Glenn Posted August 14, 2020 Share Posted August 14, 2020 Hello.. I have an M4800 (Specs attached - along with config.plist.Hope that's enough?). I have two SSD internal drives - one with Catalina, one with elCapitan (as a fallback). Both work fine (couple of things e.g. sleep missing, display luminance, but nothing fatal). In the Optical Drive Bay I have a caddy holding a 3rd drive (for Data storage). The thing is… el Capitan handles any drive installed in that Bay perfectly normally - good speed in and out. But Catalina reads any of those same drives in it really really slow - slow to recognise folders and files and really slow to open and save them - beachball spinning for ages… I'm wondering if anyone knows if there's anything I could try to solve this? (Of course, curing Sleep would be a welcome bonus)! M4800 Sys Specs and Config.zip Link to comment Share on other sites More sharing options...
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