Author Topic: Threadripper & Ryzen only builds (3rd Gen starts on page 50)  (Read 234094 times)

2020-01-13, 11:47:47
Reply #780

David Males

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Hey guys,

Recently I upgraded my workstation with 3960x on ASUS ROG STRIX TRX40-E GAMING mobo, cooled with NOCTUA NH-U14S TR4-SP3 + 4x NOCTUA NF-A14 PWM ..
I wanted to ask, can I fully trust the cpu temperature reader on motherboard's display?

The reason I ask is that when I do stress test on lets say 4000mhz , the display shows cpu temp 60-63 degrees, but in HWMonitor it reads 74 deg., which is fine also I guess, but being in the lower 60s sounds safer to me in the long run. So which one should be more correct? Shouldn't both of these read the temps from the same sensor?? Any thoughts? :)


2020-01-13, 12:35:12
Reply #781

Juraj

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HWiNFO64 (preferably to HWMonitor) Core Temperature is the accurate one.

Here is good explanation of the individual sensor readings : https://www.hwinfo.com/forum/threads/cpu-temp-sensors-explanation.5597/#post-20914

3rd gen Threadrippers throttle around 85C, the maximum safe limit is 95. With NH-U14S, the stock temperature at 25C room ambient should stabilize between 80-85C.
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2020-01-13, 16:09:17
Reply #782

twoheads

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HWiNFO64 (preferably to HWMonitor) Core Temperature is the accurate one.

Here is good explanation of the individual sensor readings : https://www.hwinfo.com/forum/threads/cpu-temp-sensors-explanation.5597/#post-20914

3rd gen Threadrippers throttle around 85C, the maximum safe limit is 95. With NH-U14S, the stock temperature at 25C room ambient should stabilize between 80-85C.

80/85C sounds scary, even with well ventilated case + additional fans? Would you choose NH-U14S anyway?

2020-01-13, 16:17:36
Reply #783

Juraj

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But that's exactly the average of almost every single review, here is Kitguru's:



It's possible the temps will be up to at least 10C lower with Corona for most part (maybe even due to AVX offset), but then if it crashes during LightMix denoising :- ) ? It's necessary to make sure the PC is stable under the worst possible conditions, so it will never destroy some deadline of yours at 3.am.
Would I choose it? Well..no, but it's not like there is any choice to make. It's UH-14S (Wraithripper/Arctic50/SilverArrow are all 1-3C worse but otherwise the same), or custom water loop.

It's possible to see if Q1 will bring some new solutions onto market, particularly AIOs because we've seen with air coolers no one can even match Noctua. Arctic 50 & Silver Arrow are like 30perc. bigger and heavier than UH14S and still perform worse.

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2020-01-13, 20:15:15
Reply #784

danio1011

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My build just passed a couple of prime95 memory test passes with memory at 3600mhz.  Memory peaked at 60C but was mostly around 48.  The cpu was high sixties to high 70s for the first 10 minutes.  Some point after I left the room it reported a max temp of 90.  So maybe at the end of the memory pass prime hits the cpu harder or something.  When I came back in it appeared to be unthrottled and back at 78.

Installing 3ds max, I’ll be curious how a couple hours of rendering and then denoising treats it.

2020-01-13, 22:40:16
Reply #785

Juraj

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So, onto the rumoured 8-channel platform, apparently there never even was such product to begin with :- )
I guess that puts an end to waiting for anything better than the top crop of TRX40 boards, it won't get better than Zenith II or Aorus Xtreme.

But seeing the benchmarks from Epycs, the 8-channel doesn't do anything, it's all about latency with Corona, not bandwidth.

https://www.anandtech.com/show/15359/trx80-and-wrx80-dont-exist-neither-does-the-intel-lga1159-socket

I also went to check social channels of G.Skill to see if their rumoured product ever existed (fast & high capacity DDR4 memory). They promised it twice, once in October, and then again in December.
Apparently also nowhere and they don't reply to anyone regarding this. They already pulled something like this once by promising super fast 192GB DDR4 kits for the 3175X Xeon ( I guess to all 10 of owners who planned to afford it ). That never existed either.

So at the moment, the fastest realistically available memory for 128GB to 256GB configuration is 3200 @ CL 16/18/18/38 for very hard to get G.Skill set, or 16/20/20/40 for Corsair.

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2020-01-13, 23:23:39
Reply #786

danio1011

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So, onto the rumoured 8-channel platform, apparently there never even was such product to begin with :- )
I guess that puts an end to waiting for anything better than the top crop of TRX40 boards, it won't get better than Zenith II or Aorus Xtreme.

But seeing the benchmarks from Epycs, the 8-channel doesn't do anything, it's all about latency with Corona, not bandwidth.

https://www.anandtech.com/show/15359/trx80-and-wrx80-dont-exist-neither-does-the-intel-lga1159-socket

I also went to check social channels of G.Skill to see if their rumoured product ever existed (fast & high capacity DDR4 memory). They promised it twice, once in October, and then again in December.
Apparently also nowhere and they don't reply to anyone regarding this. They already pulled something like this once by promising super fast 192GB DDR4 kits for the 3175X Xeon ( I guess to all 10 of owners who planned to afford it ). That never existed either.

So at the moment, the fastest realistically available memory for 128GB to 256GB configuration is 3200 @ CL 16/18/18/38 for very hard to get G.Skill set, or 16/20/20/40 for Corsair.

Hi Juraj - just out of curiosity: Why not go with the G Skill Neo 3600 16/19/19 16gb chips?  Is the 18 vs 19 timings the deciding issue and impacts things more than the 400mhz difference?  Or are you looking for 32gb chips? 

Just curious if I made the right call in my build or if the difference should be negligible.

