R9 9900x 100c during OCCT Power Test

[NiteOwl_OvO]

I just completed my new build. Did a little gaming. Went to bed. Got constant memory error messages when I woke up the system the next morning. Cold booted and everything worked fine. I decided to do a few stress tests to try to identify any issues. Ran OCCT CPU + RAM test for 1 hour. No problem. Ran Memory load test. No problem. Let it cool down and ran Power Stress test. I stopped the test 15 minutes in. The CPU hit the thermal limit of 100c. The air coming out of the AIO was just warm. The radiator itself was just warm. During the test, the CPU load was 100% and GPU load was 99%. On the prior CPU + RAM test the CPU spiked up to 93c and averaged 85c. Could this be a heat transfer issue at the CPU/AIO pump or something else?

MSI MAG B650 TOMAHAWK WIFI
Microsoft Windows 11 Pro 64-bit Ver.2009 (OS build 26100.4061)
BIOS Version: 1.M3
BIOS Release Date: 03/05/2025
AMD Ryzen 9 9900X 12-Core Processor
2 x 32 GB DDR5-4800, G Skill Intl F5-6000J2836G32G
AMD Radeon(TM) Graphics (Integrated)
AMD Radeon RX 9070 XT Vertical Mounted
Samsung SSD 990 PRO with Heatsink 2TB
EVGA 1300G+ PSU
Hyte Y70 case
Arctic Liquid Freezer III Pro 360 ARGB AIO
6 x Arctic P12 PMW ARGB fans

1 x Arctic P14 PMW ARGB fan

[NorKris]

7 minutes ago, NiteOwl_OvO said:

I just completed my new build. Did a little gaming. Went to bed. Got constant memory error messages when I woke up the system the next morning. Cold booted and everything worked fine. I decided to do a few stress tests to try to identify any issues. Ran OCCT CPU + RAM test for 1 hour. No problem. Ran Memory load test. No problem. Let it cool down and ran Power Stress test. I stopped the test 15 minutes in. The CPU hit the thermal limit of 100c. The air coming out of the AIO was just warm. The radiator itself was just warm. During the test, the CPU load was 100% and GPU load was 99%. On the prior CPU + RAM test the CPU spiked up to 93c and averaged 85c. Could this be a heat transfer issue at the CPU/AIO pump or something else?

MSI MAG B650 TOMAHAWK WIFI
Microsoft Windows 11 Pro 64-bit Ver.2009 (OS build 26100.4061)
BIOS Version: 1.M3
BIOS Release Date: 03/05/2025
AMD Ryzen 9 9900X 12-Core Processor
2 x 32 GB DDR5-4800, G Skill Intl F5-6000J2836G32G
AMD Radeon(TM) Graphics (Integrated)
AMD Radeon RX 9070 XT Vertical Mounted
Samsung SSD 990 PRO with Heatsink 2TB
EVGA 1300G+ PSU
Hyte Y70 case
Arctic Liquid Freezer III Pro 360 ARGB AIO
6 x Arctic P12 PMW ARGB fans

1 x Arctic P14 PMW ARGB fan

 

AIO as  side intake?  also  do u have  cpu watt picture?

[NiteOwl_OvO]

The AIO is on the top with fans blowing up and out. I have X3D features enabled in the BIOS. It limits the CPU to 6 cores and reportedly provided better gaming performance.

[OddOod]

Welcome to the forums!
 

14 minutes ago, NiteOwl_OvO said:

6 x Arctic P12 PMW ARGB fans

1 x Arctic P14 PMW ARGB fan

What do your fan curves look like? These should top out at 17-1800RPM
Also, pull the AIO and check the paste spread looks good. 

[NorKris]

Just now, NiteOwl_OvO said:

The AIO is on the top with fans blowing up and out. I have X3D features enabled in the BIOS. It limits the CPU to 6 cores and reportedly provided better gaming performance.
 

ok. keep in mind that top exhaust is  "user inflicted higher cpu temps" 

[NiteOwl_OvO]

Just now, NorKris said:

ok. keep in mind that top exhaust is  "user inflicted higher cpu temps" 

The AIO is barely warm. Nowhere near 90c.

