So recently I've upgraded my 13" Macbook Unibody with two 4gig DDR3 Lexar Ram sticks (for a total of 8gigs). And I guess they work fine; I've done Rember and Apple Hardware tests and apparently they're OK (Note: I've yet to try the extended Apple Hardware Test). Even the packaging says that they're Mac compatible. But I'm still getting Kernel Panics whenever I try to play a game or watch a YouTube video. Though it doesn't instantly happen whenever I initially start said tasks, it just arbitrarily happens whenever I'm doing them. So sometimes I can get through watching tons of YouTube/Flash related videos just fine and sometimes I get a Kernel Panic in the middle of watching a YouTube video. Gaming is sort of the same but recently I found out that if I play Bejeweled 3 (A game that really doesn't ask for much in terms of power) for a certain amount of time, I'll get a kernel panic. I do have all the proper firmwares installed and I'm also currently running Lion. I've also reseted my SMC and PRAM once, that didn't seem to work. I'm sort of at a loss right now. I'd love to be using 8gigs in my Macbook but I'm afraid that I'll have to end up putting back the stock 2 x 1Gig RAM sticks back in. My Macbook is still usable, it isn't completely ****ed up. It's just unfortunate that I have to cautiously watch YouTube videos or play games. I don't have a Panic log available right now though it keeps mentioning "AppleIntelCPUPowerManagement (167.0)". I don't know, what do you y'all think? Is it the RAM? Or is it something else?