Hello all,
I’m having a frustrating issue with my recently delivered Lenovo P8 Thinkstation and hoping someone can help me out with resolving this.
This workstation has an AMD Threadripper Pro 7965 processor, one RTX A1000 and two RTX A6000 Ada generation GPUs. I wanted to leave the A1000 in WDDM mode and put the two RTX A6000s in TCC mode.
I did so using the nvidia-smi utility but when I restarted the workstation, I got the following error message for both the A6000s in Device Manager: “This device cannot start. (Code 10). Insufficient system resources exist to complete the API.”
Then I went into the BIOS and did the following:
- Updated the A1000 to be my primary display. Now my monitor is connected through MiniDP to the A1000 card, and I can see the bios when the monitor is connected to this card.
- Enabled “Re-Size BAR Support” in the PCI Express Setup page
- In advanced CPU setup, I turned “Kernel DMA Protection” to Disabled.
Then I saved my settings and let the workstation continue booting up. In Windows 11, I could then see both A6000s showing up in the Nvidia Control Panel with “TCC” in the Usage Mode. I thought that was the end of my troubles. But when I restart the PC (vanilla restart using the Start menu), the GPUs go back to not starting and show the Error 10 message again.
I can make this work again by re-enabling DMA in BIOS, then restarting the PC, then disabling DMA and rebooting up the PC. But I don’t understand why the cards don’t show up in TCC mode after a vanilla restart? Any leads would be greatly appreciated!
Thank you!
C:\Users\pmpd.shared>nvidia-smi
Wed Aug 20 16:11:52 2025
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 572.16 Driver Version: 572.16 CUDA Version: 12.8 |
|-----------------------------------------+------------------------+----------------------+
| GPU Name Driver-Model | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+========================+======================|
| 0 NVIDIA RTX 6000 Ada Gene... TCC | 00000000:0E:00.0 Off | Off |
| 30% 51C P8 25W / 300W | 9MiB / 49140MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
| 1 NVIDIA RTX A1000 WDDM | 00000000:81:00.0 On | N/A |
| 30% 51C P5 N/A / 50W | 329MiB / 8188MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
| 2 NVIDIA RTX 6000 Ada Gene... TCC | 00000000:C2:00.0 Off | Off |
| 30% 51C P8 29W / 300W | 9MiB / 49140MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 1 N/A N/A 14200 C+G ...yb3d8bbwe\WindowsTerminal.exe N/A |
| 1 N/A N/A 17132 C+G C:\Windows\explorer.exe N/A |
| 1 N/A N/A 17196 C+G ...indows\System32\ShellHost.exe N/A |
| 1 N/A N/A 17324 C+G ...2txyewy\CrossDeviceResume.exe N/A |
| 1 N/A N/A 18804 C+G ..._cw5n1h2txyewy\SearchHost.exe N/A |
| 1 N/A N/A 18828 C+G ...y\StartMenuExperienceHost.exe N/A |
| 1 N/A N/A 20916 C+G ...0.3405.102\msedgewebview2.exe N/A |
| 1 N/A N/A 23248 C+G ...8bbwe\PhoneExperienceHost.exe N/A |
| 1 N/A N/A 24296 C+G ...is\TrayMonitor\MmsMonitor.exe N/A |
+-----------------------------------------------------------------------------------------+