Bad caps not the problem for PLM losing memory?

So today I decided to pull out my old 2.4 PLM that I haven't used in years and recap it. I removed the first two 50v 100 μF caps and tested them with my ESR tester. They were right on spec and ESR was 199 to 220 mΩ. The replacements are like 350 mΩ which is fine but the point is these aren't failing. I tested the remaining caps while still installed and they are all good. I should have checked before wasting time replacing caps that were actually fine. So the random memory loss resulting in the PLM links table clearing out does not appear to be because of bad caps.