I have had the same issue with AC reporting a max of ~1770. *There are a couple other threads here and several on Reddit reporting the same issue, so it isn’t a unique problem. I’m not sure whether the pump is actually running slow, or if AC is reporting speed incorrectly, but it shows max around 1770.*
I haven’t noticed a problem with fan speeds; I think they run full speed and report correctly. *But I will do some further testing and report back here if I see something different.*
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Z690-E, i9-12900k, 2x16 DDR5, 980pro nvme x3, Ryujin-II 360, Strix Animate-II, Evga 3090 ftw3