aiya, are you just using a 120.1 rad for a CPU and GPU block? You might want to think about getting a 120.2 or even a 120.3.

Your temps look a bit high compared to what ATITool reports my temps as for my X1900XT 512. Mine idles at 31-32c and load is about 40c. I have no clue what my ambient is, maybe 70-75f. But I don't think it would be low enough to make that much of a difference.