Hi. I’ve realized that I bought two gtx1060s with Hynix memories for same price with the one with a Samsung memory. And unfortunately they’re not working at same performance.
Here is details of the problem (Interresting discovery on low hashrate GTX 1060):
https://github.com/ethereum-mining/ethminer/issues/314
Samsung one (GPU0) works better even with limiting its power:
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 390.30 Driver Version: 390.30 |
|-------------------------------+----------------------+----------------------+
| 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 106... Off | 00000000:01:00.0 Off | N/A |
| 25% 55C P2 58W / 60W | 2780MiB / 3019MiB | 100% Default |
+-------------------------------+----------------------+----------------------+
| 1 GeForce GTX 106... Off | 00000000:04:00.0 Off | N/A |
| 41% 68C P2 105W / 120W | 506MiB / 3019MiB | 100% Default |
+-------------------------------+----------------------+----------------------+
| 2 GeForce GTX 106... Off | 00000000:05:00.0 Off | N/A |
| 43% 71C P2 108W / 120W | 506MiB / 3019MiB | 100% Default |
+-------------------------------+----------------------+----------------------+
And I’m getting 20 Mh with GPU0 and 15 Mh per card with other two.
How can I downclock the card with this driver?
Driver version is automatically updated with Cuda 9.1.
I’ve seen some people succeeded before,
- https://noobminer.xyz/overclocking-multiple-nvidia-graphics-card-linux/
- https://www.reddit.com/r/EtherMining/comments/6jzvye/finally_got_headless_ubuntu_with_nvidia_going/
Also I’ve succeed it with previous versions of driver before too.
Thanks.
[s]Also with this driver, even with doing this;
sudo chmod 444 /etc/X11/xorg.conf
Something overrides xorg.conf changes at boot.[/s]
With using
chattr +i /etc/X11/xorg.conf
it stays safe. but I can just overclock the first gpu. Probably I need to create fake screens but, I don’t know how to make it work with 1 real monitor and 2 fake ones.