Hey there! Sorry to hear you're stuck with that frustrating bluescreen when trying to pair your RTX A2000 with the old GTX 1080. Let's break down the most likely issues and fixes to get both cards working together:

• Power Supply Limitations
  First, double-check your PSU's total wattage and power delivery. The RTX A2000 draws around 70W, while the GTX 1080 pulls a hefty 180W. Add in your CPU, RAM, and other components, and you'll need a PSU with a minimum 550W rated output (600W+ is safer). Also, make sure the GTX 1080 is getting direct power from the PSU via its 8-pin connector—some workstation motherboards route the second PCIe slot's power through the motherboard, which might not be enough for a high-power card like the 1080.

• Driver Conflicts (The Big Culprit)
  NVIDIA's professional workstation cards (like the A2000) use Studio/Quadro drivers, while consumer cards (GTX 1080) typically use Game Ready drivers. Mixing these two driver types almost always causes conflicts, which is probably why you saw the A2000 being uninstalled before the bluescreen. Here's how to fix it:

  1. Boot into Windows Safe Mode.
  2. Use DDU (Display Driver Uninstaller) to fully wipe all NVIDIA drivers from your system—this ensures no leftover files cause issues.
  3. Reboot normally, then install the latest NVIDIA Studio Driver (not Game Ready). Studio drivers support both professional and consumer cards, so it should play nicely with both the A2000 and GTX 1080.

• BIOS Settings Tweaks
  Lenovo workstations sometimes have BIOS restrictions that interfere with multi-GPU setups. Head into your BIOS (usually by pressing F1 or Del during boot) and check these settings:

  • Make sure the second PCIe slot is enabled (some models disable it by default to save power).
  • Disable any SLI or Multi-GPU options—since the A2000 and GTX 1080 are different architectures, they can't use SLI anyway, and leaving this on might cause conflicts.
  • Update your BIOS to the latest version from Lenovo's support tools—manufacturers often release fixes for hardware compatibility issues.

• Hardware Check
  Rule out physical issues with the cards or slots:

  • Test the GTX 1080 alone in the first PCIe slot to confirm it works on its own.
  • Swap the A2000 into the second slot and the GTX 1080 into the first—if the bluescreen still happens, it's less likely a slot problem.
  • Clean the gold contacts on both cards with a rubber eraser (gently!) to remove any oxidation that might be causing a bad connection.

Give these steps a try, and hopefully one of them gets your dual-GPU setup running smoothly. Let us know if you hit any snags along the way!

备注：内容来源于stack exchange，提问作者heights1976