F5F Stay Refreshed Hardware Desktop Thermal throttling issue with the 7700x and NHD15S chipset, despite a hot CPU and adequate heatsink.

Thermal throttling issue with the 7700x and NHD15S chipset, despite a hot CPU and adequate heatsink.

Thermal throttling issue with the 7700x and NHD15S chipset, despite a hot CPU and adequate heatsink.

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KryFTW
Junior Member
37
10-28-2022, 08:14 PM
#1
Completed fresh installation, tested with Cinebench. CPU throttles at 95°C but only reaches 5.1GHz (max boost is 5.4). Base temperature seems normal, but finger-based checks hinted at possible old thermal paste or a plastic sheet issue. I disassembled the heatsink, replaced it, and reattached the CPU without any plastic layers. After applying new thermal paste from Noctua and stress testing, throttling stopped. Could be a faulty CPU or improper IHS mounting? The setup details are AMD 7700X NH-D15S, ASUS X670E Plus, BIOS v0809, Samsung Evo 980, GSKILL DDR5-6000, 16GB x2.
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KryFTW
10-28-2022, 08:14 PM #1

Completed fresh installation, tested with Cinebench. CPU throttles at 95°C but only reaches 5.1GHz (max boost is 5.4). Base temperature seems normal, but finger-based checks hinted at possible old thermal paste or a plastic sheet issue. I disassembled the heatsink, replaced it, and reattached the CPU without any plastic layers. After applying new thermal paste from Noctua and stress testing, throttling stopped. Could be a faulty CPU or improper IHS mounting? The setup details are AMD 7700X NH-D15S, ASUS X670E Plus, BIOS v0809, Samsung Evo 980, GSKILL DDR5-6000, 16GB x2.

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NRedemption
Member
67
11-04-2022, 08:21 PM
#2
The "finger" measurement isn't reliable. Past Ryzen CPU models focused on pushing performance limits—whether it's heat, power draw, or current. The chip was built to run continuously at up to 95°C, maintaining high output until it reaches 96°C before slowing down. Once it drops to 95°C or below, it ramps back up. The top speed for a single core is around 5.4 GHz under heavy load. If you need lower temps, try enabling ECO Mode in BIOS, lowering power and current targets, allowing the CPU to undervolt and reduce boost frequency.
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NRedemption
11-04-2022, 08:21 PM #2

The "finger" measurement isn't reliable. Past Ryzen CPU models focused on pushing performance limits—whether it's heat, power draw, or current. The chip was built to run continuously at up to 95°C, maintaining high output until it reaches 96°C before slowing down. Once it drops to 95°C or below, it ramps back up. The top speed for a single core is around 5.4 GHz under heavy load. If you need lower temps, try enabling ECO Mode in BIOS, lowering power and current targets, allowing the CPU to undervolt and reduce boost frequency.

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Peinnoob
Member
52
11-16-2022, 02:16 AM
#3
I'll bring back a thermocouple reading for the heatsink base, though I remain worried about the temperature difference between the CPU and the base. It needs to be noticeable when you touch it.
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Peinnoob
11-16-2022, 02:16 AM #3

I'll bring back a thermocouple reading for the heatsink base, though I remain worried about the temperature difference between the CPU and the base. It needs to be noticeable when you touch it.

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Metoritic
Junior Member
15
11-21-2022, 12:45 AM
#4
Everything seems to be running smoothly as expected. Are you configuring the cores and aiming for the full-core speed? If you're looking to lower the frequency from 95C for better high-frequency performance, consider adjusting the temperature cap or using undervolting in Curve Optimizer. I'm cooling my 7900X with an AK620 and applying presets that set a 85°C and -40mV limit via Curve Optimizer. The boosts are outperforming the standard score in Cinebench R23. (It could potentially go even higher, but I'm currently using AGESA 1.0.0.4 which enforces a 5.5GHz cap—hope that gets fixed in upcoming BIOS updates)
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Metoritic
11-21-2022, 12:45 AM #4

Everything seems to be running smoothly as expected. Are you configuring the cores and aiming for the full-core speed? If you're looking to lower the frequency from 95C for better high-frequency performance, consider adjusting the temperature cap or using undervolting in Curve Optimizer. I'm cooling my 7900X with an AK620 and applying presets that set a 85°C and -40mV limit via Curve Optimizer. The boosts are outperforming the standard score in Cinebench R23. (It could potentially go even higher, but I'm currently using AGESA 1.0.0.4 which enforces a 5.5GHz cap—hope that gets fixed in upcoming BIOS updates)

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XIIIgameboy
Junior Member
14
11-24-2022, 03:46 AM
#5
Thermocouple connected, bottom side of the heatsink base reads 31°C whereas the CPU sits at 95°C with 120W output. This seems inconsistent—shouldn’t it be higher? The 64°C temperature difference from the package to the base appears unusual. Is the 7700x IHS model really struggling to dissipate heat from those small CCDs?
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XIIIgameboy
11-24-2022, 03:46 AM #5

Thermocouple connected, bottom side of the heatsink base reads 31°C whereas the CPU sits at 95°C with 120W output. This seems inconsistent—shouldn’t it be higher? The 64°C temperature difference from the package to the base appears unusual. Is the 7700x IHS model really struggling to dissipate heat from those small CCDs?

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UNIKAT
Junior Member
31
11-25-2022, 06:43 PM
#6
It seems Zen4 functions correctly for the 95c target.
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UNIKAT
11-25-2022, 06:43 PM #6

It seems Zen4 functions correctly for the 95c target.

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Vale_001
Junior Member
5
12-03-2022, 04:38 PM
#7
You're trying to solve a situation that doesn't really exist, and it's designed this way. It's curious how CPUs with compact designs still work with older cooling solutions like AM4. The IHS is actually thicker than you think.
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Vale_001
12-03-2022, 04:38 PM #7

You're trying to solve a situation that doesn't really exist, and it's designed this way. It's curious how CPUs with compact designs still work with older cooling solutions like AM4. The IHS is actually thicker than you think.

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Hyrosaki
Junior Member
32
12-06-2022, 09:31 PM
#8
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Hyrosaki
12-06-2022, 09:31 PM #8

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mcbudder2004
Senior Member
687
12-08-2022, 03:36 AM
#9
Consider checking out reviews of Zen4 after its release. This is the standard process—there’s nothing that needs fixing.
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mcbudder2004
12-08-2022, 03:36 AM #9

Consider checking out reviews of Zen4 after its release. This is the standard process—there’s nothing that needs fixing.

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Acew25
Member
51
12-16-2022, 02:57 AM
#10
You're not obligated. There are alternative solutions available, such as understanding it's okay if it behaves naturally. Some testers found different methods to manage the temperature.
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Acew25
12-16-2022, 02:57 AM #10

You're not obligated. There are alternative solutions available, such as understanding it's okay if it behaves naturally. Some testers found different methods to manage the temperature.

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