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Before throwing that Hail Mary pass I wondered if anyone had other ideas of things to try. Hauppauges WinTV HVR 2250 is a half-height dual tuner PCIe card that supports both clear QAM from an unencrypted cable box or an over-the-air TV antenna. It didn't fix the problem but maybe I have to re-install with it on for it to work. Is there anything I can try to change with respect to preventing resource re-allocation related to PCI passthrough? For what it's worth, I've tried reserving the memory for the VM. I'm wondering if there might be some resource sharing that happens to make this passed through PCI device "disappear" for an app using it in some situations. FWIW, the device is there and functioning in Device Manager, and I'm able to re-install the drivers no problem but that doesn't fix the problem. I tried setting up TV again in MC but it can no longer detect a tuner at all. On the other hand, our Expert, more advanced version of the PSU Calculator greatly extends the ability to select various PC parts and components, adds CPU and Graphics card overclocking, and allows consumers to calculate PC energy consumption, compare PSU efficiencies, and ultimately project energy cost.I realize this isn't a supported application but I was able to passthrough a brand new Hauppauge 2250 TV tuner card and Windows 7 Media Center (32 bit) recognized it long enough to detect/confirm the TV signal but when it went to record a show later MC said it couldn't because there was no tuner available. Video Card Overclockīasic version of the OuterVision Power Supply Calculator allows users to quickly estimate power consumption with minimal selection of PC parts. Building cryptocurrency mining rig? Check our Mining Rig Builder tool. Are you building a modern gaming PC, low power HTPC media server, or maybe you need to figure out power requirements for a rack in a data center? We've got you covered - OuterVision PSU Calculator will help you to select a suitable power supply unit and even Uninterruptible Power Supply (UPS) for your system. OuterVision Power Supply Calculator is the most accurate PC power consumption calculator available and is trusted by computer enthusiasts, PC hardware and power supply manufacturers across the Globe. OuterVision ® Power Supply Calculator Real Power Consumption