Thanks again you blokes for the info thus far. I am checking on the case. What distingushes an ATX case?? The one I have has a power supply bolted to the top rear of the case, the mother board conections come out through the rear, as do the various cards. CD drives are at the front, and the hard drive is below. Currently there are three fans fitted, one to the power supply one to the case and one to the old P4 chip. I'll try and get a pic, might make it easier for comments. All ram is and will be DDR2
Codger = A somewhat eccentric man, especially an old one.