I recently moved to another country and brought my pc components with me. I disassembled the insides of the case and brought them in my backpack/suitcase. I sent the case by shipping. Now I am reassembling it but I can't get it to post. First the VGA LED and Boot Device LED was constantly on with GPU plugged in, no boot. Using motherboards display resulted in the same outcome. I unplugged an extra HDD that I added from my dads PC, this time I got a blinking underscore screen with no access or signs of bios. I tried some other stuff and those lights are off now, instead the CPU LED is on. No post at all with boot loop this time. My CPU cooler fans attachments to the heatsink broke during transport so I had to ziptie the whole thing together. All fans including that one work, I pointed that out to say that unmounting the heatsink would be very inconvenient, I don't even know what good that could do tho. Getting to the blinking underscore screen tells me that my CPU is functional but I could be wrong. Would appreciate the help and suggestions!