[SOLVED] Need Help with new 7950x Build

[Amphoterism]

Windows 11 64

PCPartPicker Part List: https://pcpartpicker.com/list/gqfnC6
CPU: AMD Ryzen 9 7950X 4.5 GHz 16-Core Processor ($568.99 @ Amazon)
CPU Cooler: ARCTIC Liquid Freezer II 420 72.8 CFM Liquid CPU Cooler ($164.99 @ Amazon)
Motherboard: Asus ROG STRIX X670E-E GAMING WIFI ATX AM5 Motherboard ($499.99 @ Amazon)
Memory: Corsair Vengeance 64 GB (2 x 32 GB) DDR5-5200 CL40 Memory ($244.99 @ Newegg)
Video Card: MSI SUPRIM LIQUID X GeForce RTX 4090 24 GB Video Card ($2379.00 @ Amazon)
Case: Corsair 7000D AIRFLOW ATX Full Tower Case ($229.99 @ Amazon)


With default BIOS settings, I'm only getting a core clock of 2.7ghz
Pic From Task Manager

If I turn on AI Overclock in the bios it will clock it to 5.4 Ghz, but it will thermal throttle and the CPU utilization will go from 100% to 10% to 100% to 10% during benchmarks.
If I set the power settings in windows settings to 99% w/Ai Overclock enabled, it will run at 4.8Ghz at about 50°C. Why can't I get it to run at 5.2 Ghz stock?
If I manually set an Overclock in BIOS without AiOverclock, it will revert to 2.7Ghz Clock

CPU Utilization Graph Benchmark with AiOverclock enabled
Power Settings Set at 99 Percent
Benchmark at 99% Power - Temps at 50°C

Edit: Fixed Dead Links

 

[Roland Of Gilead]

Windows 11 64

PCPartPicker Part List: https://pcpartpicker.com/list/gqfnC6
CPU: AMD Ryzen 9 7950X 4.5 GHz 16-Core Processor ($568.99 @ Amazon)
CPU Cooler: ARCTIC Liquid Freezer II 420 72.8 CFM Liquid CPU Cooler ($164.99 @ Amazon)
Motherboard: Asus ROG STRIX X670E-E GAMING WIFI ATX AM5 Motherboard ($499.99 @ Amazon)
Memory: Corsair Vengeance 64 GB (2 x 32 GB) DDR5-5200 CL40 Memory ($244.99 @ Newegg)
Video Card: MSI SUPRIM LIQUID X GeForce RTX 4090 24 GB Video Card ($2379.00 @ Amazon)
Case: Corsair 7000D AIRFLOW ATX Full Tower Case ($229.99 @ Amazon)
Power Supply: MSI MEG Ai1300P PCIE5 1300 W 80+ Platinum Certified Fully Modular ATX Power Supply

With default BIOS settings, I'm getting a core clock of 2.7ghz. With PBO enabled I'm only getting a core clock of 2.7ghz.
Pic From Task Manager

If I turn on AI Overclock in the bios it will clock it to 5.4 Ghz, but it will thermal throttle and the CPU utilization will go from 100% to 10% to 100% to 10% during benchmarks.
If I set the power settings in windows settings to 99% w/Ai Overclock enabled, it will run at 4.8Ghz at about 50°C. Why can't I get it to run at 5.2 Ghz stock?
If I manually set an Overclock in BIOS without AiOverclock, it will revert to 2.7Ghz Clock

CPU Utilization Graph Benchmark with AiOverclock enabled
Power Settings Set at 99 Percent
Benchmark at 99% Power - Temps at 50°C

Hey there,

What bios are you running? When did you last update it. Given it's an entirely new platform, the bios might remedy the issue quickly.

You may need to update it. Make sure to clear CMOS afterwards, to ensure any remnants of old microcode are cleared.

 

[Amphoterism]

Hey there,

What bios are you running? When did you last update it. Given it's an entirely new platform, the bios might remedy the issue quickly.

You may need to update it. Make sure to clear CMOS afterwards, to ensure any remnants of old microcode are cleared.

I just built this PC last night so I've just updated to the latest bios and cleared the CMOS multiple times.

 

[Amphoterism]

In case anyone stumbles upon this in the future, setting the ram frequency 200mhz below the ram max frequency did the trick

 

[alceryes]

In case anyone stumbles upon this in the future, setting the ram frequency 200mhz below the ram max frequency did the trick

Interesting conclusion. Glad you got it figured out.

This solution is definitely gonna be on a case-by-case basis. I just built out a new 7950X build and am running the RAM at it's full XMP profile speed (actually a bit faster since I manually lowered the CAS latency).