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ASRock Z170 Extreme4 / Extreme4+ (Intel Z170) Motherboard Review

By: Steven Bassiri | Socket LGA 1150/1151 in Motherboards | Posted: Aug 17, 2015 4:46 pm
TweakTown Rating: 90%Manufacturer: ASRock

Circuit Analysis Continued




ASRock has upgraded the basic Realtek ALC1150 codec with two Texas Instruments NE5532 which supports up to 600 ohm impedance, and has added nine Nichicon Gold Series electrolytic audio capacitors. ASRock also has divided the audio signals from the rest of the motherboard to reduce noise interference with a physical PCB divide, but there are no back-side LEDs like I have seen on some other boards.





ASRock is using Intel's WGI219V Intel 1GBit NIC which was recently released. An IDT 6V41542NGL is used for the CPU's OC BLCK which is separate from the PCI-E/DMI bus frequency.




For USB 3.1 support on the front panel USB 3.1 bay, ASRock is using an ASMedia ASM1142 for the actual PCI-E to USB 3.1 conversion and an EtronTech EJ179v which supports external power source logic control and up to 15W (5v@3A) of output power to USB 3.1 type-C devices.




The same ICs used for the front panel USB 3.1 bay are used for the back panel IO USB 3.1 ports. The ASM1142 is the USB 3.1 controller and the EJ179V is the type-C switch.




The nuvoTon NCT6791D provides SuperIO functionality such as temperature, voltage, and fan monitoring and control as well as the PS/2 port on the backpanel. To support each fan header and provide all of them with PWM support, ASRock is using a single nuvoTon NCT3943S for each header.




To get DVI/HDMI out of the Skylake iGP, ASRock uses an ASMedia ASM1442K digital video to HDMI/DVI level shifter. Texas Instruments HD3SS3415A (PCI-E 3.0 quick switch) switches bandwidth between the M.2 slot and the two SATA ports (single SATA Express) discussed earlier. Four TI HD3SS3415A switch 8x of bandwidth between the first and second PCI-E 16x slots for SLI/CrossFireX.

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