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ThreadripperFan

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  1. The mathematics work a bit different here. 2 x 4Ghz is not 8Ghz. But you can do calculations in parallel on multiple cores. Look up Parallel Computing.
  2. I have exactly the same config (CPU, mobo) and the 256GB memory runs at 2800Mhz.
  3. Thank you for your suggestion, however I feel it is exactly the voltage which is problematic, as soon as I go above 1.2V the system does not boot. Let me ask another question: what is typically the highest speed you can get at 1.2V?
  4. Dear all, I am having a problem with my memory speed. I am using the following components. Components: CPU: AMD Ryzen Threadripper 3990X Motherboard: ASUS ROG Strix TRX40-E Gaming Memory: 2 x Corsair Vengeance RGB pro 3200Mhz CL16 (CMW128GX4M4E3200C16) https://www.corsair.com/eu/en/Categories/Products/Memory/Vengeance-PRO-RGB-Black/p/CMW128GX4M4E3200C16 Problem: The memory is not able to run at 3200Mhz (XMP,1.35V), currently the highest it goes is 2800Mhz with 16-18-18-38 timings at 1.2V. I know the memory is not on the QVL list of the motherboard and it is known that this motherboard has limitations with the Threadripper 3990X and 256GB. But I wonder if there is anybody out there who knows some tricks to get this memory working at higher speeds. All tips or insights are welcome!
  5. I use the Noctua nh-u14s tr4-sp3 with dual fan configuration and the temperatures stay low, even under full load for multiple days. https://www.techspot.com/review/1995-amd-threadripper-air-cooling/
  6. As a Threadripper 3990X owner who also uses this CPU for scientific computations I can conform that a Noctua nh-u14s tr4-sp3 air cooler with dual fan configuration is sufficient to keep this CPU cool. Do not use the water cooler. The advice from Quadrum to use 4000Mhz ddr4 memory is also bad. First of all there is no reason to go above 3600Mhz, but instead I would advice you to increase your capacity and use 128GB of ram. Many scientific applications quickly use 2GB per core. Actually I put 256GB of ram in my system and in some applications It already goes above 200GB. For the motherboard I would advice the newer asus XE-gaming instead of the regular E-gaming since that one is better for use in combination with the 3990X. The regular E-gaming also has problems of running the memory at speeds higher than 2666Mhz. You can contact me for more advice, I have some hands-on experience with this CPU within a scientific application context.
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