Hi, I have the same problem here. But I’m pretty sure that all of my GPU are the same.
Fri Jun  1 15:17:23 2018       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 396.24                 Driver Version: 396.24                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX TIT...  Off  | 00000000:01:00.0 Off |                  N/A |
| 25%   55C    P8    17W / 250W |    887MiB / 12212MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   1  GeForce GTX TIT...  Off  | 00000000:02:00.0 Off |                  N/A |
| 33%   65C    P8    20W / 250W |    475MiB / 12212MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   2  GeForce GTX TIT...  Off  | 00000000:04:00.0 Off |                  N/A |
| 22%   41C    P8    13W / 250W |     11MiB / 12211MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+