OK Day 3. I installed Logic 10.5.1 yesterday, which is what motivates my Hackintosh builds, The "playhead" was not drawing itself which was very bizarre. I've been doing a lot of reading mostly on TonyMac but also on Logic fora and I concluded it was a metal compatibility issue. I tried to test the GPU using MetalTest.app, Geekbench and Cinebench but niether of the 3 would allow it which corroborated my feelings. There have also been some subtle graphics glitches.
I reseached my cheap GT730 card purchase throughly. Using theTechPowerUp GPU database (
https://www.techpowerup.com/gpu-specs) the card i found on ebay
BEFORE buying it clearly came up as "Keplar" chip based GT730 thus making it Catalina and metal compatible. I suspect their database is fallible and that my card is
NOT Keplar based as there were puzzling anomalies on further researching the card this afternoon (I'm in the UK).
I decided to attempt to use one of PastryChef's EFIs from post
#1360 built for using IGPU as clearly PastryChef's EFIs are very solid and should be working but somehow never have on my system. I changed my BIOS to IGFX, swapped my DVI cable to the inbuilt GPU and the EFI failed again. I booted a few more times in verbose mode to see if I could spot anything (not that I know what any of it means) but there was a "panic".
I decided to physically remove the card and the EFI booted smoothly, the Logic playhead was visible and I could test the GPU using Geekbench.
PastryChef had a feeling all along my card was duff and he was right
DESPITE the wealth of information suggesting the card was compatible. I had a diffcult first few hours with the install which I suspect was all to do with the card. Were it not for that I think the install may have been seamless from start to finish.
The system has been running well despite the graphics issues and now they're gone.
I'll install my dual boot windows system at some point.
Many thanks
Tony