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AI Suite Temperature readings

AI Suite Temperature readings

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TorcikPL
Member
177
07-11-2016, 06:42 AM
#1
I successfully increased my i5 4690k to [email protected] volts using an NH-D15 on an Asus Z97-Pro Gamer motherboard. For stress testing, I used AIDA64, Prime95, and LinX, and everything worked without issues. The problem arises when I run benchmarks: temperatures measured between 60-65°C according to HWmonitor, Speedfan, and MSI afterburner. That’s quite high, but during stress tests with AI Suite I noticed the CPU temps dropping to 35-40°C. This discrepancy is surprising, especially since I modified the fan curve manually. I’m curious why AI Suite shows such a difference. Let me know if you have any insights. Feel free to ask for more details.
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TorcikPL
07-11-2016, 06:42 AM #1

I successfully increased my i5 4690k to [email protected] volts using an NH-D15 on an Asus Z97-Pro Gamer motherboard. For stress testing, I used AIDA64, Prime95, and LinX, and everything worked without issues. The problem arises when I run benchmarks: temperatures measured between 60-65°C according to HWmonitor, Speedfan, and MSI afterburner. That’s quite high, but during stress tests with AI Suite I noticed the CPU temps dropping to 35-40°C. This discrepancy is surprising, especially since I modified the fan curve manually. I’m curious why AI Suite shows such a difference. Let me know if you have any insights. Feel free to ask for more details.

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iTsMrLuisMC_
Member
224
07-11-2016, 06:50 AM
#2
The simple method to verify accurate temperature readings and their origin is to restart the system and access the BIOS settings on the motherboard. Allow it to run in Idle mode for several minutes, observing the BIOS display of the CPU temperature. After a short while, close the BIOS and launch Windows. Use the ASUS AI Center interface, keeping the system idle for the same duration while monitoring the CPU temperature without any active applications or background processes. The reading should fluctuate within 6 to 8 degrees Celsius. Since this is only running Windows, it operates independently. I recommend trusting the AI suite’s readings. Note: Two aspects on Intel boards are tracked. One is the internal CPU thermal sensor embedded in the die, and the other is the external temperature of the CPU socket, typically located on the motherboard’s back side near the CPU center. This explains the slight variation between 20°C measurements from different monitoring tools.
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iTsMrLuisMC_
07-11-2016, 06:50 AM #2

The simple method to verify accurate temperature readings and their origin is to restart the system and access the BIOS settings on the motherboard. Allow it to run in Idle mode for several minutes, observing the BIOS display of the CPU temperature. After a short while, close the BIOS and launch Windows. Use the ASUS AI Center interface, keeping the system idle for the same duration while monitoring the CPU temperature without any active applications or background processes. The reading should fluctuate within 6 to 8 degrees Celsius. Since this is only running Windows, it operates independently. I recommend trusting the AI suite’s readings. Note: Two aspects on Intel boards are tracked. One is the internal CPU thermal sensor embedded in the die, and the other is the external temperature of the CPU socket, typically located on the motherboard’s back side near the CPU center. This explains the slight variation between 20°C measurements from different monitoring tools.

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147
07-17-2016, 05:53 PM
#3
Hey everyone, Check out the Sticky near the top of the CPU Forum—it has some useful info: Intel Temperature Guide - CT
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TheBlueSkill3r
07-17-2016, 05:53 PM #3

Hey everyone, Check out the Sticky near the top of the CPU Forum—it has some useful info: Intel Temperature Guide - CT

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emmylee33
Senior Member
710
07-17-2016, 10:18 PM
#4
The simple method to verify accurate temperature readings and their source is to turn on the system and enter the motherboard BIOS settings. Allow it to run in Idle mode for several minutes and observe the BIOS display of the CPU temperature. After a short while, shut down the BIOS and restart the computer. Then launch ASUS AI Center and keep the system idle for the same duration, monitoring only the CPU temperature without any active applications or background processes. The reading should fluctuate within approximately 6 to 8 degrees Celsius. Since it is just Windows running, this variation is normal. I recommend trusting the AI suite’s readings.

NB: Two aspects on Intel boards are tracked:
1. The internal thermal sensor of the CPU die.
2. The ambient temperature of the CPU socket, which is typically located on the back side of the motherboard near the CPU center.

You need to identify which program is reading each sensor—either the built-in one inside the CPU or the external one on the board. This explains the 20°C discrepancy between different monitoring tools.

Yaqinhasan.

It indicates a temperature around 31-33°C, while the AI suite sometimes shows lower values, which seems contradictory unless you consider it inaccurate. I also observed that Fan Expert 3 (the fan control feature) displays core temperature or something similar during Prime95 testing, where temperatures reach about 60°C. The fan speed then matches that reading rather than the low 30°C shown by the AI suite. If this software sends different temperatures to the fan and to the user, it’s quite confusing.
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emmylee33
07-17-2016, 10:18 PM #4

The simple method to verify accurate temperature readings and their source is to turn on the system and enter the motherboard BIOS settings. Allow it to run in Idle mode for several minutes and observe the BIOS display of the CPU temperature. After a short while, shut down the BIOS and restart the computer. Then launch ASUS AI Center and keep the system idle for the same duration, monitoring only the CPU temperature without any active applications or background processes. The reading should fluctuate within approximately 6 to 8 degrees Celsius. Since it is just Windows running, this variation is normal. I recommend trusting the AI suite’s readings.

