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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

  • CPU Socket TypeLGA 1150
  • CPU TypeIntel Core i7 LGA 1150 ProcessorIntel Core i5 LGA 1150 Proce
  • ChipsetIntel H81
  • Onboard Video ChipsetSupported only by CPU with integrated graphic
  • Number of Memory Slots2x240pin
  • Memory StandardDDR3 1600/ 1333/ 1066
  • 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.

Highlights

  • 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

Specifications

BrandBIOSTAR
ModelH81A
CPU Socket TypeLGA 1150
CPU TypeIntel Core i7 LGA 1150 ProcessorIntel Core i5 LGA 1150 ProcessorIntel Core i3 LGA 1150 ProcessorIntel Pentium LGA 1150 ProcessorMaximum CPU TDP (Thermal Design Power): 95W
ChipsetIntel H81
Onboard Video ChipsetSupported only by CPU with integrated graphic
Number of Memory Slots2x240pin
Memory StandardDDR3 1600/ 1333/ 1066
Maximum Memory Supported16GB
Channel SupportedDual Channel
PCI Express 2.0 x161 x PCI Express 2.0 x16
PCI Express x15 x PCI-E 2.0 x1 Slot
Serial ATA (SATA)2 x SATA 6Gb/s
Audio ChipsetRealtek ALC892
Audio Channels8 Channels
LAN ChipsetRealtek RTL8111G
Max LAN Speed1Gbps
Back I/O Ports2 x PS/2 / 2 x USB 2.0/1.1 / 2 x USB 3.0
PS/21 x PS/2 Mouse1 x PS/2 Keyboard
Video PortsD-Sub + DVI
RJ451 x RJ45
USB 3.02 x USB 3.0
USB 1.1/2.02 x USB 2.0
Audio Ports3 Ports
Onboard USB2 x USB 2.0 Headers
Other Connectors1 x Printer Header1 x Front Audio Header1 x Front Panel Header1 x S/PDIF-Out Header1 x CPU Fan Header2 x System Fan Headers1 x Serial Header1 x CIR Header
Form FactorATX
Dimensions (W x L)11.6" x 8.3"
FeaturesSupport the Intel 4th generation Core i7 and Core i5 processors in the 1150 packageIntel H81 single chip architectureSupport 2-DIMM DDR3-1600/ 1333 up to 16G maximum capacity100% X.D.C solid capacitorIntel Rapid Start TechnologyIntel Smart Connect TechnologyH/W MONITORING:CPU / System Temperature MonitoringCPU / System Fan MonitoringSmart / Manual CPU Fan ControlSystem Voltage MonitoringOS SUPPORT:Support Windows 7 / 8 / 8.1 / 10 (x64)BUNDLE SOFTWARE:BIO-Remote2BIO-RemoteSmart Speed LAN
Package ContentsACCESSORIES:2 x SATA Cables1 x I/O Shield1 x DVD Driver1 x User Manual

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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