Mini-ITX SBC runs Linux on quad-core AMD R-Series APU
Aug 26, 2013 — by Eric Brown 7,530 viewsWin Enterprises announced a Mini-ITX single-board computer for digital imaging and other embedded applications, built around quad- and dual-core AMD Embedded R-Series APUs clocked at up to 2GHz. The Linux-friendly MB-73330 SBC features up to 16GB of DDR3 RAM, three HDMI ports and a DisplayPort, dual SATA 6.0 ports, eight USBs, dual gigabit Ethernet, and multiple PCIe and Mini-PCIe expansion options.
The MB-73330 is suited for application areas including advertising, medical, informational, infotainment, transportation, and industrial control, says Win Enterprises. Judging by the name, the MB-73330 should be quite similar to the Win Enterprises Intel 4th Generation Core-based MB-73320 single board computer (SBC). Yet aside from the common 6.7 x 6.7-inch Mini-ITX form-factor, there are more differences than similarities between the boards. Instead of using an Intel “Haswell” processor, the new MB-73330 uses AMD’s Embedded R-Series processors, which offer better graphics than AMD’s Embedded G-Series APUs.

Win Enterprises MB-73330 Mini-ITX SBC
(click image to enlarge)
Like the G-Series, AMD’s R-Series parts are dubbed APUs (accelerated processing units), in that they include integrated graphics, but no I/O controller hub. The R-Series offers integrated Radeon 7000G graphics, and a separate A70M or A75 I/O hub. The MB-73330 board supports the A75 I/O hub, which differs from the A70M in that it provides support for RAID storage and legacy PCI expansion in addition to PCI Express (PCIe). By contrast, the newer G-Series SoCs, as used in the company’s recently introduced MB-60830 SBC are full system-on-chips which also include an integrated controller hub.
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AMD Embedded R-Series (left) and G-Series platforms
(click images to enlarge)
The MB-73330 appears to support the full range of R-Series processors, including two dual-core and four quad-core models, ranging up to 2GHz (2.8GHz at boost frequency) in the case of the quad-core R-460L model. On Aug. 20, AMD added three more R-Series processors, but the new models are CPUs rather than APUs, and feature discrete GPUs, including new Radeon E6460 or E6760 chips. The new CPUs range up to the RE464X CPU, featuring four 2.3GHz (3.2GHz boost) cores and 35W TDP.
Both the AMD-based MB-73330 and Core-based MB-73320 Win Enterprises Mini-ITX boards offer up to 16GB of DDR3 RAM, but only the AMD-based MB-73330 offers a CFast socket and half-sized mSATA port for adding solid state drives. On the other hand, the board offers two SATA 6.0 ports instead of the MB-73320’s four, and it lacks the Intel board’s RAID support.
The MB-73330 provides three HDMI ports and a DisplayPort, instead of its Intel-based cousin’s single helpings of both ports, plus VGA and LVDS. The MB-73330 similarly furnishes four USB 3.0 ports, but only supplies four additional USB 2.0 ports instead of six.
Expansion is fairly similar. As with the MB-73320, additional USB signals can be fed through the full- and half-sized Mini-PCIe slots, and the half-sized slot can also carry a SATA interface. There’s also a standard PCIe slot, but it differs depending on two separate models. The MB-7333A supports a PCIe x16 configuration while the MB-7333B also supports a PCIe x1 configuration. The latter is available with an optional PCIe riser card that supports either PCIe x16 or legacy PCI boards.
Like the Intel-based MB-73320, the AMD-based MB-73330 offers dual serial ports, as well as audio and PS/2 ports. It lacks LPC support, however.
Specifications listed for the MB-73330 include:
- Processor — quad- and dual-core AMD Embedded R-Series with integrated Radeon-7000G graphics (PGA FS1r2 socket); AMD A75 chipset
- Memory — up to 16GB DDR3L 1600 via 2x 204-pin dual-channel slots
- Display — 3x HDMI, 1x DisplayPort
- Networking — 2x gigabit Ethernet ports
- Storage:
- 2x SATA 6.0 ports
- SSD — 1x CFast socket; 1 x half-size mSATA
- Other I/O:
- USB — 4x USB 3.0; 4x USB 2.0
- 2x RS232
- Audio in/out/mic
- PS/2 keyboard/mouse
- 8-bit DIO
- Expansion:
- full-size Mini-PCIe (with USB and PCIe x1 signals)
- half-size Mini-PCIe (with USB, PCIe x1, and SATA)
- PCIe (x16 on MB-7333A; x16 and x1 on MB-7333B)
- Optional riser card (MB-7333B only) with PCIe and PCI support
- Power — 8V to 32V DC input
- Operating temperature — 0 to 60°C (32 to 140°F)
- Dimensions — 6.7 x 6.7-inch (170 x 170mm); Mini-ITX form-factor
- Operating system support — Linux, Red Hat Linux, Windows Embedded Standard 7
No pricing or availability information was supplied. Further details may be found at the MB-73330 product page of the company’s website.
I really wish the product shots of these devices included the processor, heatsink, and (possible) fan.
We agree! And it would nice to always have functional block diagrams, too, since the data sheets are often created by nontechnical staff.
Anyone notice the soldered – non replaceable green battery halfway down the left side of the board? If that heats up – acid over the board. A lot of computers from the late 80’s / early 90’s did not survive due to an acid bath. Commodore systems with battery backup being primary victims :-(
If I were to use this, I would have to remove that and replace it with a vertical “button battery” holder. No acid and easily replaceable standard battery!