NB: Two aspects on Intel boards are tracked:
1. The internal thermal sensor of the CPU die.
2. The ambient temperature of the CPU socket, which is typically located on the back side of the motherboard near the CPU center.

You need to identify which program is reading each sensor—either the built-in one inside the CPU or the external one on the board. This explains the 20°C discrepancy between different monitoring tools.

Yaqinhasan.

It indicates a temperature around 31-33°C, while the AI suite sometimes shows lower values, which seems contradictory unless you consider it inaccurate. I also observed that Fan Expert 3 (the fan control feature) displays core temperature or something similar during Prime95 testing, where temperatures reach about 60°C. The fan speed then matches that reading rather than the low 30°C shown by the AI suite. If this software sends different temperatures to the fan and to the user, it’s quite confusing.

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Sheylizs
Member
81
07-18-2016, 12:16 AM
#5
CompuTronix: Hey everyone, Check out this Sticky near the top of the CPU Forum: Intel Temperature Guide - CT I get the various CPU temperature measurement points (I use HWmonitor and looked into them beforehand). But I’m puzzled why Fan expert 3 (the built-in fan control) matches the core temperature reading, while the AI suite shows a completely random value—usually around 25-30°C off the actual core temp.
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Sheylizs
07-18-2016, 12:16 AM #5

CompuTronix: Hey everyone, Check out this Sticky near the top of the CPU Forum: Intel Temperature Guide - CT I get the various CPU temperature measurement points (I use HWmonitor and looked into them beforehand). But I’m puzzled why Fan expert 3 (the built-in fan control) matches the core temperature reading, while the AI suite shows a completely random value—usually around 25-30°C off the actual core temp.

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ash_n_brad
Posting Freak
778
07-18-2016, 07:54 AM
#6
The AI Suite tends to be unreliable and may show incorrect readings for sensors like PCH or VRM, labeling them as "CPU" temperatures. This can lead to confusion. The core temperatures shown in "Real Temp" and "Core Temp" are generally reliable and can help confirm the accuracy of core temperatures in other tools such as SpeedFan and HW Monitor.
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ash_n_brad
07-18-2016, 07:54 AM #6

The AI Suite tends to be unreliable and may show incorrect readings for sensors like PCH or VRM, labeling them as "CPU" temperatures. This can lead to confusion. The core temperatures shown in "Real Temp" and "Core Temp" are generally reliable and can help confirm the accuracy of core temperatures in other tools such as SpeedFan and HW Monitor.

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beutfulsk8r
Junior Member
47
07-20-2016, 05:46 AM
#7
CompuTronix :
yaqinhasan,
AI Suite can sometimes give incorrect readings and might show the temperature of other sensors like PCH or VRM instead of the actual CPU temperature. This can be misleading, so it’s best not to rely on it. The Core temperatures listed in "Real Temp" and "Core Temp" are generally reliable and can help confirm the accuracy of Core temperatures in tools such as SpeedFan and HW Monitor.

Shaun o,
Respectfully, your understanding seems incomplete. Let's clarify this for everyone here, including forum members and readers.

Firstly, BIOS isn't a precise way to measure idle temperature because it doesn’t include power-saving features. When you're idle in Windows, the processor’s core temperature is at its minimum possible level—especially if the power consumption (in watts) is under 2 Watts for an i5 4690K. Idle temps are influenced by BIOS settings, background processes, and room temperature.

Secondly, with Intel processors using LGA 1366, the company stopped including a single analog "CPU" temperature sensor in the package. Instead, each core has its own digital thermal sensors (DTS), which provide the actual Core temperature.

Thirdly, the term "Socket" temperature is specific to AMD systems. Intel doesn’t use a socket temperature measurement, and there hasn’t been a socket-based thermocouple sensor on Intel boards for over ten years.
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beutfulsk8r
07-20-2016, 05:46 AM #7

CompuTronix :
yaqinhasan,
AI Suite can sometimes give incorrect readings and might show the temperature of other sensors like PCH or VRM instead of the actual CPU temperature. This can be misleading, so it’s best not to rely on it. The Core temperatures listed in "Real Temp" and "Core Temp" are generally reliable and can help confirm the accuracy of Core temperatures in tools such as SpeedFan and HW Monitor.

Shaun o,
Respectfully, your understanding seems incomplete. Let's clarify this for everyone here, including forum members and readers.

Firstly, BIOS isn't a precise way to measure idle temperature because it doesn’t include power-saving features. When you're idle in Windows, the processor’s core temperature is at its minimum possible level—especially if the power consumption (in watts) is under 2 Watts for an i5 4690K. Idle temps are influenced by BIOS settings, background processes, and room temperature.

Secondly, with Intel processors using LGA 1366, the company stopped including a single analog "CPU" temperature sensor in the package. Instead, each core has its own digital thermal sensors (DTS), which provide the actual Core temperature.

Thirdly, the term "Socket" temperature is specific to AMD systems. Intel doesn’t use a socket temperature measurement, and there hasn’t been a socket-based thermocouple sensor on Intel boards for over ten years.