new builder, need help with power questions please

p.p.s seems like that first image was scaled down a bit! you can "view image" to see it bigger or the highlight is that the ASRock utility says 72c, while the other says 46c

You need a third opinion for the CPU temperature, I don't trust the CAM software, but that remains to be seen.

Try downloading and running the Sensor display of this software, HWiNFO64:

https://www.hwinfo.com/download.php

Your "... plenty of quality thermal compound." comment worries me. While you want TIM over the entire surface of a CPU, the amount you want is minimal, the less used, the better. A thick layer of TIM is not good, and prevents the transfer of heat from the CPU to the CPU cooler.

But the 72° C reading in F-Stream seems too high for your VCore and clock speed. Since it is higher than the reading in the UEFI/BIOS, it may be wrong, and displaying the AMD Tctrl temperature, which as far as we know, is not applicable to a Threadripper processor.

If you run the CAM software by itself, without F-Stream running, is the CPU temperature the same as when both programs are running?

You mentioned questions about wiring connections and power, but nothing about that in your post.

parsec wrote: You need a third opinion for the CPU temperature, I don't trust the CAM software, but that remains to be seen. Try downloading and running the Sensor display of this software, HWiNFO64: https://www.hwinfo.com/download.php Your "... plenty of quality thermal compound." comment worries me. While you want TIM over the entire surface of a CPU, the amount you want is minimal, the less used, the better. A thick layer of TIM is not good, and prevents the transfer of heat from the CPU to the CPU cooler. But the 72° C reading in F-Stream seems too high for your VCore and clock speed. Since it is higher than the reading in the UEFI/BIOS, it may be wrong, and displaying the AMD Tctrl temperature, which as far as we know, is not applicable to a Threadripper processor. If you run the CAM software by itself, without F-Stream running, is the CPU temperature the same as when both programs are running? You mentioned questions about wiring connections and power, but nothing about that in your post.

As for the thermal compound, yes I did read about applying too much. I found a youtube video where a guy does benchmarks based on some extensive testing and variations and used his method that got the best results (big blob, as best as I could).

But perhaps my amount was more than his? I tried to match it but I could only eyeball it as no one seems to suggest a precise amount.

Yes the CAM software produces lower temperature readings consistently whether I am running both programs or not, give or take a couple degrees.

My main questions about power were just that I don't understand how to read the voltages other than seeing that the 5 & 12 volt are in spec, which they appear to be. But the rest of the readings are unfamiliar to me and not mentioned in any of the docs. I just want to make sure I'm not going to cause anything to burn out soon, even though it all appears to be working right now.
My main area of doubt was just the additional 8 pin and 4 pin ATX 12v plugs on the board. The instructions say "please plug" power into the 4 pin, so I did. But the instructions use different wording for the 8 pin. It did seem I was also supposed to plug that one in as well, so I also did. I just wasn't sure if it was necessary since the wording was different, and it doesn't say what the power is for.

Thank you so much!

I will look into that program you linked now. Thanks again!


Edited by og_reborn - 24 Sep 2017 at 10:21am

parsec wrote: ...displaying the AMD Tctrl temperature, which as far as we know, is not applicable to a Threadripper processor.

Ok, after running the HWinfo software I can see the two different temperature readings for Tctrl and Tdie. It looks like that's the difference. The first is reading between 53-60c at idle, while the Tdie reads 25-35c.

So the Tdie is the one I ought to be looking at then?


Edited by og_reborn - 24 Sep 2017 at 10:42am

The CAM software does not differentiate the two readings. But I assume it's using the Tdie? It seems to update about once per second but it's noticeably variable by a little.

Here is a reading from HWinfo only, with Fstream and CAM not running:



And here are HWinfo and Fstream running at the same time:




At this point I am mostly concerned about the voltage readings I don't understand. If it's not a trouble could you please let me know based on all my screenshots if you think anything is amiss in any of the readings?
Thank you again!

My main questions about power were just that I don't understand how to read the voltages other than seeing that the 5 & 12 volt are in spec, which they appear to be. But the rest of the readings are unfamiliar to me and not mentioned in any of the docs. I just want to make sure I'm not going to cause anything to burn out soon, even though it all appears to be working right now. My main area of doubt was just the additional 8 pin and 4 pin ATX 12v plugs on the board. The instructions say "please plug" power into the 4 pin, so I did. But the instructions use different wording for the 8 pin. It did seem I was also supposed to plug that one in as well, so I also did. I just wasn't sure if it was necessary since the wording was different, and it doesn't say what the power is for.