Have a P166 on a mobo w/Intel i430vx chipset and recently upgraded RAM to cope with Win98se. Prior to the mem upgrade I was using two 8MB, and two 4MB EDO SIMMs and mobo saw all mem correctly. The mobo supports SDRAM as well, so I purchased two 32MB PC-66 modules, but the mobo only sees 16MB total instead of the 64 it should see. Has anyone had this type of issue with a mobo utilizing the same chipset? All help appreciated.