TristanN

There's no "right" or "wrong" way to setup fan curves. They are really representation of what you like and want. Temps are relative to stress, CPU, voltage and so on. Without knowing what CPU voltage was under stress testing, its hard to say anything about it. 78C is higher than what it should be. Cinebench is not that heavy. But then again, if you have PBO set to auto, that might be contributing.
 
With curves, you are selecting between two options. Temps and noise. Nothing else really. Less noise means higher temps are you are setting fan speed slower. CPUs (everything Intel and AMD Ryzen) are fine up to 80C+ under full stress load. Each person has their own preferenced there too, mine is 87C under full stress testing. GPUs are fine to 85C, my own gaming temp is 80C because of too high fan noises.

is the fan itself actually doing that or just the rpm sensor?

Guys sorry I’m stupid, using Apple Cinema Display and forgot to unplug usb cable from monitor to my Mac 🤦‍♂️ 

it's actually recommended in general that you build a PC outside the case to make sure everything works correctly, then put it inside. For short term operation, there's no problem, just don't go dropping anything on your setup.

I would only suggest doing it to test the system not for extended use.
But no it wont hurt anything.

yeah its perfectly fine, I've done it a lot before 

this is completely fine. there is nothing wrong with that. you are safe doing this i have done this building other systems in the past

No problem, happy to help!

NH-D15 is a great cooler choice. But you won't want to OC, 3rd gen Ryzen doesn't really OC well to begin with, nor does it yield much performance gained, fast RAM (3600MHz+, CL16 or better) and adjusting PBO settings in Ryzen Master is best if you want to ‘OC’. 3rd gen Ryzen CPU's seem to show faster degradation symptoms if higher voltages are applied (something I recently learned). For long term 'safe' OC'ing voltages below 1.375V were considered to be fine. However, this rule of thumb is adopted from overclocking Intel CPU's, and previous generations of AMD CPU's. So, for long term use I would NOT recommend OC'ing via the standard Manual method in Bios. Keeping the voltage low (1.27500V or lower) and adjusting PBO settings is the safest way to squeeze out some extra performance. But even then, only expect 100-300MHz at most.
Not safe to recommend high voltages with these CPU's. Good read on voltage issues with Zen2: (And why I recommend low voltage)
https://www.reddit.com/r/overclocking/comments/ejd5c9/1325v_is_not_safe_for_zen_2/
 

Ok thank you, I will wait until Sept 1, if no rumors about upcoming AMD event I will buy then. I bought a Phanteks P500A so Noctua should fit
 
@Shimejii Thanks for the info!

Yeh my 3800x gets to about 84c at 4.4ghz at 1.375v with the nH-d15
 

those words mean nothing
if anything, by the time games utilise 10 cores, the 3900x will probably be lacking in single thread performance to run the game well anyway, compared to options of that time
 
a 3700x is enough unless your video editing workload is heavy
 
i suggest waiting 2-3 weeks if possible? AMD might be announcing their new lineup soon
but if you wanna buy one today, the 3700x is a better choice than 3900x, unless you really need those extra cores
just make sure you have a gpu or you wont be able to use the computer in the meantime anyways

3900x just has the 12 cores, so it allows you to be more flexible than the 8 cores. the 3700x and 3800x are about the same, 20$ if you plan to Manually Overclock the CPU to 4.4ghz or so, otherwise get the 3700x.
 
Personally speaking? Get the 3700x, you need to build an audience first before spending a ton of money on a setup. You need to spend years getting that audience so it should last you that.

the 3800x is not worth the extra money compared to the 3700x in my opinion. As for deciding between the 3700x and 3900x, it mostly comes down to your budget, and what you're gonna do w the pc. Both are great chips, but do you really need the extra power of the 3900x for the increase in price? From what you've listed, I would say it isn't, and you should focus the money on more ram or storage if you're gonna have videos on your computer. There is also the ryzen 4000 series, which is supposed to come out in October, if you can wait for that

From a long time user of the R7 1700, a R7 3800x, and now an R9 3900XT trust me when I say that an 8 core 16 thread CPU is enough, these are still productivity monsters, the only reason there is justification for higher core count is because you are on the same socket and it's available for a reasonable price. But if you compare this to anything Intel that pre-dates Ryzen you will absolutely blow it out of the water. So don't bother with the R9 there's really no real 'future proofing' with an R9. And in a 2-3 years time-frame you can just get a 4th gen Ryzen CPU as an upgrade. 
 
However, I would say for only $30 more the 3800x is worth it, basically it is a fully OC'd 3700x right out of the box. But keep in mind it has a much higher TDP and will run quiet a bit hotter than the 3700x, so a large air cooler or a 240mm AIO would be my recommendation.