![I tried to purchase some RAM for my computer, but the grooves don't match and the new RAM sticks won't fit in. I thought all laptop RAM sticks were compatible and interchangeable. I tried to purchase some RAM for my computer, but the grooves don't match and the new RAM sticks won't fit in. I thought all laptop RAM sticks were compatible and interchangeable.](https://preview.redd.it/i-tried-to-purchase-some-ram-for-my-computer-but-the-v0-zy9ecpfs5tt81.jpg?width=576&format=pjpg&auto=webp&s=6e549948a2efe10cf272375436723a60776c2280)
I tried to purchase some RAM for my computer, but the grooves don't match and the new RAM sticks won't fit in. I thought all laptop RAM sticks were compatible and interchangeable.
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CMS 8GB (2X4GB) DDR3 10600 1333MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 780 Dt/Mt/Sff Desktops - A69 at Amazon.com
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EZDIY-FAB 5V ARGB Memory RAM Cooler DDR Heatsink for DIY PC Game MOD DDR3 DDR4- White (Compatible with Aura Sync, RGB Fusion and Mystic Light Sync)-2 Pack-PI061 at Amazon.com
![OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com](https://m.media-amazon.com/images/I/81IxWvpgt5L.jpg)