So far I've figured out that means something about the ram bit I haven't been able to figure out what the problem is
Edit: video link
Here is a reference to BIOS beep codes. For American Megatrends, look under AMI. 3 beeps means the low 64K failed - a very basic test - which probably means the RAM isn't working at all.
You should first check whether the RAM is compatible with your machine. At that time, there was a lot of variation - 5V vs 3.3V, 30-pin vs 72-pin, EDO vs FPM, not to mention response latency grades from 60ns to 150ns. Usually 70ns FPM will work in a 486.
Watching the first few seconds of video I see you have quite an early board with 30-pin SIMMs, which each provide 8 bits width to the data bus. Since the 486 is a 32-bit bus CPU (unlike the 386 it was never made in a 16-bit bus variant), you always need 4 identical SIMMs together. If you had a board that took 72-pin SIMMs, which have 32-bit width each, you'd be able to try just one like you are.
The effect of fitting just one SIMM in this machine would be to provide storage only at one out of every four bytes in sequence. Software just isn't written to cope with that on the PC.