F5F Stay Refreshed Hardware Desktop Performance issues under maximum demand Speed fluctuations observed when system operates at full capacity

Performance issues under maximum demand Speed fluctuations observed when system operates at full capacity

Performance issues under maximum demand Speed fluctuations observed when system operates at full capacity

P
PointlessBear
Junior Member
7
12-31-2019, 09:24 AM
#1
Hello, I just set up a 3900x on my MSI b450-m pro vdh board and observed that during heavy use the processor drops to around 3.9-4.0 GHz, which is about 600 MHz below its turbo speed. The CPU stays well below 82°C. I’m unsure if the VRM is overheating or if the chip is throttling, since most reports suggest my board’s VRM can handle around 105 watts compared to roughly 200 watts needed when the 3900x is fully turboing or overclocked. I’m considering adding a cooling solution for the VRMs but want to confirm whether the issue lies with the VRM or another factor.
P
PointlessBear
12-31-2019, 09:24 AM #1

Hello, I just set up a 3900x on my MSI b450-m pro vdh board and observed that during heavy use the processor drops to around 3.9-4.0 GHz, which is about 600 MHz below its turbo speed. The CPU stays well below 82°C. I’m unsure if the VRM is overheating or if the chip is throttling, since most reports suggest my board’s VRM can handle around 105 watts compared to roughly 200 watts needed when the 3900x is fully turboing or overclocked. I’m considering adding a cooling solution for the VRMs but want to confirm whether the issue lies with the VRM or another factor.

D
Dominik_SK
Member
238
12-31-2019, 10:41 AM
#2
Turbo speed is designed for individual core enhancements, not for handling multiple threads simultaneously. That’s the intended functionality.
D
Dominik_SK
12-31-2019, 10:41 AM #2

Turbo speed is designed for individual core enhancements, not for handling multiple threads simultaneously. That’s the intended functionality.

M
Mottcru2
Junior Member
48
01-03-2020, 03:44 PM
#3
Is this really the case? I wasn't aware of it, thank you.
M
Mottcru2
01-03-2020, 03:44 PM #3

Is this really the case? I wasn't aware of it, thank you.

F
FreshPrincess
Junior Member
23
01-05-2020, 11:35 AM
#4
The only certainty under heavy parallel processing is the fixed clock speed. The processor continues to increase its performance significantly above that baseline. Power usage is also likely constrained, since boosting further would risk hitting thermal or voltage limits.
F
FreshPrincess
01-05-2020, 11:35 AM #4

The only certainty under heavy parallel processing is the fixed clock speed. The processor continues to increase its performance significantly above that baseline. Power usage is also likely constrained, since boosting further would risk hitting thermal or voltage limits.

P
pop2213
Member
61
01-07-2020, 10:38 AM
#5
However, your low-quality VRM might restrict the chip's performance even more. Check the VRM temperatures and observe clock drops during high loads (such as 90°C+).
P
pop2213
01-07-2020, 10:38 AM #5

However, your low-quality VRM might restrict the chip's performance even more. Check the VRM temperatures and observe clock drops during high loads (such as 90°C+).

K
kingpin73
Member
80
01-08-2020, 01:44 AM
#6
Yes, popular VRM temperature monitoring tools include Thermo Probe, OnboardPro, and various open-source solutions like OpenTherm or custom firmware-based systems.
K
kingpin73
01-08-2020, 01:44 AM #6

Yes, popular VRM temperature monitoring tools include Thermo Probe, OnboardPro, and various open-source solutions like OpenTherm or custom firmware-based systems.

D
DoodleDad
Member
131
01-08-2020, 03:30 AM
#7
Download HWiNFO64 free on Windows or DOS. Installer and portable version available.
D
DoodleDad
01-08-2020, 03:30 AM #7

Download HWiNFO64 free on Windows or DOS. Installer and portable version available.