I put 2 sticks mushkin 1600mhz 4gb ram into my acer aspire laptop, when both channels are populated the laptop will crash, without a BSOD it just restarts or turns off. I've tested each stick with memtest in each individual slow and it was fine, but memtest got an unexpected error with both in and then it crashed again. Is it more likely this is a problem with the ram or the laptop? I don't really have a way to test the ram outside this laptop.