Supermicro C9Z390-CG-IW

The fourth and final Supermicro board from the quadruplet of Z390 motherboards is the smaller sized C9Z390-CG-IW. The C9Z390-CG-IW as the name suggests takes a lot of the important elements from the ATX sized C9Z390-CG and puts it in a mini-ITX sized frame. There is a full-length PCIe 3.0 x16 slot with steel slot reinforcement and the board also includes two PCIe 3.0 x4 M.2 slots; one on the front and one on the rear. Also included are four SATA ports which feature straight-angled connectors.

Usually with mini-ITX motherboards, one of the minor benefits is faster memory support due to the shorter tracks, but Supermicro is advertising the C9Z390-CG-IW to support up to DDR4-3866 which is the same as the other models barring the C9Z390-PGW which offers up to DDR4-4133.  The C9Z390-CG-IW also looks to have just two 4-pin fan headers which are, unfortunately, one of the pitfalls with the mini-ITX form factor; less space usually means fewer features and headers.

Controller wise the board is using a Realtek ALC1220 HD audio codec to power the five 3.5 mm audio jacks and S/PDIF optical output on the rear, an Intel I219V Gigabit controller for the single LAN port and a dual-band 802.11ac wireless networking adapter is also included. The rest of the rear panel is comprised of three USB 3.1 Gen2 Type-A, one USB 3.1 Gen2 Type-C, two USB 3.0 Type-A ports, a PS/2 combo port and a pair of display outputs consisting of a DisplayPort 1.2 and HDMI 2.0 ports.

The Supermicro C9Z390-CG-IW is the smallest of the four Z390 SuperO series motherboards and is designed to retain the similar power, performance and feature characteristics of the C9Z390-CG, but in a more compact mini-ITX frame. Most of what has been said looks to be true, but the obvious pitfalls come with a smaller and seemingly lower specification power delivery. This model does however retain the single 8-pin 12 V ATX CPU power input and the specifications indicate the same TDP support with up to a maximum of 120 W officially support from the CPU. The pricing and availability of the C9Z390-CG-IW is yet to be announced.

Supermicro C9Z390-CG Choosing The Right Z390 Motherboard
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  • gavbon - Thursday, October 11, 2018 - link

    I currently have the Supermicro C9Z390-PGW awaiting to go on the test bench next week, so from a consumers standpoint, I could potentially shed light on that board. As far as the Chinese/Supermicro/Spy scandal goes, I don't want to speculate without the finer details. Reply
  • eastcoast_pete - Wednesday, October 10, 2018 - link

    Ian & Gavin, thanks for the overview.
    @ both - Question: I've read that Intel, to deal with its bad planning/capacity problems on 14 nm, has contracted the fabbing of some of its chipsets out to TSMC, specifically in TSMC's 22 nm tech. Is that correct, and did you have a chance to confirm that the new 390s used by these boards are indeed made by Intel on their 14 nm FinFET tech, or are they made by a contractor (TSMC)?
    Reply
  • DanNeely - Wednesday, October 10, 2018 - link

    AFAIK the chipsets being reverted to 22nm are using Intel's 22nm process in old unupgraded fabs. Doing so would be far less work than porting to a process from a different company; the latter would require massive rework to follow a completely different set of design rules. Reply
  • eastcoast_pete - Thursday, October 11, 2018 - link

    Yes, you are correct, at least for H310c chipsets, maybe more (all?). I looked at the digitimes report on Intel outsourcing to TSMC, and that, if correct, would be about chipsets fabbed in 14nm. I wonder if Anadtech could check the 390s from the newest MoBos and sleuth out if they are also a case of "back to the future - 22 is the new 14 at Intel". Reply
  • peterfares - Wednesday, October 10, 2018 - link

    Still waiting for someone to make a mini-ITX board with 4x SODIMM slots. The X299 one is interesting combined with a 9800X but I'd rather have the newer architecture with better IPC and clocks. Reply
  • gavbon - Thursday, October 11, 2018 - link

    4 x SODIMMs has no performance benefit on Z370/Z390 other than a capacity increase because of the dual channel memory controller. The ASUS Z390 Maximus Gene and Strix Z390-I support the new 32GB double capacity SODIMMs to give more options for mini-ITX users needing more capacity.

    The X299 ASRock board put 4 x RAM slots on it so it could benefit from the quad channel memory controller
    Reply
  • gamingkingx - Friday, October 12, 2018 - link

    Gavon understands it..

    On ITX its all about how you use the space.. It would be sille to have 4 slots for dual channel.

    BUT! It would interesting to use only 2x SO-DIMM..
    Reply
  • cyrilp - Thursday, October 11, 2018 - link

    Some of the asrock boards have 8 SATA3, 3 Ultra M.2 but it's a bit misleading as they share lanes. so you can't use 8 sata3 drivers and 3 m2 ones at the same time Reply
  • gavbon - Thursday, October 11, 2018 - link

    Yeah, it's a bit of a pain, but one of the drawbacks of a chipset designed for the desktop. Unfortunately, in that situation, it's one or the other. If I was going to use 8 x SATA drives and 3 x M.2, I would probably be using a HEDT chipset such as X299 or TR4 anyway Reply
  • ballsystemlord - Thursday, October 11, 2018 - link

    Spelling and grammar corrections. I did not read this whole article. You 2 goofed this one up pretty badly.

    "In the below table a question mark (?) denotes that we currently don't currently have this information available."
    Too many currentlys.
    "In the below table a question mark (?) denotes that we don't currently have this information available."

    "My take on it is that it could be easier to mount a CPU pot for extreme overclockers for some reason, as I'm sure this board is all about the performance marbles and nothing else."
    Sound bytes as a sentence (SBAAS). I've very little idea what you were trying to say. Maybe:
    "My take on it is that it could be easier to mount a CPU pot for extreme overclockers. For some reason they insist on pots. Or maybe not, as I'm sure this board is all about the performance and nothing else."

    "The new gaming themed naming structure consists of three different ranges which make a lot of sense when they deciphered; the MEG is the enthusiast gaming, MPG is performance gaming and the MAG is the arsenal gaming."
    Missing "are".
    "The new gaming themed naming structure consists of three different ranges which make a lot of sense when they're deciphered; the MEG is the enthusiast gaming, MPG is performance gaming and the MAG is the arsenal gaming."

    "The MAG essentially renames the original arsenal range of boards with a name which seems fitting etc rifle mag, a happy coincidence perhaps."
    Stray "etc".
    "The MAG essentially renames the original arsenal range of boards with a name which seems fitting i.e. rifle mag, a happy coincidence perhaps."
    Reply

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