New stick of ram, computer has black screen at startup

I replaced a 1GB stick with a 2GB stick of ram in a Zoostorm W76th Laptop.
I made sure the specs matched and the system could handle the memory, but the only difference is that the new stick is a 2Rx8 stick and the other wasn't. Could this be my problem? The machine would power on, but I would have nothing display on the monitor. As soon as I put the old stick back, it was fine.

:confused:
 
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