My U5SX 486-33F / 40 has Pin C3 e Pin D3 connected.Pin C3 = ClockPin D3 = Pin D17 = Back Off input.And my U5SX 486-33F not has this connection.More photo 486 UMC : http://www.cpu-museo.it/486umc.html
My U5SX 486-33F / 40 has Pin C3 e Pin D3 connected.
Pin C3 = Clock
Pin D3 = Pin D17 = Back Off input.
And my U5SX 486-33F not has this connection.
More photo 486 UMC : http://www.cpu-museo.it/486umc.html