Terribly common problem I know. Sys specs = Presario SR2050NX with an ECS RC410-M mobo. 2GB RAM max(2x1). I added a 1gb stick of Corsair (VS1GB533D2). Its the correct ram. I have switched the slots, tried the sticks individually, set the BOOT.ini for no MAXMEM parameters, even reset bios and my graphics card has its own 512mb of memory. Added ram is not being read in os or bios. Everest does read it in the "overclock" tab, but nothing else... I am stuck.