Apple Hardware test won't run (probably because I wiped my drive) and Internet Recovery fails too.these issues have occurred through at least the last few major OS updates Completely wiped the SSD and reinstalled High Sierra (the max this machine can take.As mentioned, replaced HDD with SSD and maxed RAM to 16GB.I log in, then bam, get logged out shortly after. It also looks like someone has taken a knife across the screen, showing long lines of distortion fragments. When booting up, the login screen often looks pixelated, and I can see a black/gray grid in certain spots behind the login screen. ![]() Specifically, it's been logging me out a handful of times before it "sticks" and lets me use the computer. Then today I logged in to pat myself on the back for getting this up and running again and it was exhibiting the same behavior I was trying to solve. I reset the PRAM/NVRAM and I thought all my problems were fixed. I can't remember all the problems I've had, but over the last few years I replaced the HDD with an SSD and a few days ago I boosted the RAM from 8GB to the max of 16GB. They have light needs, but I'd love to start introducing them to messaging and email with family, plus some educational games. ![]() I ended up with an Mid 2010 21.5" iMac that I wanted to dust off and give to my kids.
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