I've been having issues with one of my G.Skill Trident Royal RAM sticks (16 GB), which is around 6 years old. I'm running into errors when testing it with MEMTEST86. I believe it's 3200 MHz. Since it seems hard to find single sticks for sale, I've already ordered a new set from Corsair—specifically, the Vengeance LPX 32GB (2x16GB) DDR4 3600MHz C18 UDIMM. I'm wondering what configuration I should use moving forward: should I run all three sticks together, just the two new ones, or mix and match them? Also, if I go with just the two new ones, what should I do with the extra stick since I only have one desktop?
2 Answers
Have you checked with G.SKILL for a warranty? A lot of memory brands offer lifetime warranties, and they might replace the faulty stick for you. Corsair recently did that for me when I had an issue last month.
It's best to go with just the two new sticks to avoid any compatibility issues. You could sell the extra old stick, or keep it as a backup in case you need to troubleshoot in the future.
Thank you!

Didn't even consider this--thanks so much!