trs96
Moderator
- Joined
- Jul 30, 2012
- Messages
- 25,574
- Motherboard
- Gigabyte B460M Aorus Pro
- CPU
- i5-10500
- Graphics
- RX 570
- Mac
- Mobile Phone
That's correct the Q6600 does not have SSE 4.1 so it requires an older version of macOS. I believe El Capitan would work but not 100 % sure on that. Do some research.I replaced the PSU in his old computer and had it working again. The Q6600 CPU appeared to be not (High) Sierra capable.