AnsweredAssumed Answered

PC with a Ryzen 7 3700X rebooting under load.

Question asked by amh3c9 on Jun 17, 2020
Latest reply on Jul 19, 2020 by amh3c9

Hello everyone


As the title states, my newly built system just reboots whenever the CPU is under load.

I get the following error in the Windows Event Viewer:

Event 18, WHEA-Logger

A fatal hardware error has occurred.

Reported by component: Processor Core
Error Source: Machine Check Exception
Error Type: Bus/Interconnect Error
Processor APIC ID: 0

The details view of this entry contains further information.

(I attached the detailed information)


During normal use the system works fine. Under load (gaming/cinebench or Ryzen Master stress test) it reboots.

While playing games it reboots at seemingly random times (sometimes in short succession, sometimes not at all). During stress tests with Cinebench it usually rebooted during the second consecutive run and with the Ryzen Master stress test it rebooted during the CPU test (5 minutes). It did not reboot when I launched a RAM only stress test. 

During the stress test Ryzen Master reported the following stats:

  • Temperature: ~70 C
  • Peak Speed: ~4100 MHz
  • PPT: 99% of 88 W
  • CPU Power: ~65 W
  • SOC Power: 12 W
  • TDC (CPU): 82% of 60 A
  • EDC (CPU): 100% of 90 A

(might the PPT and EDC be the problem?)


During the reboots the CPU, VGA and BOOT (booting device) LED light up on the motherboard indicating that they were not detected or failed. Still boots though.

My system is not overheating (reboots happen when the CPU temp is in the high 60 / low 70) and I have not overclocked anything. Apart from setting the RAM to 3600MHz in the BIOS.

All drivers are up to date according the MSI Live verification and manual comparison. (Not 100% sure for AMD drivers)

I also do net get a BSOD, even though I disabled automatic reboots upon a crash.


These are my components:

  • Processor AMD Ryzen 7 3700X 8-Core Processor (stock cooler)
  • MSI MEG X570 UNIFY (MS-7C35)
  • G.Skill Trident Z Neo (2x, 16GB, DDR4-3600, DIMM 288)
    • set to DDR4-3600 in the BIOS
  • NVIDIA GeForce GTX 980 (salvaged from my previous PC)
  • be quiet! Straight Power 11 (650W)


Thank you for reading and helping me solve this issue!

If any further information is required, let me know.







PS: I also attached the MSI Dragon system information.