I am mining RVN on a rig with 8 GTX GeForce 3GB cards. 7-th card has low hashrate, see miner log:
20210228 17:03:54 Mining at rvn.2miners.com:6060, diff: 4.29 G
20210228 17:03:54 GPU #0: MSI GTX 1060 3GB - 9596.40 kH/s, [T:55C, P:100W, F:100%, E:97kH/W], 1/1 R:0%
20210228 17:03:54 GPU #1: MSI GTX 1060 3GB - 9568.10 kH/s, [T:49C, P:101W, F: 98%, E:97kH/W], 6/6 R:0%
20210228 17:03:54 GPU #2: MSI GTX 1060 3GB - 9831.48 kH/s, [T:49C, P: 96W, F:101%, E:100kH/W], 7/7 R:0%
20210228 17:03:54 GPU #3: MSI GTX 1060 3GB - 9659.21 kH/s, [T:57C, P:100W, F:100%, E:98kH/W], 7/7 R:0%
20210228 17:03:54 GPU #4: MSI GTX 1060 3GB - 9888.79 kH/s, [T:56C, P: 97W, F:100%, E:101kH/W], 6/6 R:0%
20210228 17:03:54 GPU #5: Gigabyte GTX 1060 3GB - 9714.99 kH/s, [T:61C, P: 99W, F:100%, E:98kH/W], 6/6 R:0%
20210228 17:03:54 GPU #6: MSI GTX 1060 3GB - 9573.44 kH/s, [T:50C, P: 99W, F: 99%, E:97kH/W], 6/6 R:0%
20210228 17:03:54 GPU #7: Gigabyte GTX 1060 3GB - 4020.69 kH/s, [T:44C, P: 68W, F:100%, E:59kH/W], 4/4 R:0%
20210228 17:03:54 Hashrate: 71.85 MH/s, Shares/min: 1.185 (Avr. 1.089), Avr.P: 759W, Avr.E: 95kH/W
20210228 17:03:54 Uptime: 42 mins 31 secs | Algo: kawpow | T-Rex v0.19.11
it also consumes lesser power.
How to check what can cause this? What diagnostics tool can I use? How to check if the power supply is enough?
Switching to another RVN minter (t-rex, cc-enemy) and switching the cards between different PCI slots do not have a result.
root@rig0:/# nvidia-smi
Sun Feb 28 17:19:17 2021
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 460.56 Driver Version: 460.56 CUDA Version: 11.2 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 GeForce GTX 106... On | 00000000:01:00.0 Off | N/A |
|100% 55C P2 99W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 1 GeForce GTX 106... On | 00000000:02:00.0 Off | N/A |
| 98% 48C P2 101W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 2 GeForce GTX 106... On | 00000000:03:00.0 Off | N/A |
|100% 49C P2 95W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 3 GeForce GTX 106... On | 00000000:05:00.0 Off | N/A |
|100% 57C P2 100W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 4 GeForce GTX 106... On | 00000000:06:00.0 Off | N/A |
|101% 56C P2 99W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 5 GeForce GTX 106... On | 00000000:07:00.0 Off | N/A |
|100% 60C P2 98W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 6 GeForce GTX 106... On | 00000000:08:00.0 Off | N/A |
| 99% 50C P2 97W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 7 GeForce GTX 106... On | 00000000:0A:00.0 Off | N/A |
|100% 44C P2 68W / 100W | 2850MiB / 3019MiB | 100% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 0 N/A N/A 5352 C t-rex 2839MiB |
| 1 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 1 N/A N/A 5352 C t-rex 2839MiB |
| 2 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 2 N/A N/A 5352 C t-rex 2839MiB |
| 3 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 3 N/A N/A 5352 C t-rex 2839MiB |
| 4 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 4 N/A N/A 5352 C t-rex 2839MiB |
| 5 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 5 N/A N/A 5352 C t-rex 2839MiB |
| 6 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 6 N/A N/A 5352 C t-rex 2839MiB |
| 7 N/A N/A 2181 G /usr/lib/xorg/Xorg 6MiB |
| 7 N/A N/A 5352 C t-rex 2839MiB |
+-----------------------------------------------------------------------------+
I did apt dist-upgrade and nvidia-driver-update, but with no result.