Relevant Computer Specs: OS 10.6.8 Max RAM possible 2gb Macbook 1,1 (early or mid 2006, I forget which) Two 1gb RAM chips currently inserted, two 256mb chips replaced Background: I wanted to upgrade my OS to 10.6 recently, and discovered I needed 1gb of total RAM, so I went to crucial.com, scanned my computer, and ordered two 1gb RAM cards, figuring an extra 1gb couldn't hurt. When I tried installing them, I found only 1 of the cards was being recognized. I didn't know whether it was the bank or the card, so I switched them around, and the same bank (Bank 1, the slot nearer to the center of the laptop) was registering as empty even though I knew the card was working. I did some research on the problems other people were having installing RAM and found that it can be a pretty tight fit, so I made sure to really cram the thing in there. I also made sure my computer was capable of handling 2gb of ram. I also noted, that when I did the computer scan, both RAM banks were registering, meaning I know they were both working right before I tried to install the new chips (I did the same crucial.com scan afterwards and it says Bank 1 is empty). The problem seems to be that one corner (on the right of Bank-1) of the card is sticking out just a little bit (it looks like it might be at a little bit of an angle). I've really forced the thing in there, and I'm worried if I press any harder, it may break (my fingers actually hurt). I've also tried putting it in at a bit of an angle, but it always ends up with that corner sticking out a bit. What I'm wondering is how I can get the second 1gb chip to register. I haven't tried resetting the PRAM yet because I don't know if that will help at all (or even what it does). I also haven't tried inserting one of the old 256mb chips into the seemingly dead slot, just to see if it registers. Any help is much appreciated. If you have any questions, just ask and I'll do my best to answer (I don't know a whole lot about computers, though).