Problems with ibm 386 Ram

I have an ibm 386 PS2 model 70 computer and I am trying to get it to work. I think the problem is that the ram bank is wrecked because it will load the ram up 6016KB which is the memory in the computer, but then it beeps 3 times displays numbers 601301 401 and 183 and then goes to a screen. That screen has function keys across the bottom with options such as run, key and save as well as others. I’ve tried playing with them but I can get anywhere. What I would like to know is where can I get a ram bank for this computer or what I can do to get it working.