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GIGABYTE Z390 Designare (Intel Z390) Motherboard Preview (Page 4)

By Steven Bassiri from Jan 10, 2019 @ 10:00 CST
TweakTown Rating: 92%Manufacturer: GIGABYTE

Z390 Designare Circuit Analysis Continued


The audio solution consists of a Realtek ALC1220 rated up to 120dB, and they added Gold series capacitors and WIMA film capacitors.


We get an i219v PHY for the first Gbit LAN controller and the Intel i211AT for the second. GIGABYTE did a solid and is using Intel's latest Wireless AC 9560 2x2 WIFI chip rated up to 1.733Gbps.


GIGABYTE is using the JHL7640 newer generation Thunderbolt 3 controller, which uses two PCI-E 3.0 lanes and offers two type-C ThunderBolt 3 ports, and features DP 1.4 output. The control these type-C ports and provide proper power delivery negotiation, two Texas Instruments TPS65983 type-C controllers are used, these are part of Intel's reference design.

So typically on Z-series motherboards with Thunderbolt we don't need an external video input since all the CPUs for the platform have an integrated graphics controller with DisplayPort (which is required for Thunderbolt).

However, the integrated graphics only offers DP 1.2, and there are newer KF and K SKUs coming out without integrated graphics. So GIGABYTE has added a Texas Instruments HD3SS215 DP differential switch, so users can use Thunderbolt 3 even without an iGPU and get a DP 1.4 input from an external GPU. The front panel type-C internal header uses a Pericom PI3EQX re-driver for native USB 3.1 and a Texas Instruments HD3220 type-C switch.


The rear USB 3.1 type-A ports each get a PI3EQX re-driver for chipset's native USB 3.1.


There is a Realtek RTS5411 USB 3.0 hub on the motherboard for the rear IO ports, and there is also a Realtek based power system for the two DAC-UP ports, so you can control the power to those two ports. The Realtek IT8688E is used as the main SuperIO on the motherboard.


An NXP level shifter is used to provide an HDMI output on the rear IO panel. The motherboard Has six PCI-E quick switches to move PCI-E bandwidth between the three PCI-E x16 slots, you will notice two of these quick switches are made by Pericom instead of ASMedia, and that's because Pericom's product is a 3:1 mux/demux, so it can offer different sources for the bandwidth.

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