That is one thing I have wondered about ICMgraphics, that why I said my ram is pc100. that was what I had in my old system before tame teccie got hold of it. It started life as a P2, ended up as an athlon, but some of my old bits got used, including the ram. I have often wondered if the ram is compatible with the rest of the newer system. When I looked at the features of the motherboard (as stated in the manual that came with it) it says:- memory 3 168 pin dimm sockets supports SDRAM 16mb-768mb(max) supports only 3.3v SDRAM DIMM. Now I am no teccie, so cannot really decipher this, but does it mean that my old pc100 ram is not ideal for the athlon motherboard he put into the system. When rebooting the system always hangs at the "checking ram" part of the screen.

The greatest part of wisdom is learning to develop  the ineffable genius of extracting the "neither here nor there" out of any situation...."