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lololohahaha008

Ryzen 3950X running hot

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Posted · Original PosterOP

Straight to point:

 

Hi,

 

I have a Ryzen 3950X. It’s running hot when idle. I did everything they told me to do in forums and other website. It’s still hot. How can I lower the temps?

 

Thx!

 

 

 

———

 

Longer explanation:

 

Hi,

 

I just build a new PC for my friend and while setting it up, I ran into some problems/questionning

 

First, here are the specs:

  • Ryzen 9 3950X
  • MSI MEG X570 ACE
  • 32GB (4 x 8GB) G.Skill Trident Z Neo DDR4-3000
  • MSI GeForce RTX 2080 Ti 11GB Gaming X Trio
  • Corsair RMx 750W 80+ Gold PSU
  • Western Digital SN750 500GB M.2-2280 NVMe
  • NZXT Kraken Z63

 

Now, when building, everything went fine. Setting up Windows also went fine. Gaming for the first time is the same thing.

 

*BIG TL;DR at the end

 

 

———

 

Part 1:

 

But, after a week, the PC was getting really noisy, from fans and pump, even when doing nothing. I then proceed to look at the CPU temperature. I saw 57-60ºC. The cooler reported a liquid temperature at around 30-35ºC.

 

I look up online and saw some solutions:

  • It’s normal for Ryzen to idle between 40-50ºC
  • Set the power management plan to AMD Ryzen Balanced
  • Set the minimum CPU to 5-20%
  • Update chipset driver
  • Update BIOS

 

So I did the first 4 (need to be physically there to update BIOS, but can't because of the virus) and optimized the fan curves, and nothing has changed. Temps is still the same.

 

When I open Ryzen Master, I can see that the CPU is in Default OC mode with a clock at around 4.2GHz with temps at 60ºC. (**Quick reminder that this is after Windows startup, doing nothing).

 

Pictures:

 

Ryzen_master_hot.thumb.png.40922c8642b9f053e59cd1002fd69c5b.png power_management_1.thumb.png.abdae0fd4e18bfbf0bace7b398a2bc4d.png 

 

power_management_2.png.c520ca74b9547043df9eb63d1679fc9d.png task_manager.thumb.png.60fc40eb64acdea08aada10da785dac0.png

 

 

So TL;DR Part 1, how can I lower my CPU temp when idling?

 

 

 

———

 

Part 2:

 

So it’s the second day since I wrote this, and today, I decided to play with Ryzen Master a little bit.

 

I did a reset of Ryzen Master: nothing changed

 

I put the CPU into Creator Mode with the OC at Eco Mode: nothing changed

 

I set the OC to Manual and decreased the clock down to 3900: a little bit changed (± 5ºC)

 

THEN…

I decreased the maximum voltage for cores down to 1.35V (decrease of 0.1V from 1.45V) and BOOM: temps dropped to 55ºC.

So, ok, what if I continue to drop it? Another -0.1V, another -5ºC.

I repeat it again and decided to stop at 1.20V. And that's when I got the sweet spot of 40-45ºC.

 

rm_oc_1.thumb.png.18d8afc18c2a8ae481ff84f67d94d3e1.png  rm_oc_2.thumb.png.52f0b9dafdccfb1138fea78346e1d363.png

 

So I guess I found it. Decrease the voltage.

 

BUT, it still doesn’t answer my questionning. Why do I need to do that? Doesn’t the CPU and Mobo do it on it self? (btw, everything in BIOS is untouched except fans curves, boot priorities and SMT, so voltage should be at AUTO) I would expect the CPU to come out of the box ready to play, no OC. For someone, like my friend, with only beginner knowledge about computer, it could be risky and frustrating not to know how.

 

And I usually don’t like doing this (OC) because it’s not my PC and I don’t want to  take the risk and break something on it.

 

So TL;DR Part 2:

  • Why do I need to manually decrease the voltage?
  • Is there something I did wrong during the building process?
  • Is there a way to set it to auto?

 

 

———

 

BIG TL;DR:

  • How can I lower the temps on my Ryzen?
  • Why do I need to decrease the voltage? Can I set it to AUTO?

 

 

———

 

Sorry for the long essay.

