Thanks to a recent leak over at Bodnara.co.kr (which has since been taken down), pictures emerged online that give a first look at an AMD socket AM4 motherboard using the mid-range B350 chipset. The Gigabyte B350M-DS3H is a Micro ATX motherboard supporting Bristol Ridge processors at launch and Zen-based processors next year.
The mid-range AM4 board has a very simple layout that leaves little mystery. There are no large heatsinks and no northbridge thanks to AMD moving most of the connectivity to the SoC itself. In fact there is only a small passively cooled chip in the bottom right corner (the B350 chipset) that between the SoC and it can offer up PCI-E 3.0, SATA 6.0, USB 3.1, USB 3.0, NVMe SSD, and DDR4 memory support. This post outlines how the duties are split between the processor and southbridge.
The B350M-DS3H is powered by a 24-pin ATX and 8-pin EPS and Gigabyte is using a seven phase VRM to power the processor and memory. The board hosts a 1331 pin AM4 socket up top with four DDR4 slots to the right. The CMOS battery is placed just above the PCI-E slots in a position that Morry would be proud of (so long as your CPU cooler is not too massive). Below that are two PCI-E 3.0 x16 slots (electrically x16/x4 or x8/x8), a single PCI-E 3.0 x1 slot, and a NVMe M.2 (PCI-E) slot. The bottom right corner of the board hosts six SATA 6 Gbps ports.
Rear I/O on the AMD motherboard includes:
- 2 x USB 2.0
- 1 x PS/2
- 3 x Video Outputs
- 1 x VGA
- 1 x DVI
- 1 x HDMI
- 4 x USB 3.0
- 2 x USB 3.1
- 1 x Gigabit Ethernet
- 3 x Audio Jacks
Several websites are reporting that AMD will be unleashing the floodgates of socket AM4 motherboards using the A320 and B350 chipsets in October (it is saving the launch of the enthusiast X370 chipset for next year alongside Summit Ridge). I have to say that it is nice to see an AMD motherboard with updated I/O which is a nice change from the ancient 990X AM3+ platform and even the FM2+ motherboards which were newer but still .ot as full featured as the competition.