[NorKris]

Just now, NiteOwl_OvO said:

The AIO is barely warm. Nowhere near 90c.

not sure what u mean by that. most AIOs can only messure water temp. urs cant (i think)

 

but installing a radiator as exhaust is   making ur cpu temp higher, not recommended 

[NiteOwl_OvO]

6 minutes ago, OddOod said:

Welcome to the forums!
 

What do your fan curves look like? These should top out at 17-1800RPM
Also, pull the AIO and check the paste spread looks good. 

These were the fan speeds during the test.

[NiteOwl_OvO]

2 minutes ago, NorKris said:

not sure what u mean by that. most AIOs can only messure water temp. urs cant (i think)

 

but installing a radiator as exhaust is   making ur cpu temp higher, not recommended 

My hand says the AIO is barely warm. Like 45c.

The issue is that the AIO would be "cooled" by warm air from inside the case. I have 3 fans on the bottom and 3 fans on the side all blowing cool air in. A 140mm fan on the rear is blowing out and the 3 fans on the AIO radiator are also blowing out. The air coming out of the AIO radiator is less than 50c. Half the temperature of the CPU. It seems like the AIO is not getting heat away from the CPU efficiently.

[PDifolco]

27 minutes ago, NiteOwl_OvO said:

I just completed my new build. Did a little gaming. Went to bed. Got constant memory error messages when I woke up the system the next morning. Cold booted and everything worked fine. I decided to do a few stress tests to try to identify any issues. Ran OCCT CPU + RAM test for 1 hour. No problem. Ran Memory load test. No problem. Let it cool down and ran Power Stress test. I stopped the test 15 minutes in. The CPU hit the thermal limit of 100c. The air coming out of the AIO was just warm. The radiator itself was just warm. During the test, the CPU load was 100% and GPU load was 99%. On the prior CPU + RAM test the CPU spiked up to 93c and averaged 85c. Could this be a heat transfer issue at the CPU/AIO pump or something else?

MSI MAG B650 TOMAHAWK WIFI
Microsoft Windows 11 Pro 64-bit Ver.2009 (OS build 26100.4061)
BIOS Version: 1.M3
BIOS Release Date: 03/05/2025
AMD Ryzen 9 9900X 12-Core Processor
2 x 32 GB DDR5-4800, G Skill Intl F5-6000J2836G32G
AMD Radeon(TM) Graphics (Integrated)
AMD Radeon RX 9070 XT Vertical Mounted
Samsung SSD 990 PRO with Heatsink 2TB
EVGA 1300G+ PSU
Hyte Y70 case
Arctic Liquid Freezer III Pro 360 ARGB AIO
6 x Arctic P12 PMW ARGB fans

1 x Arctic P14 PMW ARGB fan

Definitely too high CPU temps, either the cooler doesn't work properly or the airflow is messed up (but don't seem so as the GPU temps are fine)

How did you plug and control the LF3 ? The pump speed is low, at high load it should run at 4200rpm

[NorKris]

Just now, NiteOwl_OvO said:

My hand says the AIO is barely warm. Like 45c.

The issue is that the AIO would be "cooled" by warm air from inside the case. I have 3 fans on the bottom and 3 fans on the side all blowing cool air in. A 140mm fan on the rear is blowing out and the 3 fans on the AIO radiator are also blowing out. The air coming out of the AIO radiator is less than 50c. Half the temperature of the CPU. It seems like the AIO is not getting heat away from the CPU efficiently.

45c is veeery hot.. anyways  there is no test showing exhaust as the best or second best option 

[NiteOwl_OvO]

Just now, PDifolco said:

Definitely too high CPU temps, either the cooler doesn't work properly or the airflow is messed up (but don't seem so as the GPU temps are fine)

How did you plug and control the LF3 ? The pump speed is low, at high load it should run at 4200rpm

The LF3 is plugged into the motherboard CPU and PUMPFAN headers. The BIOS default settings are in place for fan/pump control.

