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Can't use new Radeon video card with Windows 10
I'm confused. I bought a Dell Precision 3420 Small Form Factor Desktop Workstation with Windows 10 Pro pre-installed. Before booting up for the first time, I installed a 3rd party graphics card (Radeon 7750 with 4x mini DP). Then, I attempted to boot into a disk cloning software so I could replace the stock 1TB spindle drive with an SSD. At first, I had to use the integrated video, as the 7750 wasn't being recognized. In the Dell BIOS there is a video selector and it was set to Auto, but it defaulted to the integrated graphics (Intel HD 630), however I was able to choose the Radeon to be the default and when it rebooted, it picked up the signal from the Radeon and everything seemed to be fine.
After the disk cloning, I attempted to boot Windows 10 and no video. In fact, the fan on the Radeon isn't even spinning, as if there is no power to the card. I connected my monitor to the integrated graphics and it came right up. I went back into BIOS and the Radeon choice is gone - only Auto and Intel.
I started all over, with a different SSD, and everything went just like it did the first time. As soon as I tried to boot windows, the Radeon stopped working completely. Within Windows, there is no indication whatsoever that WIndows sees the Radeon. It is not present in Device Manager or other hardware identifiers.
Anyway, I assume I am missing something, but I haven't been able to find it on my own, so I beg you all for help. I am emotionally prepared for the reality that I cannot use my neato Radeon card in this system, but I haven't given up hope yet.
After the disk cloning, I attempted to boot Windows 10 and no video. In fact, the fan on the Radeon isn't even spinning, as if there is no power to the card. I connected my monitor to the integrated graphics and it came right up. I went back into BIOS and the Radeon choice is gone - only Auto and Intel.
I started all over, with a different SSD, and everything went just like it did the first time. As soon as I tried to boot windows, the Radeon stopped working completely. Within Windows, there is no indication whatsoever that WIndows sees the Radeon. It is not present in Device Manager or other hardware identifiers.
Anyway, I assume I am missing something, but I haven't been able to find it on my own, so I beg you all for help. I am emotionally prepared for the reality that I cannot use my neato Radeon card in this system, but I haven't given up hope yet.
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ASKER
I'll take a look, but I recall the card being advertised as not taxing on power supplies. I just find it odd that the card worked just fine until I tried to boot windows 10. Coincidence?
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Windows 10
Windows 10 is a personal computer operating system featuring the "universal application architecture" (UAP); apps can be designed to run across multiple devices with nearly identical code, including PCs, tablets, smartphones, embedded systems, Xbox One, Surface Hub and HoloLens. Windows 10 also includes a virtual desktop system, a window and desktop management feature called Task View, the Microsoft Edge web browser, support for fingerprint and face recognition login, voice-based search (Cortana), new security features for enterprise environments, and DirectX 12 and WDDM 2.0 to improve the operating system's graphics capabilities for games.
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2) Does the Dell power supply have enough power to run the system, plus the 7750? The Radeon alone pulls 55 watts.
Side note: The largest Radeon card I have seen working in a full-size Dell system is a 7650, which pulls 33 watts and has no external power connector.