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Journeyman III

New PC B550 Ryzen 5 3600XT: Crashes with Application Error 1000 and Exception code 0xc0000005

Hi together,

I despair of my new computer. For 3 months I have been trying to get stable the new, self-assembled gaming PC. Overclocking isn't used! Clean new Windows 20H2 installation. It was never stable, I swapped all hardware components. It's a nightmare.

Program crashes with Application Error 1000 and Exception code 0xc0000005 seen with almost all programs, mostly also simple Windows programs such as Explorer, MMC, Outlook, Flight Simulator 2020, Nvidia GUI, Firefox, Chrome, Dirt Rallye, VirtualBox etc. If the error occurs, the app closes. The errors cannot be reproduced but could occur twice or more per hour. 

Used and swapped Hardware to exclude faulty products:

  • CPU: Ryzen 5 3600XT, tried a different 3600
  • Fan: AT first boxed fan, now: Enermax fan, CPU temp always below 75 °C, GPU even lower, board below 45 °C
  • Board: MSI B550 Tomahawk, tried also: TUF Gaming Asus B550-PLUS
  • RAM:  Corsair 2x16 GB, Vengeance RGB DDR4 3200 MHz, CMW32GX4M2C3200C16, 
    • tried also: GKILL: GSKILL F4-3200C16D-32GVK
      • both are tested by by MSI
    • tried also: Viper Gaming Patriot PVS432G320C6K
  • GPU: MSI Geforce RTX 3060 Ti Gaming X Pro, tried also: Gigabyte GTX 660
  • SSD: Gigabyte GP-AG41TB NVMe, tried also HDD via SATA
  • Power supply: bequiet Powerzone 750 W, tried Corsair RM750x 750 W
  • Error also occurs without connection to monitor, mouse and keyboard
  • Case: bequiet Pure Base 500DX, I removed all plugs (USBs, sound, LED, case fans) except the start key from the motherboard to exclude impacts here

Further tries:

Fresh Windows
From the biginning I used fresh Windows installation.

The error already occurs in a fresh installation of 20H2 or 2004, each as a Pro variant, without even having installed an app or an additional driver or by using the first updates. Even in safe mode it comes up. However, Windows itself never crashed with a blue screen or direct reboot.

With Windows and MSI/Nvidia drivers
The error remains after installing the latest NVidia and B550 drivers or the MSI sound driver through their MSI Dragon app. No other USB devices are connected. All devices have installed a driver without an error message.

Temperature checked - error in load and idle condition
Temperatures in uncritical. Occurs in idle and in load situations Games with open and closed case.

UEFI settings are in the default automatic settings. No overclocking - Game mode deactivated. 

RAM tested in SPD and XMP profile as specified. I tried also small voltage offsets +0,05 V and manual set slower timings. RAM test in dual mode and single mode. In recommended slots and not recommended. Neither the Windows RAM tester nor memtest after hours of tests found errors in both types (Corsair, GSkill). Even tested here with single and dual channel mode. 

Used default automatic settings and tried fix 2200 MHz and tried VCore with +0,05 V offset. UEFI/BIOS is updated to 7C91vA5. Tried several CPU features: vitualisation, energy savings, multi threading, fix multiplicator, fix VCore

Virus scanner
Virus scanner is always Windows original. Was also deactivated together with the firewall to test. Viruses are not found under Windows or as a bootable Windows Defender. The USB boot versions of Kaspersky and Avira didn’t find anything either - but neither was installed under Windows.

Windows Scans
Now something's going to be weird. The “sfc / scannow” does find errors, corrects them, and never shows errors again when it runs again. How can it be that the scan finds errors reproducibly after a fresh installation? Or does it just install newer versions?

However, “dism.exe / online / cleanup-image / scanhealth” shows no errors.

Loose cables are checked have no effect and the PC has already been assembled three times with different boards and power supplies.

Prime and Cinebench can run stably for hours.

Used with and without monitor. With and without GSync compatible mode.

Different location
I even changed the location to a different house in a different city to exclude power issues.

Log Example:
Name der fehlerhaften Anwendung: StartMenuExperienceHost.exe, Version:, Zeitstempel: 0x4fe0bcb3

Name des fehlerhaften Moduls: dcomp.dll, Version: 10.0.19041.546, Zeitstempel: 0x97472af4

Ausnahmecode: 0xc0000005

Fehleroffset: 0x00000000000538bf

ID des fehlerhaften Prozesses: 0x15fc

Startzeit der fehlerhaften Anwendung: 0x01d705c046918c40

Pfad der fehlerhaften Anwendung: C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe

Pfad des fehlerhaften Moduls: C:\Windows\SYSTEM32\dcomp.dll

Berichtskennung: a3a5cb29-7bd0-41c9-828c-a090e4b333f7

Vollständiger Name des fehlerhaften Pakets: Microsoft.Windows.StartMenuExperienceHost_10.0.19041.610_neutral_neutral_cw5n1h2txyewy

Anwendungs-ID, die relativ zum fehlerhaften Paket ist: App

Und dies wird im Ordner WER\Temp\ geschrieben:

<?xml version="1.0" encoding="UTF-16"?>





<Product>(0x30): Windows 10 Pro</Product>




<Flavor>Multiprocessor Free</Flavor>


































I've searched several forums and followed their instructions - mostly aimed to faulty RAM and virus scanners and individual apps.

1 Reply
Journeyman III

SOLUTION probably found:

Although in the early phase I changed the first 3600 XT to a different 3600 w/o XT and the errors furthermore exists.

Then I found a similar thread where the solution was to deactivate cores. I did this in the UEFI and tried it to reduce to 4 and 2 cores. Both ware successful. This means that the CPU is driving this issue although I tried already two different. Strange.

Now I changed to a 5600X and the error never cam up. Now 5 days error free, before I had between 5 and 30 errors.