM144

An LGA 1150 ATX board with six PCI-E 2.0 slots, dual-channel DDR3 support up to 16 GB and 95 W TDP limit, built for cryptocurrency mining rigs

  • ProcessorIntel Core i7 LGA 1150 ProcessorIntel Core i5 LGA 1150 Proce
  • ChipsetIntel H81
  • Form factorATX
  • CPU socketLGA 1150
  • Onboard video chipSupported only by CPU with integrated graphic
  • Memory slot count2 × 240pin
  • Supports LGA 1150 CPUs up to 95 W TDP
  • Five PCI Express 2.0 x1 slots for multi-GPU mining rigs
  • Dual-channel DDR3 up to 16 GB at 1600 MHz
  • Realtek ALC892 8-channel audio with gigabit LAN
  • Two SATA 6 Gb/s ports plus USB 3.0 and USB 2.0/1.1 connectivity

Biostar H81A LGA 1150 Mining Board

The Biostar H81A is an ATX motherboard built around the Intel H81 chipset for LGA 1150 processors up to 95 W TDP. It provides two DDR3 slots supporting 1600, 1333 or 1066 MT/s and a maximum of 16 GB in dual-channel mode. The layout includes one PCI Express 2.0 x16 slot and five PCI Express 2.0 x1 slots intended for multi-GPU mining rigs.

Suited For Multi-GPU Mining Builds

This board suits builders assembling cost-focused mining systems that need six PCIe slots on a standard ATX form factor. It is not suited for users requiring modern storage interfaces, more than two memory slots or CPU support beyond the LGA 1150 platform.

Six PCIe Slots On One ATX Board

The defining specification is the combination of one PCI Express 2.0 x16 slot and five PCI Express 2.0 x1 slots on a single ATX PCB. That density lets you connect up to six graphics cards for mining without using riser boards on a second motherboard.

How it compares

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

Price $65.99
Cheaper than about 73% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameBIOSTAR
Model nameH81A
Processor
ProcessorIntel Core i7 LGA 1150 ProcessorIntel Core i5 LGA 1150 ProcessorIntel Core i3 LGA 1150 ProcessorIntel Pentium LGA 1150 ProcessorMaximum CPU TDP (Thermal Design Power): 95 W
CPU socketLGA 1150
ChipsetIntel H81
Memory
Memory slot count2 × 240pin
Supported memoryDDR3 1600/ 1333/ 1066
Max supported RAM16 GB
Memory channelsDual Channel
Storage
SATA ports2 x SATA 6Gb/s
Graphics
Onboard video chipSupported only by CPU with integrated graphic
Audio & video
Audio chipRealtek ALC892
Sound channels8 Channels
Connectivity
Ethernet controllerRealtek RTL8111G
Maximum network speed1 Gbit/s
Ports & slots
PCIe x1 slots5 x PCI-E 2.0 x1 Slot
Rear panel ports2 x PS/2 / 2 x USB 2.0/1.1 / 2 x USB 3.0
PS/2 ports1 x PS/2 Mouse1 x PS/2 Keyboard
Video connectorsD-Sub + DVI
Ethernet port1 x RJ45
USB 3.0 ports2 x USB 3.0
USB 2.0 ports2 x USB 2.0
Audio jacks3 Ports
Onboard USB headers2 x USB 2.0 Headers
Size & build
Form factorATX
Width and length11.6 in × 8.3 in
In the box
In the boxACCESSORIES:2 x SATA Cables1 x I/O Shield1 x DVD Driver1 x User Manual
More details
PCI express 2.0 x161 x PCI Express 2.0 x16

Questions about this item

How much power can the CPU socket deliver continuously before thermal limits become the bottleneck?

The LGA 1150 socket is rated for a maximum CPU TDP of 95W, so sustained loads above that level will hit the thermal ceiling first.

What noise or heat should be expected from the board itself when all six PCIe slots are populated and running 24/7?

The board has no active cooling of its own; heat and noise come from the CPU cooler and any graphics cards installed in the one PCIe 2.0 x16 and five PCIe 2.0 x1 slots.

Which memory kit is required to boot this board, given it has only two 240-pin slots?

You need DDR3 modules rated for 1600, 1333 or 1066 MT/s; the board supports up to 16 GB total in dual-channel mode across the two slots.

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