AMI bios-3 beeps is first 64k Ram.
I just fixed a PC with this issue. I tried 4 sticks of known working RAM and it made no difference. I realised that it could not be RAM. I reset CMOS using the jumper and it made no difference. Eventually, I removed all RAM and started the laptop and naturally got continuous beeping with no RAM fitted. I then inserted one stick of RAM while it was continuously beeping and the MB gave a post beep. It then shut down and rebooted. On reboot it gave notice that it had a corrupt bios and would I like to use the stored backup -Hell yeah! This PC was a gigabyte GA-Z77-HD3 and had a bios backup in its chipset. The PC then booted normally.