It seems that Asus is upping their mining motherboard game with a successor of their Asus B250 Mining Expert Motherboard with 19 PCI-E Slots. The new mining motherboard is called Asus H370 Mining Master and comes with support for up to 20 GPUs using direct PCIe over USB connections. The presence of USB connectors directly fitted on the motherboard simplifies connectivity by letting USB riser cables plug directly into the PCB and this direct connection is sturdier than using a PCIe card, with less chance of inadvertent disconnects, and it also reduces the total number of parts in your rig.

You may notice that aside the 20 USB 3.0 connectors on the motherboard there is also a single PCI-E x16 slot, however this does not mean you are able to have a 21st GPU. The PCI-E x16 slot and the first USB 3.0 connector are labeled A01 and that share the same PCI-E lane, so you can have only one of them working with a GPU, not both at the same time.

The Asus H370 Mining Master motherboard includes a suite of diagnostic features designed to make your farm easier to diagnose and manage in case of problems. A very useful one is the GPU State Detection (available in the Asus B250 Mining Expert as well), which scans the system at boot and indicates whether each riser port is empty, connected to a functional graphics card, or experiencing problems. The updated State Detection GUI clearly identifies the location and status of each port along with the alphanumeric code that identifies it. To further streamline troubleshooting, the board will ship with matching alphanumeric labels to stick onto corresponding riser cards. You’ll be able to quickly look at the labels to find flagged GPUs instead of being forced to trace the path of cables connected to affected ports.

Asus H370 Mining Master Specifications:
– Size: ATX, 12″ x 9.1″
– Socket: LGA 1151 for Intel 8th Gen Core, Pentium, and Celeron processors
– Memory: 2 x DIMMs (max. 32GB), DDR4 2666/2400/2133MHz, Non-ECC, unbuffered memory
– Slots: 1 x PCIe x16
– Storage: 2 x Serial ATA 6Gbps
– Networking: 1 x Intel Gigabit LAN
– GPU riser ports: 20 x PCIe over USB (vertical)
– USB ports: 6 x USB 3.1 Gen 1, 4 x USB 2.0/1.1
– Other: 1 x COM header

Efficient mining also requires a few UEFI tweaks that are consolidated in a special Mining Mode on the motherboard. The PCIe lanes are set to run at Gen 1 speeds to improve compatibility and stability with USB riser cards, the Above 4G Decoding is enabled, which is critical for supporting lots of graphics cards, and Launch CSM is disabled, which lets the motherboard and graphics UEFIs synchronize with each other. Mining Mode is activated by default, so you’re ready to go right out of the box, without having to mess around in the firmware interface… after all this is a dedicated mining motherboard and it should be ready out of the box.

Just like the predecessor B250 Mining Expert the new H370 Mining Master comes with a trio of 24-pin primary power supply connectors, so you can connect to up to three PSUs simultaneously. Each one is tied to a separate bank of riser ports, allowing you to scale up the number of GPUs gradually and add more power as needed. Some motherboards require modifications and special startup sequences to run on multiple PSUs, but the Master is tailored for the task. All that’s required is for the PCIe power connector on each graphics cards to be plugged into the same power supply as the corresponding riser port.

There is no information yet about pricing and availability of the motherboard, just that Asus plans to have it be available later this year. However Asus H370 Mining Master will be demonstrated running at full capacity in a custom mining rig being unveiled at Computex 2018 in Taipei, Taiwan from June 5-9.

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