Apr 03, 2014

Can unmatched memory modules be used together in a laptop?

Would it cause any problems using unmatched RAM in a laptop (assuming both RAM modules are compatible with the laptop)? I currently have 4GB (2 x 4GB) in a HP Pavilion laptop running Windows 8, and also have a single, compatible 4GB module. So I could have 1x4GB and 1x 2GB for a total of 6GB of RAM, but it would obviously not be a matched pair. Would this be likely to cause any problems or would it be OK?


I know this is not the answer that you want, but It may or may not work fine. Ideally you should upgrade in matched pairs; with different sizes and (potentially) manufacturers, there is a chance it could cause stability issues. Common things I’ve seen happen are just getting stuck on a boot screen or BSOD. On the other hand, I’ve also seen it work fine. I think there are just too many variable to give a definitive answer. If it was me, since you already have them laying around, I would just give it a try, you probably aren’t going to hurt anything.

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