SuperO C7Z370-CG-IW Visual Inspection

Our first close up of the Mini-ITX sized board shows us there is a lot squeezed in this tiny amount of space. The board chooses a rather plain design without any aesthetic stenciling allowing for easy integration into most systems. We can see the 4+2 phase power delivery at the 9 o'clock and 12 o'clock positions around the socket as well as a rather thin, but tall, silver-colored heatsink on top of the four phases on the left. This C7Z370 has two reinforced DRAM slots able to support up to 32GB of DDR4 in dual channel mode. The single PCIe slot is also reinforced and receives the full x16 bandwidth from the CPU. 

Most headers on the board are found across the top, including the 8-pin EPS 12V, RGB header, two fan headers, and the front panel header are all across the top. Also along the top are a couple of LEDs for NIC activity as well as fan failure headers - features more typically associated with server level boards. The right side contains the 24-pin ATX 12V connector as well as four SATA ports. The chipset heatsink sits directly above the PCIe slot with the first M.2 slot stretching across it over the 'SuperO' name (second M.2 slot is on the back of the board). 

The C7Z370's RGB LED implementation comes from 12 LEDs located on the back side of the board under the 24-pin ATX connector extending down the length of the board to the SATA connectors. Outside of that, the board is void of other aesthetic RGB LEDs. The RGB LEDs are addressable in three groups of four and controlled by the SuperOBoost software. 


The SuperO C7Z370-CG-IW has a total of two fan 4-pin fan headers both located across the top of the motherboard. Each header supports both DC and PWM control and can be controlled through the BIOS or the SuperOBooster application. Though it only has two headers, each header supports a maximum of 2.5A (30W) output which allows users to piggyback a couple of fans onto one header. 

The VRM is a 4+2 phase configuration with four responsible for delivering power to the CPU Vcore and the other two assigned for the iGPU. This is the first time we have seen power delivery parts all made from Monolithic Power Systems. The board uses an MPS MP2955V digital multiphase controller working in conjunction with the MP86908 50A Intelli-Phase integrated power stage. The other voltage domains including VCCSA, VCCIO, and Memory use MPQ8633 step down controllers rated at 12A each. 

The right side of the board holds the 24-pin ATX connector and the four vertically oriented SATA ports. On the other side of the DRAM slots close to the PCIe slot is a front panel USB 3.0 header. Outside of that, there isn't too much to see outside of some power bits in between. 

A closeup of the four SATA ports. The Z370 platform supports up to six SATA ports, but due to a lack of board real estate and to eliminate port sharing with the M.2 devices, SuperO chose to use four. Between the two M.2 devices and four SATA ports, this should be plenty for most users, particularly those using this for gaming or an HTPC. What could be said about these ports however is that due to the way that SATA cables use latching mechanisms, in this orientation it means that any user wanting to remove a cable from the ports on the bottom will have to remove the cable from the top port first. There are ways to design around this.


The bottom picture shows a close up of the reinforced PCIe slot as well as a the jumpers below it. The jumpers include chassis intrusion, ME manufacturer mode, clear CMOS, and an OC button. 

The back panel IO is devoid of many colors outside of the USB but has most of what we come to expect from a mid-range motherboard. From left to right we have:

  • PS/2 Keyboard/Mouse Port
  • 4 x USB 3.0 ports
  • HDMI (2.0) / DisplayPort
  • 1 x Wi-Fi
  • 1 Intel GbE
  • 2 x USB 3.1 (10 Gbps) ports Type-A and Type-C
  • 7.1-Channel Audio jacks

In the Box

Second-tier motherboard manufacturers like Supermicro are not as keen on adding items into the box as others - here we get the standard set of materials, including SATA cables and Wi-Fi antennas. Interestingly we do get four SATA cables, one for each port, which is perhaps a little unexpected.

  • Motherboard
  • I/O Shield
  • Quick Reference Guide
  • 4 x SATA Cables
  • Driver CD
  • Metal Badge
  • Cable Stickers
  • Wi-Fi + BT Antenna

Supermicro C7Z370-CG-IW Overview BIOS and Software
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  • Roen - Monday, April 30, 2018 - link

    Still the only 300 series ITX board to have Gen 2 Type A and Type C ports available.

    Surprised that this spec is so difficult to achieve.
  • DanNeely - Monday, April 30, 2018 - link

    It's another chip to be squeezed onto a board lacking in room for chips.
  • Halfnidea - Wednesday, May 2, 2018 - link

    I'm sorry but I have an issue with the use of the word: "Still" Btw, I had installed a Biostar X370 GTB 2 months ago. Gen 2 USB A and C - confirmed. Not taking my word for it? Small Form Factor did an article back in September; where i learned about it as well.
  • Roen - Thursday, May 17, 2018 - link

    Let me rephrase: Intel 300 series.
  • Beaver M. - Tuesday, May 1, 2018 - link

    A board like that should still have a mPCIe slot. Theres just too many useful mPCIe cards available and they are not available as M.2 yet.
  • Woomack - Monday, May 7, 2018 - link

    Re Overclocking, LLC have to set separately for AC/DC and you configure it in Advanced tab/GT Slice ( don't ask me why there and not in CPU OC tab ). It affects CPU and IGP. I have no idea why they made it this way but it works.
    I was able to set 5.1GHz on 8600K / AIO cooler, for my review couple of weeks ago.
    Max OC profile which was stable for me was 4.8GHz. Like pick from the list, save settings and it works.
    Max stable memory clock was DDR4-3866, max boot with single stick DDR4-4000.

    Overclocking on this board isn't easy but it's also not so bad once you figure out all settings.
  • Roen - Thursday, May 17, 2018 - link

    Run any power draw test to see if your OC hits current limit throttling in XTU.

    Run memtest86 and see if you have any errors.

    I can't get above 4.5 GHz non-AVX, 4.0 GHz AVX, and 2666 MHz to pass memtest86, with screenshots to prove. Using delidded 8700K and multiple Samsung B-die kits.

    I actually have issue with many of the reviews out there not properly pushing the board to its limits to identify its weaknesses. Anandtech review completely mirrors my experience.

    An OC isn't stable if it has more failure conditions than stock, that's my OC philosophy and that's how I test my boards.
  • Roen - Thursday, May 17, 2018 - link

    I can't get above 4.5 GHz non-AVX, 4.0 GHz AVX in Prime95 before current throttling hits in XTU.
  • Roen - Thursday, May 17, 2018 - link

    Prime95 and memtest86 should be the minimum tests that people run, evne if they are unrealistically strict. Stock chips / boards can pass these tests with flying colors, OC'ed things should be able to as well, if they are to be called stable.
  • Rene23 - Wednesday, May 9, 2018 - link

    It's using the wrong platform, need X470 AM4 instead, ..! ;-)

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