Hi, I´ve already installed a brand new Power Color Radeon rx 550 4gbD5 in my PC and It doesn´t work. I´ve a "no signal" message on my display and I guess my OS (W10 64bit) cannot boot, because if I press the power button it turns off inmediately. Obviusly, I´m not able to see what´s happening, I don´t know if the bios works and w10 is unable to start or whatever...While the graphic card is is attached to the mother board the integrated hdmi doesn´t work too. If I remove the new graphyc card from the mother board it works normally. My pc model is Modell: PC MT 14 Typ: MED MT742G Art.-NR.: 10015594 (probably this is the MSN) MED S/N: 17987010020142 Mother Board: MS-7728 VER: 2.0 Bios version: 2.02.1205 Thanks for your help.
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