Hey plebs,
I am new to this forum. Found you guys while setting up my 2x R909. I am into Bitcoin since end of 2020. Made my first newbie umbrel node in 2021. So the next step is hobby mining. Especially with the side effect of using the heat.
So now I am Solo mining with Kano's pool. First of all:
thank you Kano for keeping up the good work with the cgminer. I am using cgminer around a week now and I am really happy with it. Also
thanks to Sidehack for the valuable posts I have read.
Now to my R909 double team:
The controller is a RPi 4 2GB Raspiblitz Bitcoin Full Node. Through a good 3A USB 3.0 HUB the Pi-4-controller is connected to the R909s (blue USB 3.0 port at RPi). The power supplies are two brand new 150W Jack devices.
The first R909 is a mf beast. Blue voltage controller knob was set to around 11 o'clock since the beginning. The beast gave me 2.6 TH/s at 650Mhz WU:100% STABLE. So I was happy as fuck to be so lucky in the silicon lottery. Then I ordered a second one and directly ran them together... but it was pretty slow. The second R909 had the voltage knob at 1 o'clock. So I tried to play with the voltage and the frequency without having a real plan. So at first my best setting was 2x R909 at 550 Mhz making around 4.2 TH/S. The higher I went it always turned out to be the same:
the second R909 lost efficiency over the course of a few hours. Then I was fed up and wanted to analyse both of them separately. So both
blue knobs to 12 o'clcok and then increased frequency by 25 Mhz,
starting at 450 Mhz. giving them around
20 min. Setting
display zero 1 min after target frequency was hit.
Summary:
1st R909 (blue knob 12 o'clock) 550 Mhz: 2.237 TH/s avg - WU: 100% avg
575 Mhz: 2.285 TH/s avg - WU: 98% avg
600 Mhz: 2.415 TH/s avg - WU: 100% avg
625 Mhz: 2.480 TH/s avg - WU: 98% avg
650 Mhz: 2.600 TH/s avg - WU: 100% avg (sweet spot in my opinion - takes more energy but also a better heater
)2nd R909 (blue knob 12 o'clock)550 Mhz: 2.107 TH/s avg - WU: 100% avg
575 Mhz: 2.250 TH/s avg - WU: 98% avg
600 Mhz: 2.350 TH/s avg - WU: 97% avg
625 Mhz: starting good at 2.400 TH/s avg - WU: 95% avg...after 15 min it started slowing down...to after 20 min: 2.335 TH/s avg WU: 90% avg
so I put the blue voltage know a little bit more clockwise to around 1 o'clock:
625 Mhz 1 o'clock: 2.450 TH/s avg WU: 97% avg (sweet spot in my opinion)650 Mhz 1 o'clock: starting at 2.400 TH/s avg - WU: 89% avg...after 15 min it started slowing down again....
so blue knob to 2 o'clock:
650 Mhz 2 o'clock: 2.200 TH/s avg WU: 80% avg seems to be the end for the second R909
Then i ran them TOGETHER again and tried 625 Mhz at first -> which started at nearly 4.9 TH/s
![Shocked](https://bitcointalk.org/Smileys/default/shocked.gif)
and it seemed to be stable for an hour... just to then slow down again...
![Cry](https://bitcointalk.org/Smileys/default/cry.gif)
In the end their
Team-Sweet-Spot is at 600 Mhz at around 4.5 - 4.6 TH/s average stable... until now...
cgminer version 4.12.1 - Started: [2023-11-26 18:01:39.897]
--------------------------------------------------------------------------------
(5s):4.467T (1m):4.668T (5m):4.617T (15m):4.247T (avg):4.544Th/s
A:2481500 R:2836 HW:1152 WU:63478.6/m
Connected to de.kano.is diff 2.84K with stratum as user saeshtoshi.worker1
Block: 183ad73b... Diff:68T Started: [19:04:13.928] Best share: 1.8M
--------------------------------------------------------------------------------
[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
