ASUS ROG STRIX ZE70-F Gaming
Usage: Heavy gaming, VR, general use.
Rating: Good. Low number of USB ports makes a PCI-e USB card a must for peripherals. UEFI refuses use of onboard graphics when a GPU is plugged in even though you can select it (resets to auto after selecting onboard.) Use of onboard audio is not possible by default due to it being shared in an IOMMU group with a lot of items that don't have the necessary ID assignments. VT-d enable is hidden deep in the UEFI and requires some exploring to locate it.
Instructions: Video output: Use the cheapest GPU you can find in the top slot.
Audio output: A sound card is the best option. If you don't have one get the cheapest thing you can find. Alternatively you can use the HDMI/DisplayPort audio output of your graphics card if you have audio jacks or speakers available in your monitor.
VT-d: <to be edited with direct location of VT-d option and how to get there>
Note: Do NOT pass through "ASUSTek Computer", this causes an issue that freezes up your computer for a second at frequent intervals (similar to BSOD freeze but recovers.)
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Innatek KT5001
Usage: Gaming, VR, general use.
Rating: Excellent. Oculus seems to think that a driver update is needed but have had no issues thus far. Works exactly as you'd hope for plug-n-play when passed through.
Instructions: see this thread.
Note: Requires SATA power supply, comes with molex to SATA adapter.
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Gigabyte GeForce 210
Usage: Dedicated unRAID video output.
Rating: Excellent. Lowest-price graphics card I could find with an HDMI output.
Instructions: Install into top PCI-e x16 slot, assign VMs to your beefier graphics card.
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Creative Labs Sound Blaster Audigy FX
Usage: Integrated audio alternative.
Rating: Excellent. Lowest-price sound card I could find.
Instructions: Select from sound card dropdown in unRAID GUI, Windows 10 will automatically install necessary driver.
Note: When using headphones with inline volume control, if you hear a buzzing sound simply turn down the volume on the inline control and turn up the volume in Windows. The buzzing will cease.