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BIOSTAR Racing Z170GT7 (Intel Z170) Motherboard Review (Page 4)

By Steven Bassiri from Mar 9, 2016 @ 11:12 CST
TweakTown Rating: 92%Manufacturer: BIOSTAR

Z170GT7 Circuit Analysis Continued


The audio on the Z170GT7 is centered around an ALC898, which is a high-quality codec. While the ALC1150 is popular, the ALC898 offers higher SNR on all outputs rather than just the headphone output like on the ALC1150 (ALC1150 headphone output is higher than the ALC989). Two sense amplifiers are located to detect and provide the proper audio for your device. BIOSTAR does include PCB isolation for the analog audio as well as non-polarized electrolytic audio capacitors.


The Z170GT7 has an Intel i219v PHY used to provide Intel 1Gbit LAN. To add extra protection to the LAN port, a dedicated LAN specific surge protector is included.


For USB 3.1, BIOSTAR went with the ASMedia 1142, it provides the single USB Type-C connector on the backpanel IO. I did not find a USB PD chip, so don't expect higher output than 2A. I did find a dedicated clock generator for BLCK overclocking, the IDT 6V41542NLG.


Since Intel has removed VGA/D-SUB from the native display outputs of the CPU's iGPU, BIOSTAR was forced to add in a Realtek RTD2168 to convert digital video into VGA for the back panel VGA port. Two NXP level shifters turn digital video from the iGPU into an output that is compatible with HDMI and DVI. The main SuperIO in charge of fan control and system parameter monitoring is the IT8625E. Two 64Mbit (8MB) BIOS ROMs provide UEFI redundancy in case of corruption from overclocking.


Not all the LEDs are RGBs, some of the are just normal LEDs such as the ones pictured above which reside below the touch panel on the upper right corner of the motherboard. For PCI-E quick switching, BIOSTAR is using the ASMedia ASM1480.

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