Windows activation serves more than just appearance: my 5080 was limited to power mode until I pressed a key.
Windows activation serves more than just appearance: my 5080 was limited to power mode until I pressed a key.
I recently assembled a new PC featuring a ROG Astral 5080 and a Ryzen 9 9950x3D. Following the installation of Windows 11 Pro (unactivated), I observed my GPU being capped at 400W during stress tests. After confirming the maximum power output was 450W in CMD using: nvidia-smi -q -d POWER I, I changed the BIOS setting to "Q" and rechecked the limits, which now displayed an expected 360W. I then switched back to the "P" BIOS and attempted to manually adjust the power limit via an elevated command prompt with: nvidia-smi -pl 450. This triggered the error: "Failed to set power management limit for GPU 00000000:01:00.0: Insufficient Permissions Terminating early due to previous errors." Despite being logged in an admin account with full privileges and running CMD as administrator, the issue persisted.
I followed troubleshooting steps: double-checked motherboard BIOS configurations (including resizable BAR, PCIEX16_1 Link Mode, CSM, PCIe ASPM, etc.), confirmed the M.2 module wasn’t sharing lanes, verified all cables were securely connected, removed and reinserted the GPU, performed a GPU VBIOS flash (already up to date), cleared DDU, reinstalled drivers, and reviewed power settings and services. I ensured CMD always ran as administrator.
Despite these efforts, the restriction continued. Eventually, I opted to activate Windows 11 Pro to rule out that as the cause. Once activated without any reboots, using the command line to adjust the power limit resolved the issue, and everything functioned normally.
This experience highlights that even without activating Windows, there was a restriction in kernel access. For reference, my complete build is listed below:
- Asus ROG Strix X870E-E Gaming Wi-Fi Motherboard
- Asus ROG Astral 5080
- AMD Ryzen 9 9950x3D
- Crucial Pro 64gb DDR5 6000 mts CL40
- Crucial T705 PCIe Gen5 NVME m.2 4TB
- Lian Li EDGE 1000W
- All standard cables used
Microslop is restricting access to power management features? That's unexpected, isn't it?
Windows isn't free, you're right. It's much more open now than before.
This seems like a very particular detail, almost like a glitch in the 'demo mode' rather than a real function.