I recently purchased a 16GB DDR5 RAM stick rated at 4800Hz without realizing that my laptop already has a 5600Hz stick installed. Since I can't get a refund, I'm wondering if using both sticks together could cause any long-term issues for my laptop. Will it affect performance or potentially damage my system?
5 Answers
You likely won't have any issues in terms of damage, but you might notice lower performance than expected. Mixing RAM isn't usually a big deal, but if you run into problems, they can be significant. Just be prepared for the possibility.
You'll be fine! Both RAM sticks will just operate at the speed of the slower one, which is 4800MHz in this case. Stability can vary, though; sometimes it will run just fine, and other times it might not be super stable. Just keep an eye on it.
Check the CAS Latency on your RAM sticks as well; that's another important spec. If they don't match, you might need to manually adjust the settings in the BIOS. Otherwise, they'll just run at a safe, slower speed. Mismatching sticks can stress the memory controller more than normal.
Honestly, I would suggest selling both sticks and getting a proper 2x16GB kit. It will save you a whole lot of trouble in the long run. You might luck out and have everything work perfectly, but if the CAS latencies differ, you'll be troubleshooting for ages.
Both sticks will clock at 4800MHz, but I’d recommend getting a matched kit for the best performance. Mixing RAM can lead to headaches, especially with timings. It could work fine, but you may end up spending hours tuning it to function optimally.
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