![]() You can try running Memtest86 to check for memory issues. ![]() Unfortunately the diagnostics rarely detect problems, but if it does.at least you know there is a hardware problem. Try running the Apple Diagnostics to see if any hardware issues are detected. I have no personal experience with it since our organization usually uses Crucial or possibly OWC at times. Since this Corsair memory seems to be branded for Apple, it may be Ok. FYI, it is unlikely for two memory modules to fail at the same time. ![]() Also try installing a single stick in a different memory slot to make sure the slot is not bad. ![]() If you still have issues, then remove that module and try the other older module. I would remove the new Corsair memory and install one of the old memory modules to see how it work. You still did not answer the question of the make & model of the memory you removed before installing the Corsair memory. Make sure to disconnect all external devices in case one of them is causing a problem. The "Machine Check" error in the Kernel Panic indicates a hardware issue of some sort. I did so several time and eventful the write speeds were restored to the ~500MB/sec expected and have stayed there. Grant suggested letting the computer "soak" in safe mode for a couple of hours. You need to do several safe mode boots to fully restore lost performance. This OWC article tells how to enable TRIMforce: With the counsel of ASC's amazing Grant Benet-Alder I was able to find that TRIM does matter. Still, just over three years after the SSD install, its write speeds started the downhill trajectory. OWC made the drive I was using and always said enabling TRIM was not necessary. For me it manifested as the Write speeds dropping to half (under 250MB/sec) and continuing to fall as bad as 60MB/sec. ![]() I've found in my own experience and from posts here that with TRIMforce disabled, SATA solid-state drives can start to slow with time. This is a side issue but easy to address for your aftermarket SSD:ĭisk1 - Samsung SSD 870 EVO 1TB 1.00 TB (Solid State - TRIM: No) ![]()
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