Success: GA-Z170X-UD5, i7-6700K, EVGA GTX970, Skylake iMac 17.1

[sunnyj]

@sunnyj Hey man. I upgraded to Sapphire RX590 Nitro+ too, but mine detected as RX 480, I am on Mojave, smbios is 18,3. What's might be worng?

Check out the last post on page 3
https://www.tonymacx86.com/threads/radeon-rx-590.265047/page-3#post-1863527

 

[salomonfr]

@sunnyj thank you. Can you show you iStat GPU memory graph? Mine looks like is not clearable. And I am not doing heavy GPU tasks, just writing code but gpu memory up to half.

 

[sunnyj]

@salomonfr that seems right. I sit at 40% when just browsing with Safari.

 

[GoBanana]

Why is the Crucial Ballistix Elite being displayed as 2400? This is getting confusing haha

I'm also using 2666MHz memory and noticed that at some point the memory speed got reset in BIOS - I never did determine why, maybe it was set to be the highest multiple of the system clock? After manually setting it to its rated speed, its speed displays correctly in About This Mac.