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
- Gigabyte
- ASRock
- EVGA
- Asus
- NZXT
- Supermicro
- Z390
MSI MAG Z390 Tomahawk
The MSI MAG or 'Arsenal' range is somewhat unchained and features the more militaristic sounding boards such as this one, the MAG Z390 Tomahawk. The Tomahawk has an overall black and silver theme throughout with a very solid looking silver grey for the heatsinks and rear panel cover. The board does utilize basic RGB LED lighting across the chipset heatsink and the underneath of the 24-pin motherboard power connector and can be customized with MSI's Mystic Light RGB software.
The board has a total of three full-length PCIe 3.0 slots with the slots running at x16, x4 and x4; only the top slot gets MSI's Steel Slot reinforcement. In addition to this is a pair of PCIe 3.0 x1 slots. The Z390 Tomahawk has four RAM slots with support for DDR4-4400 with a total capacity of up to 64 GB. Featured for storage are six SATA ports and two M.2 slots which both have support for PCIe and SATA drives; the bottom slot includes an M.2 heatshield.
On the rear panel is three USB 3.1 Gen2 Type-A ports and a single USB 3.1 Gen2 Type-C, which also includes two USB 2.0 ports. Users looking to increase the number of USB ports can do so through the use of internal headers which opens up to an additional four USB 3.0 and four USB 2.0 ports. The MAG Z390 Tomahawk has dual NIC with a pairing if Intel Gigabit controllers (I219V and I211AT), with the five 3.5 mm audio jacks and single S/PDIF optical output taking its orders from a Realtek ALC892 HD audio codec. Users looking to utilize the iGPU on the 8th and new 9th generation Intel processors can do so thanks to the inclusion of a DisplayPort and HDMI video output.
The MAG Z390 Tomahawk represents a more modest offering from MSI and while the inclusion of dual NIC is a clear intent that MSI is going all out with their low to mid-range boards at present, users looking to make use of two-way SLI configurations will have to opt for one of the more expensive MPG range boards. The MAG Z390 Tomahawk is priced at $160 which kind of defeats the purpose of an entry range of boards especially when pricing is above the model such as the MPG Z390 Gaming Plus.
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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?]