Visual Inspection

The Biostar X470GTN is a mini-ITX sized motherboard aimed at gamers looking to build a small form factor system or at least one with a smaller footprint in comparison to ATX. While we covered on the previous page the obvious similarities in design and aesthetics compared with the X370GTN we previously reviewed, the overall consensus is that both boards are indistinguishable other than the full length PCIe 3.0 x16 slot which gets a coating of Iron slot protection and the embedded chipset change from X370 to X470. Everything else from the RGB infused power delivery heatsink down to the rear panel input and output selection, and even layout is identical.

Memory support on the X470 comes via two slots laid out side by side, which allows for DDR4-3200 to be installed. A total capacity of up to 32 GB is supported with the AM4 socket allowing for dual-channel memory configurations to be used. Biostar does provide a basic list of compatible DDR4 memory which resembles a basic QVL support list, but they do state themselves that it’s not a full listing of supported memory sticks and should be used as a guide for testing. Biostar also does not state whether or not that this board supports ECC memory or not. Due to the sizing limitations associated with the mini-ITX form factor, Biostar has included a full-length PCIe 3.0 slot which operates at x16 with a Ryzen desktop processor and x8 when a Ryzen APU is installed. The full-length PCIe 3.0 slot has a coating of what Biostar call their 'iron slot' protection which is designed to protect the slot from physical damage associated from heavier graphics cards and during installation.

The power delivery on the Biostar X470GTN is rather decent for a board in its current price range and pedigree. The power delivery runs in a 4+3 configuration with an Intersil ISL95712 controlling things, while a total of seven Nikos PK612DZ dual N-channel MOSFETs and seven individual chokes are also present. Also featured is a total of three Intersil ISL6625A drivers with two provided for the CPU and a single driver is present for the memory/SoC section of the power delivery.

AM4 Motherboard Power Delivery Comparison
Motherboard Controller H-Side L-Side Chokes Doubler
ASRock B450 Gaming ITX/ac ISL95712 (6+2) 10 10 8 -
ASRock B450 Gaming K4 ISL95712 (3+3) 12 9 9 -
ASRock X470 Taichi Ultimate IR35201
16 16 16 8
Biostar X370GTN ISL95712
7 7 7 -
Biostar X470GTN ISL95712
7 7 7 -
Gaming 7 Wi-Fi
12 12 12 5
MSI X370 XPower Gaming Titanium IR35201
10 16 10 5

Biostar advertises an onboard LN2 switch in its marketing materials but the location of this on the PCB is unfortunately uncharted. Another feature not present is an external clock-generator but despite this, the BIOS does actually offer BCLK adjustment from 100 MHz to 107.3 MHz so even though the lack of an external clockgen might be a buying decision, the ability to change base clock is an option. Biostar may have mistakenly copied the marketing from the bigger X470GT8 which does physically include this switch designed for sub-zero overclockers. More extreme users looking at the Biostar X470GTN certainly won't be impressed by the 4+3 power delivery on offer and this has to be expected from what is a lower end X470 $130 mini-ITX motherboard. 

The power deliveries on both the Biostar X470GTN and the previous X370GTN mini-ITX motherboards are identical, even down to the slim and lightweight RGB laden MOSFET heatsink. The 4+3 configuration of this calibre is more than ample for a board of this pedigree, although users that don't make the use of a chassis with good airflow could potentially struggle when overclocking, especially at stock settings, but the small MOSFET heatsink covering the CPU area of the power delivery seems ample and causes no major areas of concern.

Biostar has included a total of four SATA ports which all feature straight-angled connectors. These are located in pairings, with one set to the bottom right-hand side of the two memory slots and the other two sitting to the right-hand side just above the full-length PCIe 3.0 x16 slot. The SATA ports support RAID 0, 1 and 10 arrays. Biostar has included a single M.2 but due to spacing limitations with the mini-ITX form factor, the slot is located on the rear of the PCB. The slot supports M.2 form factor drives up to and including M.2 2280, but Biostar doesn’t state, nor do they list this on the product page. Another factor for users to consider when using an M.2 slot on the rear is airflow. Some NVMe capable M.2 drives can run rather hot under load and the extra heat can quite easily cause throttling issues, so good airflow is paramount to strong and stable performance.

The onboard audio consists of a decent quality Realtek ALC892 eight-channel HD audio codec which is supplemented by a pairing of blue colored audio capacitors. There is a physical divide in the audio section of the PCB from the rest of the board which attempts enhance the quality of the onboard audio through less analog/digital inductance.

On the rear panel of the X470GTN motherboard is a basic and fairly standard set of outputs and inputs. USB support comes through two USB 3.1 Gen2 ports which consist of a Type-A and Type-C connector, with an additional four USB 3.1 Gen1 Type-A ports included. There are no native USB 2.0 ports on the rear, but users to expand the current USB real estate by a further two USB 3.1 Gen1 and two USB 2.0 ports due to internal headers. Users looking to utilize the Ryzen 2000 series APUs with this board can do so due to a pair of video outputs consisting of an HDMI 1.4 and DVI-D port. The five 3.5 mm gold plated audio jacks and single S/PDIF optical output is powered by the Realtek ALC892 HD audio codec whereas the LAN port is powered by the Realtek RTL8118AS Gigabit networking controller. Finishing off the rear panel of the X470GTN is a PS/2 combo keyboard and mouse port. 

