Intel Z390 Motherboard Overview: 50+ Motherboards Analyzed
by Ian Cutress & Gavin Bonshor on October 8, 2018 10:53 AM EST- Posted in
- Motherboards
- Intel
- MSI
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- Z390
MSI MPG Z390I Gaming Edge AC
The MSI MPG Z390I Gaming Edge AC isn't just the smallest form factored board of the MPG range, but it also represents the only mini-ITX sized motherboard in their Z390 product range. Like the other Gaming Edge AC boards on this page, this board features integrated Wi-Fi with an Intel 9462 802.11ac adapter which also includes support for the latest Bluetooth 5 standard.
As with other mini-ITX motherboards, the MSI MPG Z390I Gaming Edge AC has a single full-length PCIe 3.0 x16 slot which is surrounded in MSI's Steel Slot armor protection. The board has two M.2 slots with one slot only supporting PCIe and the other having support for both PCIe and SATA drives; one slot is located on the front which has a small inclusive heatsink, whereas the other slot is located on the rear of the PCB. The board also has of a total of four straight angled SATA ports with the ports split into pairs on either side of the two memory slots. The two memory slots have support for DDR4-4600 and with a maximum capacity of up to 32 GB.
With certain sacrifices usually being a necessity on mini-ITX motherboards, MSI has cut down the networking and audio support down to a pair of slightly lower quality (compared to the Z390/Z390M Gaming Edge AC boards) with a Realtek RTL8111H Gigabit controller and Realtek ALC892 HD audio codec pairing respectively. The mini-ITX offering has a total of two USB 3.1 Gen2 Type-A ports with MSI disregarding Type-C connectivity; MSI has also included two USB 3.0 Type-A and two USB 2.0 ports. The front panel headers also allow for a further two USB 3.0 and two USB 2.0 ports to be utilized if required. Like the other Z390 Gaming Edge AC boards, this board also makes use of a DisplayPort and HDMI video outputs.
The MSI MPG Z390I Gaming Edge AC mini-ITX motherboard is expected to retail for $165 at launch and is an all-around decent offering which has been subjected to penalization due to the form factor. This is prevalent on the HD audio and networking aspect and unlike the mATX sized Gaming Edge AC doesn't feature 2T2R Wave2 Wi-Fi support to make up for the lesser quality pairing of Realtek controllers (audio and networking) included.
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Valantar - Wednesday, October 10, 2018 - link
That would be pretty shocking, yeah, but the sheer size of that lump of metal still has me a bit worried. Guess that's what you get when you try to squeeze power delivery for a CPU that (likely) pulls >300W when overclocked into an ITX board (and refuse to use riser boards like before, for some reason).FXi - Monday, October 8, 2018 - link
The power feed also changed with z390 I believe at least in the Asus models it did. The power feed of the 370 was "enough" to drive the newer 9700/9900 but there is a difference there that may impact enthusiasts. I don't think it enough to warrant an upgrade but something to consider.Also people should remember that while it is still a bit of a ways off, wifi is going to change to Wifi6 or 802.11ax starting now and probably seeing much of the changeover during 2019/2020 depending on adoption choices. And there is also pci-e 4.0 to consider next year probably that should be thought about before people do "marginal" upgrades from 370 era chipsets.
FXi - Monday, October 8, 2018 - link
Silly thing posted in edit window. Sorry power delivery and other points covered by you. Would have edited if I could have found that optionDanNeely - Monday, October 8, 2018 - link
Other things to look forward to in the next few generations are: Less-hacky USB3.1 implementations (eg this articles speculation that a 10g port will need to eat 2 HSIO lanes instead of 1, and still needing an extra chip to support USB-C). Spectre/Meltdown fixes in hardware. A reduced DMI bottleneck between the CPU and chipset (either just from upgrading the link to PCIe4/5, moving some of the peripheral IO onto the CPU, or both.Valantar - Wednesday, October 10, 2018 - link
Considering that the maximum theoretical bandwidth of PCIe 3.0 x1 is 984.6MB/s, you _need_ two PCIe lanes (and thus two HSIO lanes) for a USB 3.1G2 (1.25GB/s) controller unless you want to significantly bottleneck it. That's not "hacky", that's reality, even if this leaves a lot of bandwidth "on the table" if this only powers a single port (which it rarely does, though, and given that a full load on two ports at one time is unlikely, running two 1.25GB/s ports off two .99GB/s lanes is a good solution).Moving DMI to PCIe 4.0 will be good, though, particularly for multiple NVMe SSDs and >GbE networking.
DanNeely - Wednesday, October 10, 2018 - link
Splitting the traffic over 2 HSIO lanes is a hack because it'd require something to split/combine the traffic between the chipset and usbport. That in turn has me wondering if the speculation about the implementation being done that way is correct, or if the Z390 has 6 HSIO lanes that can run 10Gbps instead of the 8 that the rest top out at for PCIe3repoman27 - Thursday, October 18, 2018 - link
The implementation is absolutely not done that way. HSIO lanes are simply differential signaling pairs connected to a PCIe switch or various controllers via a mux. The PCH has a 6-port USB 3.1 Gen 2 xHCI, which can only feed 6 HSIO muxes. The back end of that xHCI is connected to an on-die PCIe switch which in turn is connected to the DMI interface. That DMI 3.0 x4 interface is already massively oversubscribed, but it is at least equivalent to a PCIe 3.0 x4 link, which is the most bandwidth that can be allotted to a single PCH connected device.Srikzquest - Monday, October 8, 2018 - link
HDMI 2.0 is available in Asus and Gigabyte's ITX boards as well.gavbon - Tuesday, October 9, 2018 - link
Thank you Srikzquest; updated the tables, obviously missed this yesterday :) - Thanks againHickorySwitch - Monday, October 8, 2018 - link
Correction:https://www.asus.com/us/Commercial-Servers-Worksta...
It says under "Specifications" that the board sports HDMI 2.0[b?]