We have already examined this codec before, and according to the data we've accumulated, it's a bit worse than Realtek's modern codec, especially the high-end ALC892. We assessed the integrated audio solution in the 16-bit/44kHz mode using RightMark Audio Analyzer 6.2.3 and an ESI sound card. The remaining 4 fans can also be controlled, but by a simpler algorithm. A more complex algorithm is used for 4-pin fans. If you have a 3-pin fan, the typical idle rpm is about a half of maximum in the Silent mode. You can either select a mode (Silent, Standard, Turbo) or set a temperature range for fan control. BIOS can automatically control CPU and system fans.
System monitoring based on ITE IT8712F.USB 3.0 based on NEC D720200F1 (PCIe x1) for 2 x USB 3.0 ports.One is on a bracket, the other is on the backpanel. FireWire based on VIA VT6315N (PCIe x1) for 2 x IEEE 1394a 100/200/400 Mbps ports.Supports AI Net 2 cable integrity checker. Gigabit Ethernet based on Marvell 8059 (PCIe x1).There's an optical S/PDIF Out on the backpanel as well as a custom Creative X-Fi driver and a corresponding software set (Crystalizer, CMSS-3D). Integrated audio based on the 8-channel VIA VT2020 HDA codec.Strangely enough, while there are three controllers supporting IDE (Southbridge, JMicron JMB363 and VIA VT6315N), the motherboard has no PATA interfaces. One of those is connected to the backpanel as eSATA, and there's a bracket, if you need to do the same with the other. Another 2 x SATA 3Gbps ports are supplied by the JMicron JMB363 (PCIe x1) controller. It has 6 x SATA 6Gbps connectors (RAID 0, 1, 0+1, 5). It supports all Socket AM3 processors and up to 16GB of DDR3-1066/1333/1600 memory. ASUS Crosshair IV Formula is based on the AMD 890FX chipset (AMD 890FX Northbridge + SB850 Southbridge).
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