Troubleshooting

Having issues with your DMA card? Common issues and solutions, here.

Flea Power Drain/Cold Boot

This will resolve most issues with your DMA card.

• Shutdown BOTH PCs
• Unplug the power cable from BOTH PCs
• Wait 60 seconds
• Press and/or hold the power button on BOTH PCs to ensure all power is drained from the PC and no LEDs remain lit

[FAIL] VMM INIT FAILED.

The DMA card and/or USB connection is stuck, often due to a fast reboot or system waking from sleep.

[FAIL] VMM INIT FAILED.

• Perform a Flea Power Drain/Cold Boot

FPGA: ERROR: Unable to connect to USB/FT601 device

The FTDI driver is not installed or incorrect DMA card port used.

• verify the DMA PC has the latest drivers installed from Prepare Windows
• verify the USB port being used on the DMA card is the DATA port

Failed to retrieve Physical Memory Map

Unstable or faulty USB connection.

• Reseat the USB cable on both ends (DMA PC and GAMING PC)
• Try a different available USB 3.2 (or better) port on the DMA PC
• Replace the USB cable; we recommend a Thunderbolt 4 (or better) cable
• Perform a Flea Power Drain/Cold Boot
• On the GAMING PC, Reinstall Windows

[SYMBOL] Offline symbols unavailable - file 'info.db' not found

PCILeech cannot retrieve symbol data for memory interpretation.

• Download the latest version of info.db and MemProcFS and place them in the same folder as the test tool

  • ufrisk info.db, MemProcFS_files_and_binaries-win_x64-latest

FPGA: TINY PCIe TLP Algorithm auto-selected

The DMA card is running at slower speeds due to poor USB connection or firmware.

• Reseat the USB cable on both ends (DMA PC and GAMING PC)
• Try a different available USB 3.2 (or better) port on the DMA PC
• Replace the USB cable; we recommend a Thunderbolt 4 (or better) cable
• Re-flash the card's firmware

  • sometimes, re-flashing the same firmware will not resolve this. To validate the card is not experiencing issues:

    • flash a test/diagnostic firmware
    • run a test on the card using the test tool
    • verify the card tests OK
    • re-flash your firmware
    • test again, verify the card tests OK
• Perform a Flea Power Drain/Cold Boot

[CORE] Initialization Failed. Unable to locate valid DTB / auto-identify OS

Incorrect BIOS settings or unstable USB link.

• Review all required BIOS changes on the GAMING PC: Disable Virtualization, IOMMU, etc.
• Reseat the USB cable on both ends (DMA PC and GAMING PC)
• Try a different available USB 3.2 (or better) port on the DMA PC
• Replace the USB cable; we recommend a Thunderbolt 4 (or better) cable
• Perform a Flea Power Drain/Cold Boot
• On the GAMING PC, Reinstall Windows

FTDI SuperSpeed-FIFO Bridge

• verify the DMA PC has the latest drivers installed from Prepare Windows
• verify the USB slot being used on the DMA PC is at least USB 3.2 or better
• manually uninstall the FTDI SuperSpeed-FIFO Bridge device in device manager

  • right click -> uninstall device
  • click Action menu -> scan for hardware changes
  • validate the device shows correctly in device manager
• verify the GAMING PC is fully updated and no Windows updates are pending