Ada Lovelace · RTX 40 · AD102

GPU Unlock for RTX 4090 D

Experimental10de:2685

The RTX 4090 D is supported experimentally. Results come from one or a few cards, so check your own log carefully.

Measured BF16 (dense matmul, FP32 accumulate)

No per-card BF16 number is published yet. The tensor rate itself doubles on supported cards; real gains depend on power headroom.

Experimental Ada IDs need their own opt-in flag and an exact PCI address; targets=all never selects them in gpu-unlock-ada.

How to unlock the RTX 4090 D

01Clone and install the project on Linux.

git clone https://github.com/JustAResearcher/gpu-unlock-ada
cd gpu-unlock-ada
make install

02Add this to your kernel command line. Replace the address with yours from lspci -D.

gpu_unlock.targets=0000:01:00.0 gpu_unlock.rtx4090d_experimental=1

03Power off, start again, and check the log.

journalctl -k -b | grep gpu_unlock

Can the RTX 4090 D be unlocked on Windows?

No Windows port reports the RTX 4090 D yet. Use Linux. WSL2 does not help, because the unlock must run before the Windows driver starts.

Which PCI device IDs does the RTX 4090 D use?

10de:2685. Check yours with lspci -nn | grep -i nvidia.