 

PS: If you need more info, write to me and I’ll provide more picture.

 

Thx!

 

NHL.spacer.pngspacer.pngspacer.pngspacer.png

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Idle temps don't matter (only to a certain degree ofc *pun intended). What are your load temps and clock speeds?


Gaming HTPC:

R7 1700X - Scythe Big Shuriken 3 - Asus ROG B350-i - Asus GTX 1080 Strix - 16gb G.Skill Ripjaws V 3333mhz - Silverstone SX500-LG - 500gb 960 EVO - Fractal Design Node 202 - Samsung 60KS7090 - Logitech G502 - Thrustmaster T500RS - Noblechairs Icon


Desktop PC:
R9 3900X - H100i GTX - Asus Prime X570 Pro - EVGA RTX2060KO - 32gb LPX 3200mhz - EVGA 750G2 - 250gb 970 Evo - 6TB WD My Book Duo (Reds) - Inwin 103 White - Dell U3415W - Qpad MK-85 Brown - Logitech MX518 Legendary - Blue Yeti Platinum - Noblechairs Icon 


Boss-NAS [Build Log]:
R5 2400G - Noctua NH-D14 - Asus Prime X370-Pro - 16gb G.Skill Aegis 3000mhz - Seasonic Focus Platinum 550W - Fractal Design R5 - 
250gb 970 Evo (OS) - 2x500gb 860 Evo (Raid0) - 6x4TB WD Red (RaidZ2)

 

Audio Gear:

Hifiman HE-400i - Kennerton Magister - Beyerdynamic DT880 250Ohm - AKG K7XX - Fostex TH-X00 - O2 Amp/DAC Combo - 
Klipsch RP280F - Klipsch RP160M - Klipsch RP440C - Yamaha RX-V479

 

Reviews and Stuff:

GTX 780 DCU2 // 8600GTS // Hifiman HE-400i // Kennerton Magister
Folding all the Proteins! // Boincerino

Useful Links:
Do you need an AMP/DAC? // Recommended Audio Gear // PSU Tier List 

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Try changing the thermal paste and increasing RPM on the CPU cooler radiator fans and other case fans in general. What thermal paste are you currently using?

 


Hope this information post was helpful  ?,

        @Boomwebsearch 

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Posted · Original PosterOP
5 minutes ago, FloRolf said:

Idle temps don't matter (only to a certain degree ofc *pun intended). What are your load temps and clock speeds?

I don't remember. I'll ask my friend to run some games and I'll come back to you. 

 

Also, do you want me to test with the underclock or without?

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Posted · Original PosterOP
1 minute ago, Boomwebsearch said:

 

Try changing the thermal paste and increasing RPM on the CPU cooler radiator fans and other case fans in general. What thermal paste are you currently using?

 

I'm using the one included in the NZXT Kraken cooler. The pre-applied one

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2 minutes ago, lololohahaha008 said:

I don't remember. I'll ask my friend to run some games and I'll come back to you

preferably not games as no game on the planet maxes a 3950X. I need long and heavy tests. like a 30min render.

I seriously hope he didnt buy it for gaming. 


Gaming HTPC:

R7 1700X - Scythe Big Shuriken 3 - Asus ROG B350-i - Asus GTX 1080 Strix - 16gb G.Skill Ripjaws V 3333mhz - Silverstone SX500-LG - 500gb 960 EVO - Fractal Design Node 202 - Samsung 60KS7090 - Logitech G502 - Thrustmaster T500RS - Noblechairs Icon


Desktop PC:
R9 3900X - H100i GTX - Asus Prime X570 Pro - EVGA RTX2060KO - 32gb LPX 3200mhz - EVGA 750G2 - 250gb 970 Evo - 6TB WD My Book Duo (Reds) - Inwin 103 White - Dell U3415W - Qpad MK-85 Brown - Logitech MX518 Legendary - Blue Yeti Platinum - Noblechairs Icon 


Boss-NAS [Build Log]:
R5 2400G - Noctua NH-D14 - Asus Prime X370-Pro - 16gb G.Skill Aegis 3000mhz - Seasonic Focus Platinum 550W - Fractal Design R5 - 
250gb 970 Evo (OS) - 2x500gb 860 Evo (Raid0) - 6x4TB WD Red (RaidZ2)

