I had a 5820K for a while, got it specifically because I wanted to try doing 3200mhz quad channel memory. The TLDR of it is that it's definitely not worth it.
Since you are already running in quad channel, you really don't need to worry about your ram speed. Just running in quad channel already puts you ahead of most of us in terms of your ram at least.
On top of that, it's unlikely that you will be able to get 3200mhz working in quad channel. It took me 3 motherboards and several ram kits which were QVL to get it working on that CPU and even then, it only worked for about 2-3 months until the IMC degraded and couldn't hold 3200mhz in quad anymore. That CPU is just not designed to hit 3200mhz in quad channel mode. Even though it is technically possible, it's REALLY pushing it for that CPU.
I would strongly advise against it.
As I write this I see that the guy posting above this got it working on the same mobo I had for longer. Good for him. IMO, not worth the effort.
250GB nvme + 500GB SSD + 4TB HDD
Samsung 4K 65 inch TV
Pixio PX276 27inch 144Hz 1ms 1440p
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