Cooling- AMD EPYC 9005

Hey Folks,
First post but have followed for a long time and really respect the community here. Hoping to understand and reconfigure my homelab situation and hoping for feedback.

I wanted to add a bigger playground and put together a pretty sweet AMD EPYC 9135 over the summer. I used the recommended Silverstone water cooler and set it up.
Doing Memtest checks though I was successful but really put off by the temperatures. I understand that memtest may be unreliable with sensors but I struggle to find documentation and information regarding higher level cooling or pre testing.

Ultimately, the CPU runs at 80-90c with the cooler with 3x 120mm fans and 2 additional 120mm fans in the case. So water block plus 5x fans is still having it test without what I imagine is a high load, at around 90c. Truth is, I don’t know how to cool this before even adding gpus/nics to the board and filling the case.
I checked thermal paste for contact which is adequate but have not proceeded since noting holding temperatures 80/90+ in initial testing.

If I can better understand maybe how to test or what the tolerances on this would be, I’d be more comfortable with messing with it.

Thank you for your input!

does the rad actually feel hot? the pump will be thousands of rpm if it’s doing its job properly. maybe it’s down in fan rpm land instead of full speed?
400w is ez for my Silverstone 360s

Thank you for replying Wendell!

I’m going to power this up over the weekend again and physically check the radiator heat. Then I should probably check in the BMC for what it’s doing on fan speeds.
Because it’s a supermicro board I’ve typically changed most of the machines to use standard speeds because they error out when using optimal and full was very loud of course in a small home setting. This might be one of the hardware situations though with the EPYC where full is the best option.

The pump probably wont be super loud on full, is the one exception.

Ha, I’m watching the new video on DDR5 and I appreciate you talking about a lot of the general cooling aspects in it. Thank you!