 

Audio Gear:

Hifiman HE-400i - Kennerton Magister - Beyerdynamic DT880 250Ohm - AKG K7XX - Fostex TH-X00 - O2 Amp/DAC Combo - 
Klipsch RP280F - Klipsch RP160M - Klipsch RP440C - Yamaha RX-V479

 

Reviews and Stuff:

GTX 780 DCU2 // 8600GTS // Hifiman HE-400i // Kennerton Magister
Folding all the Proteins! // Boincerino

Useful Links:
Do you need an AMP/DAC? // Recommended Audio Gear // PSU Tier List 

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1.45V Core Voltage is high, so that is ONE of the reasons why.

Usually the motherboard can set the proper voltage; BIOS updates will have better optimizations, etc.

 

You might also need to adjust the AIO pump + fan speeds.

Set up a custom fan curve for your AIO fans, and case fans, etc.

 

What computer case / chassis are you using?

Might need to improve the overall airflow (e.g. better or more case fans, etc).


Intel Z390 Rig ( *NEW* Primary )

Intel X99 Rig (Officially Decommissioned, Dead CPU returned to Intel)

  • i7-8086K @ 5.1 GHz (still tweaking) -- i7-6800K
  • Gigabyte Z390 Aorus Master -- ASUS X99 Deluxe
  • Sapphire NITRO+ RX 5700 XT Special Edition -- 2x Sapphire NITRO R9-Fury in Crossfire
  • 32GB G.Skill TridentZ DDR4-3000 CL14 (16GB TridentZ RGB + 16GB Red/Black TridentZ)
  • SanDisk 480 GB SSD + 1TB Samsung 860 EVO + 1TB Intel 660p NVMe
  • EVGA SuperNOVA 850W P2 + Red/White CableMod Cables
  • Phanteks Enthoo Luxe Tempered Glass Edition
  • Ekwb Custom loop
  • Logitech G502 Proteus Spectrum + Corsair K70 (Red LED, anodized black, Cheery MX Browns)

Intel Z97 Rig (Secondary)

  • Intel i5-4690K 4.8 GHz
  • ASUS ROG Maximus VII Hero Z97
  • Sapphire Vapor-X HD 7950 EVGA GTX 1070 SC Black Edition ACX 3.0
  • 20 GB (8GB X 2 + 4GB X 1) Corsair Vengeance DDR3 1600 MHz
  • Corsair A50 air cooler  NZXT X61
  • Crucial MX500 1TB SSD + SanDisk Ultra II 240GB SSD + WD Caviar Black 1TB HDD + Kingston V300 120GB SSD [non-gimped version]
  • Antec New TruePower 550W EVGA G2 650W + White CableMod cables
  • Cooler Master HAF 912 White NZXT S340 Elite w/ white LED stips

AMD 990FX Rig (Decommissioned)

  • FX-8350 @ 4.8 / 4.9 GHz (given up on the 5.0 / 5.1 GHz attempt)
  • ASUS ROG Crosshair V Formula 990FX
  • 12 GB (4 GB X 3) G.Skill RipJawsX DDR3 @ 1866 MHz
  • Sapphire Vapor-X HD 7970 + Sapphire Dual-X HD 7970 in Crossfire  Sapphire NITRO R9-Fury in Crossfire *NONE*
  • Thermaltake Frio w/ Cooler Master JetFlo's in push-pull
  • Samsung 850 EVO 500GB SSD + Kingston V300 120GB SSD + WD Caviar Black 1TB HDD
  • Corsair TX850 (ver.1)
  • Cooler Master HAF 932

 

<> Electrical Engineer , B.Eng <>

<> Electronics & Computer Engineering Technologist (Diploma + Advanced Diploma) <>

<> Electronics Engineering Technician for the Canadian Department of National Defence <>

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Posted · Original PosterOP
Just now, FloRolf said:

preferable not games as no game on the planet maxes a 3950X. I need long and heavy tests. like a 30min render.

I seriously hope he didnt buy it for gaming. 

No, it was for a combo of gaming, streaming, photoshop.

