- Joined
- Nov 28, 2007
- Messages
- 25,564
- Reaction score
- 486
- Points
- 83
- Location
- Blue Mountains NSW Australia
- Your Mac's Specs
- Silver M1 iMac 512/16/8/8 macOS 11.6
Did you download, burn to CD and run Apple Hardware Test?
It's really fluctuating anywhere between 80% idle to 5% idle, its really weird. I swear it wasn't this laggy before I had it upgraded!