2019 iMac 21.5”

[lwmille]

I purchased this computer and it had the i3-8100, I opened it up replaced the processor, ram, and put a SSD in it. I used an i7-8100, x2 OWC 8GB PC21300, and a crucial BX500. The computer booted fine and worked until I went to update to sequoia from mojave where it consistently began crashing. I attempted to go to disc utility after this happened and would get a grey screen and eventually crash. I downloaded sequoia on a flash drive and can boot to the installer but after clicking continue to the installation it will crash. Anyone experienced a similar situation that could possibly offer some insight?

Before I did all of this work, the computer was super slow but would run sequoia with no issues.

 

[mreg376]

Very hard to diagnose when you've installed an unsupported processor. Should have probably just done the RAM and SSD. I'm running a 2017 27" and it's still fast (came with an SSD still going strong, and I upped it to 64GB OWC RAM). and still on Ventura. I use it for remote work and it 's rock solid. I've learned with a prior machine that once you do the heart transplant all bets are off and you're on a frontier.

 

[lwmille]

Very hard to diagnose when you've installed an unsupported processor. Should have probably just done the RAM and SSD. I'm running a 2017 27" and it's still fast (came with an SSD still going strong, and I upped it to 64GB OWC RAM). and still on Ventura. I use it for remote work and it 's rock solid. I've learned with a prior machine that once you do the heart transplant all bets are off and you're on a frontier.

Ended up being the ram, brand new from Amazon. 😕

 

[mreg376]

Time will tell...