ASRock.com Homepage
Forum Home Forum Home > Technical Support > AMD Motherboards
  New Posts New Posts RSS Feed - new builder, need help with power questions please
  FAQ FAQ  Forum Search Search  Events   Register Register  Login Login

new builder, need help with power questions please
 Post Reply Post Reply Page  12>
Author
Message Reverse Sort Order
  Topic Search Topic Search  Topic Options Topic Options
nangu View Drop Down
Newbie
Newbie
Avatar

Joined: 06 Jul 2017
Status: Offline
Points: 120 		Post Options Post Options   Thanks (0) Thanks(0)   Quote nangu Quote  Post ReplyReply Direct Link To This Post Topic: new builder, need help with power questions please
    Posted: 25 Sep 2017 at 10:17am
The Threadripper 1920X has a temperature offset of 27°C, so Tctl = Tdie + 27°C, when as Ryzen, Tdie is the real CPU junction temperature.

By your HWinfo64 screenshot, the temperatures you should care about are node#0 Tdie and node#1 Tdie, which relates to the two Core Complexes inside the package (look at TR as two Ryzens "glued together", as Intel said)   EDIT: I need to confirm that.

The temperature shown by CAM seems to be close to the Tctl temp reading, but I don't know why it's different. Anyway, if I have to blame one of these two softwares for a wrong reading, it'll be CAM.

The offset thing is mentioned in the TR's Guru3D review: http://www.guru3d.com/articles-pages/amd-ryzen-threadripper-1950x-review,8.html

  


Edited by nangu - 25 Sep 2017 at 10:25am
R7 1700 @3.90 1.25v - GSkill TridentZ 3200c16 Hynix MFR @2933 14-16-16-32 - Fatal1ty Gaming X370 K4 - Gigabyte GTX 1070 G1 - WD 256 Black M2 Nvme as Windows 10 boot drive - EVGA Gold 650W
Back to Top
og_reborn View Drop Down
Newbie
Newbie


Joined: 24 Sep 2017
Status: Offline
Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote og_reborn Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 1:14pm
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!

Quote
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.
Back to Top
parsec View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 04 May 2015
Location: USA
Status: Offline
Points: 4996 		Post Options Post Options   Thanks (0) Thanks(0)   Quote parsec Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 12:14pm
Originally posted by og_reborn og_reborn wrote:

Originally posted by parsec 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?


Tctrl is Tdie + 20° C, so if the two temperatures are measured at the same time, they would be 20°C apart. That's exactly what I see in HWiNFO64 with a 1700X. The figures you quoted don't add up.

Tdie is the correct temperature reading as far as we know. Tctrl is supposed to only have a purpose for the Ryzen 1700X and 1800X, although given the specs, a 1600X may also qualify. How that applies to your Threadripper 1920X in a Fatal1ty X399 Professional Gaming, we don't know, but I'd say it is the same. Tdie is the correct temperature.

But what is CAM showing as the temperature compared to Tdie and Tctrl? How often does the CAM CPU temperature seem to update? Monitoring software takes readings at set intervals, it is not a continuous analog like reading. HWiNFO64 reads every two seconds by default.

What is the difference between the F-Stream reading and the HWiNFO64 Tdie and Tctrl readings? Don't have the CAM software running when you have the other two running.
Back to Top
og_reborn View Drop Down
Newbie
Newbie


Joined: 24 Sep 2017
Status: Offline
Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote og_reborn Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 10:41am
Originally posted by parsec 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
Back to Top
og_reborn View Drop Down
Newbie
Newbie


Joined: 24 Sep 2017
Status: Offline
Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote og_reborn Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 10:24am
here is the link to the youtube video I followed for the thermal paste application.

https://youtu.be/nWu2tcm4wL8


Edited by og_reborn - 24 Sep 2017 at 10:25am
Back to Top
og_reborn View Drop Down
Newbie
Newbie


Joined: 24 Sep 2017
Status: Offline
Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote og_reborn Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 10:19am
Originally posted by parsec 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
Back to Top
og_reborn View Drop Down
Newbie
Newbie


Joined: 24 Sep 2017
Status: Offline
Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote og_reborn Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 10:09am
Originally posted by wardog wardog wrote:

Hello.

Let's start with .......... What MB and processor?

Secondly, two monitoring program running at the same time will/can cause issues as the chip they read from chokes on having two programs access it.

Thirdly, Are you using the latest F-Stream from whatever MB's d/l pages?


My bad! sorry haha. Yep obv I'm a newbie :)

It's the Fatal1ty x399 Pro Gaming and the Threadripper 1920X

The readings do show this difference even when only one or the other is running.

I downloaded the F-Stream software directly before I used it and got these readings.

Thank you!

Edited by og_reborn - 24 Sep 2017 at 10:22am
Back to Top
parsec View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 04 May 2015
Location: USA
Status: Offline
Points: 4996 		Post Options Post Options   Thanks (0) Thanks(0)   Quote parsec Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 10:04am
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.
Back to Top
wardog View Drop Down
Moderator Group
Moderator Group


Joined: 15 Jul 2015
Status: Offline
Points: 6447 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 10:02am
Hello.

Let's start with .......... What MB and processor?

Secondly, two monitoring program running at the same time will/can cause issues as the chip they read from chokes on having two programs access it.

Thirdly, Are you using the latest F-Stream from whatever MB's d/l pages?
Back to Top
og_reborn View Drop Down
Newbie
Newbie


Joined: 24 Sep 2017
Status: Offline
Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote og_reborn Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 7:57am
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
Back to Top
 Post Reply Post Reply Page  12>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.04
Copyright ©2001-2021 Web Wiz Ltd.

This page was generated in 2.703 seconds.