I'm trying to upgrade the RAM to 2GB and every time I put the second 1GB stick in the laptop won't boot, I get 1 long and 4 short beeps then nothing. I just need to verify the meaning of the beep code, if I only put 1 of the 1GB sticks it it boots without any trouble. I've tested the sticks indididually and they each boot up seperatly without issue, only when I pair them do I get the beep error.