Put memory stick in slot #3 as only memory - it came on and recognized the one stick.
I seem to see conflict in how the slots are numbered. On the mainboard they are numbered 1 thru 4 front to back. they are two color - black and white. Another label shows another memory loading which corresponds to the black and white connectors. Like the colors represent the two memory channels.
To test them should put two sticks in white channel and see what results I get. then do the same with black channel.
When do you know if it is a hardware issue vs a bios setting issue?