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Posted · Original PosterOP
Just now, -rascal- said:

What computer case / chassis are you using?

Might need to improve the overall airflow (e.g. better or more case fans, etc).

It's the NZXT H510 Elite with a Kraken Z63

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4 minutes ago, lololohahaha008 said:

It's the NZXT H510 Elite with a Kraken Z63

 

The front airflow for the case, in stock configuration, is not the greatest...

It is quite restricted, with the giant front glass panel, and the vents/holes along the side (on JUST the front right-side, too)

Spoiler

image.png.2b677d70ab2a74a0acb223c3ab1d432a.png

 

https://www.gamersnexus.net/hwreviews/3496-nzxt-h510-elite-case-review-making-things-worse

 


Intel Z390 Rig ( *NEW* Primary )

Intel X99 Rig (Officially Decommissioned, Dead CPU returned to Intel)

  • i7-8086K @ 5.1 GHz (still tweaking) -- i7-6800K
  • Gigabyte Z390 Aorus Master -- ASUS X99 Deluxe
  • Sapphire NITRO+ RX 5700 XT Special Edition -- 2x Sapphire NITRO R9-Fury in Crossfire
  • 32GB G.Skill TridentZ DDR4-3000 CL14 (16GB TridentZ RGB + 16GB Red/Black TridentZ)
  • SanDisk 480 GB SSD + 1TB Samsung 860 EVO + 1TB Intel 660p NVMe
  • EVGA SuperNOVA 850W P2 + Red/White CableMod Cables
  • Phanteks Enthoo Luxe Tempered Glass Edition
  • Ekwb Custom loop
  • Logitech G502 Proteus Spectrum + Corsair K70 (Red LED, anodized black, Cheery MX Browns)

Intel Z97 Rig (Secondary)

  • Intel i5-4690K 4.8 GHz
  • ASUS ROG Maximus VII Hero Z97
  • Sapphire Vapor-X HD 7950 EVGA GTX 1070 SC Black Edition ACX 3.0
  • 20 GB (8GB X 2 + 4GB X 1) Corsair Vengeance DDR3 1600 MHz
  • Corsair A50 air cooler  NZXT X61
  • Crucial MX500 1TB SSD + SanDisk Ultra II 240GB SSD + WD Caviar Black 1TB HDD + Kingston V300 120GB SSD [non-gimped version]
  • Antec New TruePower 550W EVGA G2 650W + White CableMod cables
  • Cooler Master HAF 912 White NZXT S340 Elite w/ white LED stips

AMD 990FX Rig (Decommissioned)

  • FX-8350 @ 4.8 / 4.9 GHz (given up on the 5.0 / 5.1 GHz attempt)
  • ASUS ROG Crosshair V Formula 990FX
  • 12 GB (4 GB X 3) G.Skill RipJawsX DDR3 @ 1866 MHz
  • Sapphire Vapor-X HD 7970 + Sapphire Dual-X HD 7970 in Crossfire  Sapphire NITRO R9-Fury in Crossfire *NONE*
  • Thermaltake Frio w/ Cooler Master JetFlo's in push-pull
  • Samsung 850 EVO 500GB SSD + Kingston V300 120GB SSD + WD Caviar Black 1TB HDD
  • Corsair TX850 (ver.1)
  • Cooler Master HAF 932

 

<> Electrical Engineer , B.Eng <>

<> Electronics & Computer Engineering Technologist (Diploma + Advanced Diploma) <>

<> Electronics Engineering Technician for the Canadian Department of National Defence <>

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Posted · Original PosterOP
9 minutes ago, -rascal- said:

1.45V Core Voltage is high, so that is ONE of the reasons why.

Usually the motherboard can set the proper voltage; BIOS updates will have better optimizations, etc.

What voltage whould you recommend if I would like to exploit the full potential of the CPU? (I'm at 1.20V)

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Posted · Original PosterOP
Just now, -rascal- said:

The front airflow for the case, in stock configuration, is not the greatest...

It is quite restricted, with the giant front glass panel, and the vents/holes along the side (on JUST the front right-side, too)

Ah ok, I see. But my friend really liked that case so, I just let him go with it.

