Hello, I received an 850 G7 computer that looked like a prototype, it had no serial number or any information in the BIOS. I tried multiple BIOSes from the forum and with these BIOSes I attached, the computer boots, but it takes a very long time and runs very slowly, just at startup it takes almost 1 minute and 40 seconds. Can this be fixed? As I mentioned, there is no DMI data for the computer because the BIOSes were empty. Thank you very much....