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GIGABYTE X99-Phoenix SLI (Intel X99) Motherboard Review

By: Steven Bassiri | Socket LGA 2011 in Motherboards | Posted: Jun 28, 2016 4:48 pm
TweakTown Rating: 92%Manufacturer: GIGABYTE

X99-Phoenix SLI Circuit Analysis Continued




The X99-Phoenix SLI uses an ALC1150 Realtek codec and a single Texas Instruments OP1652 amplifier for the rear IO output jack. There are 11x Nichicon Gold series electrolytic audio capacitors and a physical divide of the audio section of the PCB from the rest of the motherboard. The XMP logo in the PCH has RGBs located underneath it, and the audio section has a few RGBs that illuminate the slits in the white shield that covers the audio section. Together, the LEDs produce a neat lighting effect.





GIGABYTE is using Intel's Alpine Ridge USB 3.1/Thunderbolt 3 controller for USB 3.1 functionality. Instead of using four PCI-E lanes from the CPU, and reducing the number of lanes for GPUs, GIGABYTE is directing four PCI-E 2.0 lanes from the PCH to the controller. The controller gets 20Gb/s of bandwidth to supply two 10Gb/s USB 3.1 ports. A Texas Instruments HDS3212 is used as a type-C switch for reversible connectors. The motherboard carries dual Intel Gbit NICs, the first consists of the integrated Gbit MAC in the PCH and an Intel i218v PHY. The second NIC is an Intel WGI211AT.




GIGABYTE is also using Intel's latest 8260NGW Wireless AC/Bluetooth 4.2 M.2 card for wireless connectivity. The motherboard also supports GIGABYTE's QFlash Plus, which allows users to flash the BIOS without having to install a CPU. The IT8951E is an embedded controller that runs QFlash Plus. The board is equipped with dual 128Mbit (16MB) BIOS ROMs.




The motherboard also uses two NEC D720210 USB 3.0 hubs to expand two USB 3.0 ports to eight for internal headers and IO panel ports.




An IDT6V49322NLG clock generator provides better BCLK overclocking capabilities. The main SuperIO is the IT8620E, which provides fan control, temperature/voltage monitoring, and PS/2 on the backpanel IO. An IT8792E embedded controller (this is the third embedded controller I found on this board) is programmed to expand fan control, and maybe even to control the RGB LEDs.




I found a large amount of NXP PCI-E 3.0 quick switches to switch around PCI-E bandwidth to the different slots.

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