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I turn my pc on fans are on, no output, ik the monitor works cause well I use it everyday, I’ve tried 2 GPU nothing, I see people write things like change start-up options but I cant do that as I cant see the screen, help???

Hi, What is the make and model number the PC or the motherboard if a custom build? can you get into BIOS with a display? Changing the motherboard as well doesn’t leave too many options except perhaps the PSU. Try the paperclip test on the PSU and make sure that all the voltages are there and correct