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
ASRock Z390 Taichi Ultimate
Much of what the ASRock Z390 Taichi Ultimate offers has been outlined above with the 'regular' Z390 Taichi model. The Z390 Taichi Ultimate is also based on the ATX form factor with what from a visual perspective looks like the same 12-phase power delivery and same PCIe layout which consists of three full-length PCIe 3.0 lanes (x16, x8, x4) and has an additional PCIe 3.0 x1 slots. The Z390 Taichi and Z390 Taichi Ultimate share the same memory support with four slots supporting up to 64 GB of DDR4, with support extending up to DDR4-4200. In regards to storage connections, there are three M.2 PCIe 3.0 x4/SATA slots and a total of eight SATA ports.
The main differences between the two Taichi branded models come in terms of controllers as the Z390 Taichi Ultimate adds an additional LAN port to the already inclusive dual Intel-based LAN, an Aquantia 10 G NIC which is one of the only Z390 motherboards to include one. The rest of the rear panel is much of the same with three USB 3.1 Gen2 Type-A, one USB 3.1 Gen2 Type-C and four USB 3.0 Type-A ports. A Realtek ALC1220 codec handles the onboard audio and ASRock has included a pair of video outputs which consist of a DisplayPort and HDMI 1.4 port. The Z390 Taichi Ultimate keeps eight 4-pin fan headers which makes it one of the most cooling focused ATX boards alongside its younger brother, the Z390 Taichi. To add more, ASRock has included a pair of separate power/reset buttons and has upgraded the Wi-Fi to support 2T2R Wave 2 802.11ac.
The ASRock Z390 Taichi Ultimate at launch costs $300 and is the most expensive Z390 models. Everything about this board has flagship status including a proper triple NIC (unlike the MSI MEG Z390 GODLIKE) with the inclusion of an Aquantia controlled 10 G LAN port, 2T2R 802.11ac Wi-Fi, triple M.2 and plenty of USB 3.1 Gen2 to keep professional users, enthusiasts and gamers satisfied. The board is more targeted towards the enthusiast rather than the gamer, but ASRock makes this clear with the inclusion of the similar spec and closely priced Z390 Phantom Gaming 9 motherboard.
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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?]