F4-3200c-14 Q32GTZSW compatible with F4-3200C16D-16GTZB?

[AtomicNixon]

I'm looking to boost my 32 gigs (4x8) to 64 and would like to know if these very similar kids will play nice. If not, what would be more suitable? Going into a Threadripper system.

[emissary42]

There is no guarante these two kits can run together, it might work or it might not work (even with manual settings). That aside, you will very likely have to manually configure the memory for anyhting above default speed regardless. While the F4-3200C14Q-32GTZSW should have no issues running at the XMP timings of the F4-3200C16D-16GTZB, the function will probably be disabled by the motherboard.

So usually better avoid mixing kits and just get a single 64GB kit out of the RAM configurator for your MB instead, like it is stated in the memory FAQ.