Have an old AMD CPU, motherboard and RAM. So I got an old PC from around 2000 with a 250W PSU, will this hold? Do not know what CPU it is, but at least the socket 939, is probably around 1.5-2.5GHz, guess it is an Athlon 64 X2. The biggest problem is that I do not have the CPU cooler, I have cooling fins, I lack the cooling ribs parties. Do you have any tips on how to mount a cooling ribs then?