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9 minutes ago, lololohahaha008 said:

Do you mean something like Cinebench?

 

Cinebench only takes 2minutes to complete. That's not enough to heat the system up all the way. More like Prime95 or IBT for 30minutes. 


Gaming HTPC:

R7 1700X - Scythe Big Shuriken 3 - Asus ROG B350-i - Asus GTX 1080 Strix - 16gb G.Skill Ripjaws V 3333mhz - Silverstone SX500-LG - 500gb 960 EVO - Fractal Design Node 202 - Samsung 60KS7090 - Logitech G502 - Thrustmaster T500RS - Noblechairs Icon


Desktop PC:
R9 3900X - H100i GTX - Asus Prime X570 Pro - EVGA RTX2060KO - 32gb LPX 3200mhz - EVGA 750G2 - 250gb 970 Evo - 6TB WD My Book Duo (Reds) - Inwin 103 White - Dell U3415W - Qpad MK-85 Brown - Logitech MX518 Legendary - Blue Yeti Platinum - Noblechairs Icon 


Boss-NAS [Build Log]:
R5 2400G - Noctua NH-D14 - Asus Prime X370-Pro - 16gb G.Skill Aegis 3000mhz - Seasonic Focus Platinum 550W - Fractal Design R5 - 
250gb 970 Evo (OS) - 2x500gb 860 Evo (Raid0) - 6x4TB WD Red (RaidZ2)

 

Audio Gear:

Hifiman HE-400i - Kennerton Magister - Beyerdynamic DT880 250Ohm - AKG K7XX - Fostex TH-X00 - O2 Amp/DAC Combo - 
Klipsch RP280F - Klipsch RP160M - Klipsch RP440C - Yamaha RX-V479

 

Reviews and Stuff:

GTX 780 DCU2 // 8600GTS // Hifiman HE-400i // Kennerton Magister
Folding all the Proteins! // Boincerino

Useful Links:
Do you need an AMP/DAC? // Recommended Audio Gear // PSU Tier List 

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Posted · Original PosterOP
1 hour ago, FloRolf said:

More like Prime95 or IBT for 30minutes. 

So I ask my friend to do Prime95 for 30 minute.

 

The first time, for some reason I don't know, the CPU was running at 3.5GHz and no mode was selected (not Creator, not Gaming, not Profile 1 nor 2). The temps are good, around 50-60ºC.

 

The 2nd time, I selected Creator Mode with Default OC and left the max voltage at 1.20V (I forgot to put back to default). The temps were higher but not astronomically high. I saw between 60-70ºC. BUT, the CPU was clocked at 3.6GHz when testing, even with Default OC selected (when Default OC was selected, I see a clock of 4.2GHz in RM). Before the test, CPU was at 4.2GHz and 60ºC, idle. (see pictures)

 

)IMG_7526.thumb.PNG.d9f1f18dc9f4dfe13b921d61e12b3cb3.PNG

 

IMG_7527.thumb.PNG.8ccd44fd51f8fb4dfacdc514059f4a2a.PNG

 

 

Really weird behaviour. Did I miss something? It's my first time with Ryzen so I'm not really familiar.

 

Note that the BIOS is not updated yet (because I can't be physically at my friend's house).

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3 hours ago, lololohahaha008 said:

So I ask my friend to do Prime95 for 30 minute.

 

The first time, for some reason I don't know, the CPU was running at 3.5GHz and no mode was selected (not Creator, not Gaming, not Profile 1 nor 2). The temps are good, around 50-60ºC.

 

The 2nd time, I selected Creator Mode with Default OC and left the max voltage at 1.20V (I forgot to put back to default). The temps were higher but not astronomically high. I saw between 60-70ºC. BUT, the CPU was clocked at 3.6GHz when testing, even with Default OC selected (when Default OC was selected, I see a clock of 4.2GHz in RM). Before the test, CPU was at 4.2GHz and 60ºC, idle. (see pictures)

 

Really weird behaviour. Did I miss something? It's my first time with Ryzen so I'm not really familiar.

 

Note that the BIOS is not updated yet (because I can't be physically at my friend's house).

 

CPU boosting up to 4.2 GHz when the Processor is not stressed.

There is enough thermal and power headroom for it to do so.

