when i replace and upgrade the ram up to 1 gb..first it enter the os.but when i restarting i'm stuck with "checking nvram" i done with reseting bios...
One thing you can try is to remove the SIMMs installed, and reverse their locations. This is usually completely automatic but sometimes it messes up. If you have a lintless cloth wipe use it to clean the contacts as well. What are the acceptable memory configurations for this motherboard? If you pick wrong sockets it just will not work.