Not a clue. I would suggest, due to the flakey nature of early 168 pin SDRAM sockets, that you switch to 72 pin EDO for this board. I can't speak for all motherboard designs using the 430VX, but typically a board using such an old chipset wouldn't know the difference when it comes to performance. Stability, on the other hand, will increase dramatically. By the way, there was such a thing as 168 pin edo, don't just assume the 16mb DIMM is sdram if you haven't any documentation or way of testing it. Tom Turak -----Original Message----- From: bev clark [mailto:[log in to unmask]] Sent: Monday, March 05, 2001 5:28 PM I have a Pentium 120 (I430 VX chipset) that came with 16mB DIMM. I want to upgrade the memory. I have a PC66 32 mB synchronous DIMM memory (Nanya) that my BIOS will not autodetect. If I leave the settings as they were for the 16mB memory the computer will not boot. If I leave the default settings in the BIOS, the computer will show signs of life ie: not beep but the monitor will not light up. Any clues? PCBUILD's List Owner's: Bob Wright<[log in to unmask]> Drew Dunn<[log in to unmask]>