Radeon R9-280X 6GB
GA-x58a-ud3r
24 GB Ram
i7 940
4K LG 40UB8000
1. I successfully upgraded from Snow Leopard to Mavericks 10.9.5
on new SSD. No problem w/ Mavericks.
2. Am booting successfully into previous Snow Leopard drive on the R9-280X 6GB,
but my only resolution choice is 1024...
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