2x gtx 1080

>  GPU0  69C  Sol/s: 541.2  Sol/W: 3.07  Avg: 549.0  I/s: 294.1  Sh: 1.32   1.00 207
   GPU1  71C  Sol/s: 547.1  Sol/W: 3.05  Avg: 542.4  I/s: 291.0  Sh: 1.23   1.00 205
   ========== Sol/s: 1088.3 Sol/W: 3.06  Avg: 1091.4 I/s: 585.1  Sh: 2.55   1.00 206

used

sudo nvidia-smi -pm ENABLED
sudo nvidia-smi -pl 180

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 387.26                 Driver Version: 387.26                    |
|-------------------------------+----------------------+----------------------+
| 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 1080    On   | 00000000:02:00.0 Off |                  N/A |
| 30%   69C    P2   181W / 180W |    547MiB /  8114MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+
|   1  GeForce GTX 1080    On   | 00000000:03:00.0  On |                  N/A |
| 34%   71C    P2   182W / 180W |    882MiB /  8105MiB |    100%      Default |
+-------------------------------+----------------------+----------------------+


any idea how to reduce cpu temp a little?