Biostar introduced a trio of socket AM1 (FS1b) motherboards for AMD "Kabini" SoCs, the micro-ATX AM1MHP, AM1MH and AM1ML (pictured in that order). The AM1MHP features a narrow micro-ATX PCB, which draws power from a combination of 24-pin ATX and 4-pin CPU power connectors, and uses a 2+1 phase VRM to condition power. The AM1 socket is wired to two DDR3 DIMM slots, a PCI-Express 2.0 x16 slot, a PCIe 2.0 x1 slot, and a legacy PCI. A couple of SATA 6 Gb/s ports make for the storage connectivity. Display outputs include D-Sub and HDMI. Also included are legacy ports, such as COM and LPT, through headers.

Next up, are the AM1MH and AM1ML. The two are based on an identical PCB that's a variation of the the mini-ITX standard, in that it features a second add-on card slot, and differ only with the AM1ML lacking an HDMI port. Drawing power from 24-pin ATX and 4-pin CPU power connectors, the two offer PCI-Express 2.0 x16 and PCIe 2.0 x1 slots, and an otherwise identical feature-set to that of the AM1MHP.

ASRock announced a trio of socket AM1 motherboards for AMD's "Kabini" series APUs, Athlon and Sempron-branded CPUs, in the FS1b (AM1) package. The lineup includes the AM1B-M, a compact micro-ATX model; and two mini-ITX ones, the AM1H-ITX, and the AM1B-ITX. The AM1B-M draws power from a combination of 24-pin ATX and 4-pin ATX connectors, and uses a 3-phase VRM to power the APU. A PCI-Express 2.0 x16, and a PCIe 2.0 x1 make for its expansion slots. Connectivity includes two SATA 6 Gb/s ports, two USB 3.0 ports (rear), D-Sub display output, gigabit Ethernet, and 6-channel HD audio.

The AM1H-ITX, and the AM1B-ITX appear to be based on a common PCB design, but differ with connectivity. The former is gear towards modern connectivity options. It draws power from either a 24-pin ATX, or a 2-pin external DC input. The board is loaded with features, including HDMI and DVI display outputs, four SATA 6 Gb/s ports, four USB 3.0 ports, PCI-Express 2.0 x16 and mPCIe slots, and 8-channel HD audio. The latter is geared more towards essential/legacy connectivity. It features the same display outputs, but chucks out 2-pin power input, and 8-channel HD audio to make room for a parallel LPT port.

Look ma, no chipset! The first wave of AMD socket FS1b motherboards, for the company's A-Series "Kabini" APUs were displayed at the 2014 International CES, where they pulled good-eyed visitors that spotted motherboards that have CPU sockets but lack any form of core logic. That's because "Kabini" completely integrates the chipset. It turns out that AMD has decided to brand the socket - so far referred to as FS1b - as socket AM1. The socket is in no way compatible (even pin-compatible, or similarly sized) as AM2, AM3, and AM3+, on which AMD's processors have been sold for the bulk of the last 8-odd years.

With the chipset completely integrated into the APU silicon, the socket is left with pins for the memory, PCI-Express, display, SATA, power, and other legacy I/O interfaces. Among the first "Kabini" APUs that AMD plans to launch are the quad-core A4-5350, with 1.60 GHz clock speed, 2 MB of cache, and 25W TDP; the A4-3850, with slightly lower 1.30 GHz clocks; and E1-2650, with its dual-core 1.45 GHz CPU, 1 MB cache, and 15W TDP.