Low latency RAM for SN85G4V2?

[BigBadBiologist]

I bought some Corsair XMS-3200C2 for my SN85G4V2 only to find that it won't run at Cas2 in this system. Corsair says AMD systems require this RAM to run at 2.5, but in my hands it won't post unless set to 3. So basically I'm a little peeved and would like some moderately priced RAM with decent timings that will actually work at their advertised settings. Do the HyperX seem to work ok?