The last 2 weeks have been hell for me. I attempted to upgrade my PC from a 6th gen i7 to a 3700x. After building the PC, using a hard drive directly from my old PC, with all the original files on it, I tried to boot. While the fans and RGB lighting all turn on, there is no signal to the monitor. On top of that, the PC keeps trying to reboot on its own. This is my first time building a PC so this is mostly new to me. I am using the Steel Legend x570 motherboard. I have contacted Asrock support, who led me on the week-long adventure of attempting to get a bootkit for an x570 motherboard. After installing the bootkit, the PC continued to not display signal to the motherboard, and I am now quite certain it may be a problem with the hard drive. What I need to know is if the hard drive can be taken from another PC with a different motherboard and be used to even get to BIOS on the new motherboard (as of now I cannot even access BIOS). If it cannot be used with the new motherboard, should I buy a new hard drive, and if I buy a new hard drive, do I need to format that drive in any way before putting it in my PC. Thanks for any help, this process has been exceptionally annoying and solving it would make my month.