2020-01-13, 23:44:17
Reply #787

Juraj

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Hi Juraj - just out of curiosity: Why not go with the G Skill Neo 3600 16/19/19 16gb chips?  Is the 18 vs 19 timings the deciding issue and impacts things more than the 400mhz difference?  Or are you looking for 32gb chips? 

Just curious if I made the right call in my build or if the difference should be negligible.

I have my doubts that 3600 CL16 would be stable if you populate all DIMM slots :- ). Technically the platform supports up to 4666 MT/s overclock, but the higher the lanes utilization, memory ranks, memory capacity, etc.. contribute to overall stress load on memory controller and the guaranteed stable speed gets lowered.
This speed should be 3200 for 8x16GB or 8x32GB. Interestingly, 8x16 is officially only 2666 but we know 2933 is stable, while 4x32 is 3200 officially, so theoretically 4x32 could run at 3600, but someone would have to test that. But 8x 32GB will definitely stop at 3200, if it was stable, someone would sell that kind of kit, but fastest available 8x32 GB kits are 3200 so that tells us something.

I am already set on 256GB ram, 128 GB has been serving me really well (and I am able to utilize it 90perc. ) and since I plan to use this PC for next few years hopefully I would like to have some future proofing.
Also, I remember how I paid 750 Euros for 64GB of memory in October 2018, only to buy another 64GB kit for 300 Euros year later. The peak memory prices were painful, and they will be painful again. I am not waiting for them to rise up.

18 vs 19 will btw internally become 18 vs 20 because Zen architecture by default prefer "Gear down mode" in Bios, it makes for more stable memory but will round up timings to the nearest even integer value. But those secondary timings aren't that crucial anyway, I would never waste time in bios playing around with them only to have my PC crash few days later, this is hobby for Reddit dwarves :- ).

You can test it btw ;- ) Buy another kit, you can always return it :- ).
« Last Edit: 2020-01-13, 23:50:59 by Juraj Talcik »
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2020-01-14, 01:32:43
Reply #788

danio1011

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Hi Juraj - just out of curiosity: Why not go with the G Skill Neo 3600 16/19/19 16gb chips?  Is the 18 vs 19 timings the deciding issue and impacts things more than the 400mhz difference?  Or are you looking for 32gb chips? 

Just curious if I made the right call in my build or if the difference should be negligible.

I have my doubts that 3600 CL16 would be stable if you populate all DIMM slots :- ). Technically the platform supports up to 4666 MT/s overclock, but the higher the lanes utilization, memory ranks, memory capacity, etc.. contribute to overall stress load on memory controller and the guaranteed stable speed gets lowered.
This speed should be 3200 for 8x16GB or 8x32GB. Interestingly, 8x16 is officially only 2666 but we know 2933 is stable, while 4x32 is 3200 officially, so theoretically 4x32 could run at 3600, but someone would have to test that. But 8x 32GB will definitely stop at 3200, if it was stable, someone would sell that kind of kit, but fastest available 8x32 GB kits are 3200 so that tells us something.

I am already set on 256GB ram, 128 GB has been serving me really well (and I am able to utilize it 90perc. ) and since I plan to use this PC for next few years hopefully I would like to have some future proofing.
Also, I remember how I paid 750 Euros for 64GB of memory in October 2018, only to buy another 64GB kit for 300 Euros year later. The peak memory prices were painful, and they will be painful again. I am not waiting for them to rise up.

18 vs 19 will btw internally become 18 vs 20 because Zen architecture by default prefer "Gear down mode" in Bios, it makes for more stable memory but will round up timings to the nearest even integer value. But those secondary timings aren't that crucial anyway, I would never waste time in bios playing around with them only to have my PC crash few days later, this is hobby for Reddit dwarves :- ).

You can test it btw ;- ) Buy another kit, you can always return it :- ).

Ok that makes sense.  I think I will prioritize getting another kit, then, for testing.  I may return all of it (even the original 64gb) if I can't reach 128gb.  64 just isn't enough these days.  Although I suppose I could run this 3600 at 3200, but then the CAS would be slower...I wonder what the real world effects of that nanosecond (or two) really is.

2020-01-14, 11:11:12
Reply #789

Juraj

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When you lower the frequency, you can also lower the timings, none of these things are fixed :- ). These are overclocked modules.

It's actually strategy some people take, they buy much higher frequency modules and then run them at highest (but lower than bought one) stable frequency with fastest timings they can get.
But this requires bit of patience and of course those modules aren't on any QVL set. There should even be some UEFI presets for memory you can just pick from.

So 3600 16/19/16/39 can become 3200 14/18/18/38 for example or maybe even faster (14/16/16 ?).
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2020-01-14, 14:50:26
Reply #790

twoheads

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Would you recommend Corsair Vengeance LPX, DDR4, 128 GB,3000MHz, CL16 (CMK128GX4M8B3000C16) as stable solution for 3970X? (no OC needed)

I can get 128GB for 830 Euro (tax included)

2020-01-14, 14:57:47
Reply #791

Juraj

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Can't do personal recommendations, you will blame me if it's not stable at sold speed ;- ).

If it's not on QVL list (and absolutely nothing useful is ever there), you just have to take a risk.
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2020-01-14, 15:21:56
Reply #792

twoheads

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Useful as always ;)

But sure, I completely understand your point.

 CMK128GX4M8B3000C16 is on the gigabyte trx40 aorus master list though, so maybe....maybe

2020-01-14, 15:32:17
Reply #793

lupaz

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Just a quick message: I replaced a Ryzen 1800x for a 3950x and it seems to be working great!
I didn't change anything else on the computer other than updating the BIOS.

Thanks for your advice Juraj (and others).

2020-01-14, 16:04:37
Reply #794

twoheads

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Great news Lupaz,

Any corona speed tests yet? Scribble something if you have time.