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Journeyman III

Problem Supermicro H11DSi + 2 x AMD EPYC 7351

I have the following configuration:

Motherboard: Supermicro H11DSi - AMD SP3 socket - DDR4 RAM - Extended ATX

CPU: 2 x AMD EPYC 7351 - 2.4 GHz - 16-core - 32 threads - 64 MB cache - Socket SP3

Cooler 2 x Noctua NH-U9 TR4-SP3 - (for: TR4, SP3) - 92 mm

16 x Memory: RDIMM Crucial 8GB CT8G4RFD8266 (Specs: DDR4 PC4-21300 • CL=19 • Dual Ranked • x8 based • Registered • ECC • DDR4-2666 • 1.2V)

SSD: Samsung V-NAND SSD 970 PRO M.2 - 512 Gb

OS: Windows 10 Pro x64

MB: Last Firmware on BIOS and IPMI.

When I run the calculation on Ansys CFX on 30 - 32 cores(CPU use 100%), with all memory, after 2 or 5 min, I get a blue screen (DPC WATCHDOG VIOLATION)

If I leave 8 slots memory 64GB, system works is good and stable.

I tried different OS and change memory. Any ideas?

The problem is very similar to this: EPYC 7351 + Supermicro H11-DSi soft reboot blank screen

Thank You.

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rec
Journeyman III

Re: Problem Supermicro H11DSi + 2 x AMD EPYC 7351

I found the reason - 1 memory module failed, I will take it to the service center, now the server runs on 15 memory modules.

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