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ASRock Fatal1ty X99X Killer/3.1 (Intel X99) Motherboard Review (Page 4)

By: Steven Bassiri from Jun 3, 2015 @ 9:10 CDT
TweakTown Rating: 93%Manufacturer: ASRock

Circuit Analysis Continued


The audio is powered by an ALC1150 which compliments the Intel Azalia processor in the PCH and two Texas Instruments NE5532 are used to amplify the backpanel and front panel audio outputs. Eight Nichicon gold 100uF electrolytic audio capacitors are used for the analog domain and the audio circuitry is isolated to reduce noise.


The Fatal1ty X99X Killer has two wired NICs, one utilizes Intel's i218v and the other is a Qualcomm Killer e2200.


An ASMedia ASM1142 provides a single USB 3.1 type-C (reversible) port from two PCI-E lanes for the, and an ASMedia ASM1074 is a USB 3.0 hub controller which takes one USB 3.0 port and expands it into the four USB 3.0 ports on the back panel. The internal USB 3.0 headers are directly connected to the Intel PCH.


The Ultra M.2 slot will take its bandwidth from the last 16x slot through two NXP L04083B quick switches which are wired to the CPU's PCI-E 3.0 controller. It can provide up to 32Gb/s bandwidth, however, for SATA based M.2 drives the Ultra M.2 port needs an SATA link to the PCH which is provided through SSATA3_2 and an NXP L04083B. An ASMedia 1456 switches bandwidth from the SSATA3_3 port to the eSATA port on the back panel. This switching is all sound and performance won't take a hit as ports are just being traded and not shared.


To expand the USB 3.1 capabilities of the Fatal1ty X99X Killer/3.1 even more, ASRock provides a 2x A-Type USB 3.1 card. The A -Type USB 3.1 connector is backward compatible with USB 3.0, 2.0, and 1.0. This card won't fit in a PCI-E 1x slot and needs a full sized or half sized slot. It uses an ASMedia ASM1142 and a Molex connector to provide the power that is required by USB 3.1. In total the board has three USB 3.1 connectors.


A nuvoTon NCT6791D provides SuperIO functionality and the PS/2 port on the backpanel. A Texas Instruments GD75232 provides drivers and receivers for the COM port.

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