You need to consider the Temperature / PPT / TDC / EDC headroom.

 

Once Prime95 is running, the 4.2 GHz speed can no longer be sustained, while keeping the CPU within power specifications.

It then downclocks the CPU to 3.5 GHz / 3.6 GHz

As you can see in Ryzen Master, when Prime95 is running, your TDC is at it's limit -- 100%.

 

Ryzen 3950X is advertised as 3.5 GHz base, and Turbo Boost UP TO 4.7 GHz.

How Turbo Boost works now is a bit more complex...but generally...something in the lines of this...

  • Up to 4.7 GHz with only 1 or 2 cores is fully loaded (14/16 cores are idle)
  • 4.4 GHz ~ 4.6 GHz when 3 ~ 4 cores are loaded (remaining 12/16 cores idle)
  • 4.2 GHz when 4 ~ 6 cores are used (remaining 10/16 cores are idle)
  • ....
  • ....
  • 3.5 GHz when All 16 cores are loaded 

 

If you open up CPU-Z, go into the About tab, and click Save Report (.TXT), you can then open up that file.

Scroll down in that .TXT file, and you'll see the "general" P-States listed.

 

For an example, my i7-8086K is listed as 4.0 GHz with Turbo Boost up to 5.0 GHz.

In the .TXT file...

image.png.e070156efc59791cf8174800662ad0c0.png


Intel Z390 Rig ( *NEW* Primary )

Intel X99 Rig (Officially Decommissioned, Dead CPU returned to Intel)

  • i7-8086K @ 5.1 GHz (still tweaking) -- i7-6800K
  • Gigabyte Z390 Aorus Master -- ASUS X99 Deluxe
  • Sapphire NITRO+ RX 5700 XT Special Edition -- 2x Sapphire NITRO R9-Fury in Crossfire
  • 32GB G.Skill TridentZ DDR4-3000 CL14 (16GB TridentZ RGB + 16GB Red/Black TridentZ)
  • SanDisk 480 GB SSD + 1TB Samsung 860 EVO + 1TB Intel 660p NVMe
  • EVGA SuperNOVA 850W P2 + Red/White CableMod Cables
  • Phanteks Enthoo Luxe Tempered Glass Edition
  • Ekwb Custom loop
  • Logitech G502 Proteus Spectrum + Corsair K70 (Red LED, anodized black, Cheery MX Browns)

Intel Z97 Rig (Secondary)

  • Intel i5-4690K 4.8 GHz
  • ASUS ROG Maximus VII Hero Z97
  • Sapphire Vapor-X HD 7950 EVGA GTX 1070 SC Black Edition ACX 3.0
  • 20 GB (8GB X 2 + 4GB X 1) Corsair Vengeance DDR3 1600 MHz
  • Corsair A50 air cooler  NZXT X61
  • Crucial MX500 1TB SSD + SanDisk Ultra II 240GB SSD + WD Caviar Black 1TB HDD + Kingston V300 120GB SSD [non-gimped version]
  • Antec New TruePower 550W EVGA G2 650W + White CableMod cables
  • Cooler Master HAF 912 White NZXT S340 Elite w/ white LED stips

AMD 990FX Rig (Decommissioned)

  • FX-8350 @ 4.8 / 4.9 GHz (given up on the 5.0 / 5.1 GHz attempt)
  • ASUS ROG Crosshair V Formula 990FX
  • 12 GB (4 GB X 3) G.Skill RipJawsX DDR3 @ 1866 MHz
  • Sapphire Vapor-X HD 7970 + Sapphire Dual-X HD 7970 in Crossfire  Sapphire NITRO R9-Fury in Crossfire *NONE*
  • Thermaltake Frio w/ Cooler Master JetFlo's in push-pull
  • Samsung 850 EVO 500GB SSD + Kingston V300 120GB SSD + WD Caviar Black 1TB HDD
  • Corsair TX850 (ver.1)
  • Cooler Master HAF 932

 

<> Electrical Engineer , B.Eng <>

<> Electronics & Computer Engineering Technologist (Diploma + Advanced Diploma) <>

<> Electronics Engineering Technician for the Canadian Department of National Defence <>

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