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GIGABYTE X299 AORUS Gaming 7 PRO Motherboard Review (Page 4)

By Steven Bassiri | Nov 30, 2017 11:15 am CST
Rating: 94%Manufacturer: GIGABYTE

X299-Aorus Gaming 7 PRO Circuit Analysis Continued

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The Realtek ALC1220 implementation is not as extreme as on the Gaming 9; it's pretty much the same as that on its predecessor. The ESS Sabre ES9018 121dB DAC is used to enhance output. A Texas Instruments LME49720 dual operational amplifier is used to improve overall power. We don't see the fancy amps and preamps we did on the Gaming 9, and we also lose the NEC relay for de-pop. WIMA film capacitors and Nichicon Gold series electrolytic capacitors are used in the filter stage.

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We get both an i219v and an e2500 from Killer. Killer's wireless AC 1535 has been replaced by the Qualcomm QCNFA364A which is a 2x2 wireless AC MIMO controller with BT 4.1.

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Two ASMedia ASM3142 controllers are used on the motherboard; one for the rear and one for the front. They both get 16Gbps of bandwidth from two PCI-E 3.0 lanes. A small Texas Instruments HDS switch chip provides switching capability for the type-C port on the rear.

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The Realtek RTS5423 takes in a single USB 3.1 port and outputs to four. The Realtek RTS5411 takes a single USB 3.0 port and routes it into three, while a single USB 3.0 port is normally routed for four USB 3.0 ports on the IO panel.

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Three IT8295FN are located on the motherboard and provide the digital RGB LED functionality and header.

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I found eight NXP DBTL08GP053, which can take multiple inputs and route to multiple outputs. They even support two crossbar ports, but generally, they act as replacements for the traditional quick switches we see on motherboards. They are expensive and high-bandwidth and are used because of the X299 platform's crazy PCI-E layout. An IT8951E is used to provide USB BIOS Flashback and recovery.

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The main SuperIO is the IT8686E; it supports fan control, hardware monitoring, and the PS/2 on the rear IO panel. An ICS6V41742B clock generator can also be found onboard; it's the B version while the original board used the A version, although I am not sure if it makes any difference.

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An ITE IT8795E is used to expand fan control operations, and the motherboard offers dual 128Mbit/16MB BIOS ROMs, one of which is hidden under a PCI-E slot. While the motherboard doesn't have DAC-UP 2 on the rear IO panel, it does offer this technology on both the internal USB 3.0 headers, and it uses a Richtek RT8288A step-down converter to make it happen. There are two of these RT8288A chips, one next to each internal header.

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