0: GSF 10070440: BM1397:06+ 600.00MHz T:600 P:600 (3:2) | 98.4% WU: 96% | 2.175T / 2.328Th/s WU:32522.3/m
1: GSF 10070465: BM1397:06+ 600.00MHz T:600 P:600 (3:2) | 93.3% WU: 92% | 2.323T / 2.215Th/s WU:30953.2/m
--------------------------------------------------------------------------------
[2023-11-26 19:07:15.828] Accepted 13410b25 Diff 3.4K/2836 GSF 1
[2023-11-26 19:07:28.152] Accepted 0d8c2aab Diff 4.84K/2836 GSF 0
[2023-11-26 19:07:34.374] Accepted 097dc97d Diff 6.91K/2836 GSF 1
[2023-11-26 19:07:34.744] Accepted 143e19b0 Diff 3.24K/2836 GSF 0
[2023-11-26 19:07:34.789] Accepted 0298c0e4 Diff 25.2K/2836 GSF 1
[2023-11-26 19:07:35.535] Accepted 0693942f Diff 9.96K/2836 GSF 0
[2023-11-26 19:07:36.359] Accepted 019a96c4 Diff 40.9K/2836 GSF 0
[2023-11-26 19:07:37.973] Accepted 11914371 Diff 3.73K/2836 GSF 1
[2023-11-26 19:07:44.175] Accepted 13f5f16d Diff 3.28K/2836 GSF 0
[2023-11-26 19:07:46.069] Accepted 0a3d4f40 Diff 6.4K/2836 GSF 0
[2023-11-26 19:07:48.452] Accepted 0c0c42dc Diff 5.44K/2836 GSF 1
[2023-11-26 19:07:49.034] Accepted 075a675d Diff 8.91K/2836 GSF 1
[2023-11-26 19:07:50.243] Accepted 11f06a70 Diff 3.65K/2836 GSF 1
[2023-11-26 19:07:51.585] Accepted 065a2789 Diff 10.3K/2836 GSF 1
[2023-11-26 19:07:54.295] Accepted 0948fd15 Diff 7.06K/2836 GSF 1
[2023-11-26 19:07:59.152] Accepted 0f5b798c Diff 4.27K/2836 GSF 1
[2023-11-26 19:08:00.838] Accepted 04ba0042 Diff 13.9K/2836 GSF 1
[2023-11-26 19:08:02.279] Accepted 116e2c2d Diff 3.76K/2836 GSF 1
[2023-11-26 19:08:02.814] Accepted 05478f78 Diff 12.4K/2836 GSF 0
[2023-11-26 19:08:07.202] Accepted 0a07960f Diff 6.53K/2836 GSF 1
[2023-11-26 19:08:07.621] Accepted 0248dacc Diff 28.7K/2836 GSF 1
[2023-11-26 19:08:07.862] Accepted 05090470 Diff 13K/2836 GSF 1
[2023-11-26 19:08:10.585] Accepted 0d0a39b0 Diff 5.03K/2836 GSF 1
[2023-11-26 19:08:12.486] Accepted 0438f2d0 Diff 15.5K/2836 GSF 0
[2023-11-26 19:08:13.108] Accepted 027d5f71 Diff 26.3K/2836 GSF 0
[2023-11-26 19:08:14.564] Accepted 09a48826 Diff 6.8K/2836 GSF 1
[2023-11-26 19:08:17.767] Accepted 08a97b42 Diff 7.57K/2836 GSF 1
[2023-11-26 19:08:21.517] Accepted 0fb666c3 Diff 4.17K/2836 GSF 0
[2023-11-26 19:08:24.568] Accepted 0cc7180b Diff 5.13K/2836 GSF 1
[2023-11-26 19:08:25.145] Accepted 34d0cab0 Diff 318K/2836 GSF 0
[2023-11-26 19:08:25.739] Accepted 0ac487f6 Diff 6.09K/2836 GSF 1
[2023-11-26 19:08:26.358] Accepted 935999d3 Diff 114K/2836 GSF 1
[2023-11-26 19:08:26.800] Accepted 027b839b Diff 26.4K/2836 GSF 1
[2023-11-26 19:08:29.419] Accepted 0c637093 Diff 5.29K/2836 GSF 0
[2023-11-26 19:08:29.786] Accepted 08686446 Diff 7.79K/2836 GSF 1
[2023-11-26 19:08:34.817] Accepted 0a816830 Diff 6.24K/2836 GSF 1
[2023-11-26 19:08:34.868] Accepted 10c2577d Diff 3.91K/2836 GSF 0
[2023-11-26 19:08:36.136] Accepted 0ada510d Diff 6.04K/2836 GSF 1
[2023-11-26 19:08:37.012] Accepted 064d8629 Diff 10.4K/2836 GSF 0
[2023-11-26 19:08:37.638] Accepted 01e0f8e1 Diff 34.9K/2836 GSF 1
[2023-11-26 19:08:38.539] Accepted 0b0a39fa Diff 5.94K/2836 GSF 0
[2023-11-26 19:08:42.006] Accepted 0116d7e0 Diff 60.2K/2836 GSF 1
[2023-11-26 19:08:45.333] Accepted 040cbd68 Diff 16.2K/2836 GSF 0
[2023-11-26 19:08:46.091] Accepted 1624b6c6 Diff 2.96K/2836 GSF 1
[2023-11-26 19:08:55.951] Accepted 0aeb5d2e Diff 6K/2836 GSF 1
Can someone give me advice how to run them more efficient as a duo? I can see some people running them with different frequencies in one cgminer. Haven't found out how to do this yet. So I could try to run them both at their individual sweet spot.