[NiteOwl_OvO]

2 minutes ago, NorKris said:

45c is veeery hot.. anyways  there is no test showing exhaust as the best or second best option 

45c = 113F 
You can stick your bare hand in 113F water and it will feel luke warm.

[PDifolco]

1 minute ago, NiteOwl_OvO said:

The LF3 is plugged into the motherboard CPU and PUMPFAN headers. The BIOS default settings are in place for fan/pump control.

But which connector is plugged in which header ? the LF3 has 3 connectors, one for the pump, one for the fans and a third for the VRM fan

[NorKris]

2 minutes ago, NiteOwl_OvO said:

45c = 113F 
You can stick your bare hand in 113F water and it will feel luke warm.

not helping ur case  xD   "measured by hand so my installation is correct", thats a first 

 

max pump speed is 2800, so ur over spec thats good. 

[NiteOwl_OvO]

17 minutes ago, PDifolco said:

But which connector is plugged in which header ? the LF3 has 3 connectors, one for the pump, one for the fans and a third for the VRM fan

Pump is on Pump_Fan, VRM is on Sys_Fan, AIO Fans are on CPU_Fan.

[freeagent]

48 minutes ago, NorKris said:

ok. keep in mind that top exhaust is  "user inflicted higher cpu temps" 

That would entirely depend in how much intake you have in the case. I am running mine as top exhaust right now, just the 3 stock fans on it.

 

[PDifolco]

17 minutes ago, NiteOwl_OvO said:

Pump is on Pump_Fan, VRM is on Sys_Fan, AIO Fans are on CPU_Fan.

Ok then update the Pump fan curve and set it up to 100% at full load, may gain a few C

But I suspect the AIO block isn't seated correctly, maybe some issue with the offset mount or pressure, pls check it or post a pic

[NiteOwl_OvO]

7 minutes ago, PDifolco said:

Ok then update the Pump fan curve and set it up to 100% at full load, may gain a few C

But I suspect the AIO block isn't seated correctly, maybe some issue with the offset mount or pressure, pls check it or post a pic

I re-ran the same test without changing anything with the same results. I took temp readings from the AIO radiator with a laser thermometer. Idle temp was 28c and it hit 31c max.

[freeagent]

That means CPU is transferring very little to the AIO. Something is wrong somewhere.

[NiteOwl_OvO]

7 minutes ago, freeagent said:

That means CPU is transferring very little to the AIO. Something is wrong somewhere.

I removed the AIO and examined the paste distribution. It was fine. Slightly more on the upper right corner, but some paste thinly spread across the entire surface of both CPU and AIO copper plate. I respread the paste a bit and reinstalled. I re-ran the test. This time temps quickly rose to 97c within 2 minutes and stayed there for the remainder of the 15 minutes I let the test run. Previously, temps started around 88c and fluctuated wildly between 88c and 96c, then started to go up about 8 minutes in. AIO radiator temps remained at 31c, as before. Checking BIOS pump settings.

[NiteOwl_OvO]

1 hour ago, NiteOwl_OvO said:

I removed the AIO and examined the paste distribution. It was fine. Slightly more on the upper right corner, but some paste thinly spread across the entire surface of both CPU and AIO copper plate. I respread the paste a bit and reinstalled. I re-ran the test. This time temps quickly rose to 97c within 2 minutes and stayed there for the remainder of the 15 minutes I let the test run. Previously, temps started around 88c and fluctuated wildly between 88c and 96c, then started to go up about 8 minutes in. AIO radiator temps remained at 31c, as before. Checking BIOS pump settings.

I enabled Smart Fan mode on all fans and the pump. I set the fans and pump to spin up earlier and to hit 100% at temps above 72c. I re-ran the test. There was no change. CPU temp 97c and AIO radiator temp 31c.

[freeagent]

For mine to get that hot, I need to be over 245w.