Usually H8D scales with voltages far beyond that point, but active cooling can sometimes be required. Sadly some "heatspreaders" are not exactly (that) helpful for cooling the ICs. The Ripjaws V with a short trace layout are very similar in that regard, but at least the ICs get airflow from being naked down below^^
My LPX heatspreaders seem to have great contact on the ICs, unlike my rather expensive GSkill kit that have the heatsinks floating around the ICs.
At least GSkill were generous enough with the glue they used, thanks.
I got a SFF PC - TU150 case, with 4 Noctua fans and a bulky NH-D15. The GPU and CPU have great thermals, but since the ram is sitting right below the D15, it seems to be deprived of fresh air.
My GSkills set reaches 50c with 1.48v, that's not great, and I've only known about this issue when I swapped the LPX with a kit that has a temp sensor.
I couldn't get my DJR stable with more than 1.42v, sadly. It would throw errors even with known good timings.
I thought of sneaking a tiny fan under the D15 (40mm or so), and smush it in between the dimms with some Blu Tack to get some air moving in between them sticks.
Thing is, I'm not sure if a 40mm fan will have much of an impact..
But honestly, I can't complain about the performance I got from this $130 kit.
Started with 50GB read speed and 70+~ ns of latency at stock and ended up with +10% all around performance in read\write (inc. cache) and dropped 5ns of latency, all at 1.42v.
Price to performance wise - that's one heck of an IC, totally deserves the 'Ryzen Optimzed' name, even if it doesn't have a sexy-exotic chip like a B-die.
Speaking of B-die, the F4-4000C16D-32GVKA kit I'm currently using is 3 times the price of my DJR and my R3600 refuses to play nicely with it.
I'm currently running a $350 kit at 2133MHz JEDEC speeds, heh.
I had a working mediocre OC, but then I decided to update my BIOS to the new Agesa (1.2.0.6B) and then I started getting WHEA errors and what not.. and the OC went broken.
Anyway, the kit is for the 5900x I ordered (and should arrive any day now), so I'm not really heartbroken by the OC.
What does worry me is the new BIOS that introduced instability to my system.. not sure if I should trust it with the new chip or roll back.