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No.656896 ViewReplyOriginalReport
My newly bought B450 MSI Tomahawk doesn't work. After installing necessary components on it and turing on the PSU, no LEDs light up and the PC of course doesn't power on. I checked the PSU on a different mobo and it works fine. However, when pressing the BIOS Flashback button on the Tomahawk, there is a blinking LED light for a couple of seconds. I checked and reseated CPU and RAM multiple times and they're definitely installed properly (I don't have another board to test them on, though). Any ideas?