Thanks and Cheers to all you guys!
edit:
ah okay I found how I change the frequency when already running.....the JAVA API scripts
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
cgminer version 4.12.1 - Started: [2023-11-26 23:23:01.825]
--------------------------------------------------------------------------------
(5s):5.149T (1m):5.123T (5m):5.018T (15m):4.559T (avg):5.001Th/s
A:2496324 R:0 HW:1600 WU:69866.8/m
Connected to de.kano.is diff 3K with stratum as user saeshtoshi.worker1
Block: ce961410... Diff:68T Started: [23:42:56.815] Best share: 4.1M
--------------------------------------------------------------------------------
[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
0: GSF 10070440: BM1397:06+ 650.00MHz T:650 P:650 (3:2) | 98.9% WU:100% | 2.315T / 2.596Th/s WU:36271.8/m
1: GSF 10070465: BM1397:06+ 625.00MHz T:625 P:625 (3:2) | 95.8% WU: 95% | 2.551T / 2.404Th/s WU:33591.1/m
--------------------------------------------------------------------------------
Total electrical Power used from 2x R909, RPi 4, USB-HUB =
275 Watt ![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)
hope this plays out to be stable
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
any suggestions how to tune the second device... I am not sure where the WU should be "at least"..:?
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
edit2:
Finally found the ultimate sweet spot which is super stable. Both R909 at 650 Mhz. First one > blue voltage knob at 12 o'clock. Second one > at 1 o'clock.
And the thing which makes the difference: An extra FAN before the 2 R909 Fans. Means my problem was a problem of the temperature, which let the second R909 lose it's power every time after about 3 to 4 hours mining. Now I ordered 2 Noctua NF-8 Fans with 2200 RPM.
Stable at 275 Watt (including RPi and USB Hub)
cgminer version 4.12.1 - Started: [2023-11-27 15:15:00.297]
--------------------------------------------------------------------------------
(5s):4.865T (1m):5.213T (5m):5.108T (15m):5.093T (avg):5.112Th/s
A:22444755 R:68859 HW:16512 WU:71420.1/m
Connected to de.kano.is diff 3.28K with stratum as user saeshtoshi1.worker1
Block: 28df86e9... Diff:68T Started: [23:04:07.887] Best share: 16.1M
--------------------------------------------------------------------------------
[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
0: GSF 10070440: BM1397:06+ 650.00MHz T:650 P:650 (3:2) | 97.9% WU: 98% | 2.489T / 2.571Th/s WU:35919.7/m
1: GSF 10070465: BM1397:06+ 650.00MHz T:650 P:650 (3:2) | 95.8% WU: 97% | 2.558T / 2.541Th/s WU:35500.4/m
--------------------------------------------------------------------------------
[2023-11-27 23:22:10.824] Accepted 0810133a Diff 8.13K/3279 GSF 0
[2023-11-27 23:22:14.424] Accepted 12bd39df Diff 3.5K/3279 GSF 0
[2023-11-27 23:22:21.899] Accepted 11a29930 Diff 3.72K/3279 GSF 1
[2023-11-27 23:22:24.850] Accepted 0de8b367 Diff 4.71K/3279 GSF 0
[2023-11-27 23:22:26.784] Accepted 0cebb3a1 Diff 5.07K/3279 GSF 1
[2023-11-27 23:22:27.203] Accepted 13123833 Diff 3.44K/3279 GSF 1
[2023-11-27 23:22:29.407] Accepted 0af65f39 Diff 5.98K/3279 GSF 1
[2023-11-27 23:22:29.918] Accepted 052b283e Diff 12.7K/3279 GSF 0
[2023-11-27 23:22:30.218] Accepted 098793ad Diff 6.88K/3279 GSF 0
[2023-11-27 23:22:31.419] Accepted 09f3f076 Diff 1.69M/3279 GSF 0
[2023-11-27 23:22:33.494] Accepted 0d55d9c8 Diff 4.91K/3279 GSF 1
[2023-11-27 23:22:34.971] Accepted 077f0cbb Diff 8.74K/3279 GSF 1
[2023-11-27 23:22:35.934] Accepted 0206c30b Diff 32.3K/3279 GSF 0
[2023-11-27 23:22:37.615] Accepted 0bffe19f Diff 5.46K/3279 GSF 0
[2023-11-27 23:22:38.179] Accepted 04831b55 Diff 14.5K/3279 GSF 1
[2023-11-27 23:22:38.928] Accepted 0fd38575 Diff 4.14K/3279 GSF 0
[2023-11-27 23:22:40.797] Accepted 053f0b64 Diff 12.5K/3279 GSF 0
[2023-11-27 23:22:45.544] Accepted 064d4063 Diff 10.4K/3279 GSF 1
[2023-11-27 23:22:45.744] Accepted 1370ec67 Diff 3.37K/3279 GSF 1
[2023-11-27 23:22:48.566] Accepted 0410a067 Diff 16.1K/3279 GSF 0
[2023-11-27 23:22:50.146] Accepted 10b385bc Diff 3.92K/3279 GSF 1
[2023-11-27 23:22:51.431] Accepted 104b1eb9 Diff 4.02K/3279 GSF 1
[2023-11-27 23:22:51.593] Accepted 0cad1bca Diff 5.17K/3279 GSF 0
Love it!