What's in The Box

The Biostar X470GTN includes all of the basic accessories and essentials required to get started with the installation of a new system with a rear I/O shield, a glossy user manual, a driver installation disk and four straight angled SATA cables. This is the expected bundle of a $130 motherboard and represents an entry-level offering to the X470 chipset.

  • User manual
  • Driver installation disk
  • 4 x SATA cables (all straight-angled)
  • Rear IO shield
Biostar X470GTN Overview BIOS and Software
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  • Stuka87 - Wednesday, October 24, 2018 - link

    Just about every motherboard out offers a fast boot mode. My 4 year old desktop goes from power button being pushed to windows login screen in 6 seconds. My new laptop is pretty similar, and thats with Dell's bloated UEFI.
  • lightningz71 - Wednesday, October 24, 2018 - link

    Please, on ITX boards, can you conduct testing with a RYZEN 2400G? These are great boards for doing reasonable cost home entertainment and SFF builds with, and that's a solid use case for the 2400G. Testing the SOC VRMs for their comparive ability to support iGPU overclocks on those APUs would be invaluable.
  • jeremyshaw - Wednesday, October 24, 2018 - link

    Raven Ridge unified the CPU and GPU voltage rail.
  • gavbon - Wednesday, October 24, 2018 - link

    I can see where you are coming from, but our AM4 test bench is designed to test the motherboards on an even playing field with the same hardware. While users might consider the X470GTN as perfect for the 2400G, even I think it's suited, not every board has video outputs to test.
  • jensend - Thursday, October 25, 2018 - link

    No DisplayPort = instant disqualification. There's no excuse for this any more.

    Review sites should just send mobos that don't include DP back to the manufacturer or toss them in the trash bin. Send the message that it's not acceptable in 2018.

    Many ITX builds would benefit hugely from inexpensive and low-TDP graphics. Raven Ridge provides reasonable graphics power especially if used with adaptive sync. Cheap FreeSync monitors are plentiful but generally can only do FreeSync over DP not the FreeSync-over-HDMI proprietary hack. DisplayPort is royalty-free.

    A motherboard without displayport messes seriously with AMD's value propositions in the SFF space. Boards with DP should not be this scarce a full dozen years after DP's introduction.
  • PC Crazy - Thursday, October 25, 2018 - link

    Awesome review. To be honest, it doesn't need some extra special features which would pump up the price. As you wrote, this is a solid board for a nice price that can do a good OC and people with tighter budget can create a small but brilliant gaming machine. In any case, thanks for the review. Just what I needed if someone asked me for an AM4 miniITX build and what board to choose.
  • artifex - Monday, October 29, 2018 - link

    "The question could be asked why Biostar went with the X470 chipset over the B450 chipset as there are no specific X470 features that this board would benefit from over B450 due to the mini-ITX form factor, but from a marketing point of view, X470 comes across as a higher end chipset and from this aspect, it would make a lot of sense."

    And that's the real question for me, not how it's better than the x370 version. Your B450 roundup says the ASRock B450 Gaming-ITX/ac and ASUS ROG Strix B450-I Gaming each have a better audio codec (Realtek ALC1220), better NIC (Intel 1211AT), and Wi-Fi with bluetooth. The ASRock supports 3466+ speeds as opposed to this board's 3200+, has HDMI 2.0 and DP 1.2 as opposed to HDMI 1.4 and a DVI-D port, and the same number of SATA ports, the same number/style of 10 Gbps USB 3.1 slots. From the ASRock article it looks like this board does offer twice the 5Gbps USB 3.0 ports on the back panel, and 2 USB 2.0s on the back panel where the ASRock just has headers for the USB 2.0. The ASRock also has an 8-pin CPU power connector, not 4, and an extra system fan header. And you show it for the same MSRP of $130. The ASUS ROG I don't see a separate article for, but the roundup mentions an AIO connector and a bunch of blinky lights I don't care about and is probably way more expensive, but still: what makes this 470 board better than those two B450 ITX boards? Some extra USB ports on the back and DPC latency?
  • Brane2 - Tuesday, October 30, 2018 - link

    Another "meh" model.

    When will finally someone present ITX board utilizing graphic output to the maximum ?
    AM4 APUs have 4 graphic channel outputs.

    Gimme an ITX board with 3 or better yet 4 DP outputs and I'll imediately purchase couple.

    Funny enough, even FM2+ socket boards have had models with better video output options....

    Now that we have VERY decent APU with all that RAM bandwidth, 4 CPU kickass cores, 11 GPU cores and L3 cache, and above all with Ryzen 2 at the doors, and NO ITX board that would be able to give all that hardware to show all its potential...

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