GekkoScience has a new pod miner, just in time for Christmas

cygan

legendary

Activity: 3304

Merit: 8633

icarus-cards.eu

does anyone know what these messages could mean?

Code:

[2024-05-26 13:38:45.692] 0: GSF 0 - plateau_type PT_NONONCE [0] 17979 > 15339.17 (lock=0)
[2024-05-26 13:38:45.692] 0: GSF 0 - plateau NONONCE [0] adjust: RESET target frequency 370.00MHz -> 365.00MHz
[2024-05-26 13:38:46.965] 0: GSF 0 - R909 Bitcoin Miner (10070003)
[2024-05-26 13:38:48.709] 0: GSF 0 - set ticket to 0xf8/32 work 128/128.0
[2024-05-26 13:38:48.913] 0: GSF 0 - setting bauddiv : 00 61 (ftdi/2)
[2024-05-26 13:38:48.994] 0: GSF 0 - setting [all] frequency to 400.00MHz (400.00) (160/2/1/5)

i recently have this on my r909 gekkoscience miner... it keeps restarting after a few minutes and only runs on 400mhz instead of the desired 680mhz as 'commanded' or switches off completely Tongue

would be very grateful for any help

meligo

newbie

Activity: 10

Merit: 1

Quote from: NotFuzzyWarm on March 13, 2024, 11:14:35 AM

Quote from: meligo on March 13, 2024, 09:46:34 AM

Do have a question to Kano, If i'm running a latency check it seems that your pool is based not in Europe so it's giving me a latency of 155ms, do you have a Europe based pool also?

Um, Kano has a thread covering things regarding the pool... If you look at the 1st post you will see the list of all the worldwide nodes he runs for it. There are 2 for europe - one in Germany and one in the Netherlands.

BTW: 155ms latency is *not* bad. Not great either but not bad.

Thanks, already spun up a raspberry pi 5 with NVMe for a local Bitcoin node :-)

Got the Smart Hub and R909 today..

Some metrics, it came like this out of the box, didn't change a setting...
hashrate1m   "2.42T"
hashrate5m   "2.13T"
hashrate1hr   "2.08T"

2nd R909 sadly got a broken USB connector , broke off while plugging in the cable..

NotFuzzyWarm

legendary

Activity: 3822

Merit: 2703

Evil beware: We have waffles!

Quote from: meligo on March 13, 2024, 09:46:34 AM

Do have a question to Kano, If i'm running a latency check it seems that your pool is based not in Europe so it's giving me a latency of 155ms, do you have a Europe based pool also?

Um, Kano has a thread covering things regarding the pool... If you look at the 1st post you will see the list of all the worldwide nodes he runs for it. There are 2 for europe - one in Germany and one in the Netherlands.

BTW: 155ms latency is *not* bad. Not great either but not bad.

paid2

hero member

Activity: 504

Merit: 1065

Crypto Swap Exchange

Quote from: meligo on March 13, 2024, 09:46:34 AM

Do have a question to Kano, If i'm running a latency check it seems that your pool is based not in Europe so it's giving me a latency of 155ms, do you have a Europe based pool also?

This topic is not dedicated to Kano pool.

Anyway, the pool propose a node located in EU: https://kano.is/index.php?k=support#setup

Quote

The stratum.kano.is mining nodes are in West-USA and randomly select LosAngeles or Phoenix,
that are less than 10ms apart.

There are other mining nodes located around the world that you may be closer to:
stratum+tcp://nya.kano.is:3333 (NewYork)
stratum+tcp://nl.kano.is:3333 (Netherlands)
stratum+tcp://de.kano.is:3333 (Germany)
stratum+tcp://jp.kano.is:3333 (Japan)
stratum+tcp://se.kano.is:3333 (Seattle)
stratum+tcp://la.kano.is:3333 (LosAngeles)
stratum+tcp://px.kano.is:3333 (Phoenix)
stratum+tcp://al.kano.is:3333 (Atlanta)

meligo

newbie

Activity: 10

Merit: 1

Do have a question to Kano, If i'm running a latency check it seems that your pool is based not in Europe so it's giving me a latency of 155ms, do you have a Europe based pool also?

RKG456

jr. member

Activity: 32

Merit: 5

I have a Technical question about the R909 wattage draw at the wall. Here is the history and the question is at the bottom.

In my main mining Rig shelf I have the following all plugged into a multiport powerstip / surge protector which then runs through a wattage meter before going into the Wall. ALL of the following pulls consistenly 509w to 515w depending on if I run the R909s at 575mhz or 600mhz.

1 small monitor, keyboard and mouse shared via KVM.
1 HP Server powersupply with 6pin breakout board. The R909s plug into this for power via 6pin connector.
5 small external usb fans for air flow
Mining Rig#1 - I have 3 R909s running at 575mhz and 4 Compac-Fs @460mhz with attached Bitcoin merch usb fans, mining BTC on a Raspberry Pi 4 and 2 powered hubs. The R909s into one 90w Sipolar hub and the 4 Compac-Fs into another 90w Bitcoinmerch hub. (they are identical except for branding)
Mining Rig#2 - 4 newpac's @350mhz and 2 Compac-Fs @450mhz all with attached Bitcoin merch usb fans, and one Artec bendable USB Fan.

On a separate wall area I have another rig running 3 Compac-Fs @450mhz and Bitcoinmerch usb fans and one R909 @575mhz. This one the R909 is running on a 120w power brick from Bitcoinmerch that came with my first R909. I have the R909 going into a Watt meter on its own. This one started out pulling 115w and slowly increased so far to 117w.

Last week I purchased a 5th r909 used from ebay. It hashes fine and is giving no problems, but I noticed that this one will start out pulling 115w from the wall but will slowly keep creeping up. I let it hash for 2 hours and it had creeped up to 132w. I found that odd given the power strip was supposed to be 120w. I grabbed another power brick i had that came with another R909 I got off of ebay and it too was supposed to be 120w, but may only be 100w (not clear on the back), but the same thing it creeped up to 125w in about an hour before I shut it down.

Then added this 5th R909 to Rig #2 on the main shelf at the top that pulls a consistent 509w - 515w normally and it jumped to 625w and started climbing. It got to 660w after about 5 hours and again I powered that one down just to be safe.

Any idea what would make the wattage use creep up like that?

EDIT: It looks like I may have solved the by backing off of the blue dial by 30% counter clockwise. The R909 wattage has been stable at approx 113.8 since. It does fluctuate up or down one or two watts sometimes but nothing like it was.

Valnurat

full member

Activity: 167

Merit: 100

I'm sorry. I have been away from this site for a long time. Embarrassed

I do hope if you can answer if this is still a good device istead of the Compact F.

Br

n0nce

hero member

Activity: 924

Merit: 5943

not your keys, not your coins!

I just posted my in-depth review here, for anyone interested:

Quote from: n0nce on December 27, 2023, 02:05:58 PM

GekkoScience Terminus R909 Review
[...]

saeshtoshi

newbie

Activity: 1

Merit: 1

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

and it seemed to be stable for an hour... just to then slow down again... Cry

In the end their Team-Sweet-Spot is at 600 Mhz at around 4.5 - 4.6 TH/s average stable... until now...

Code:


 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

Code:


 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

hope this plays out to be stable Cheesy

any suggestions how to tune the second device... I am not sure where the WU should be "at least"..:? Huh

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)

Code:

 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!

bigdaddymccarron

member

Activity: 71

Merit: 20

Got my first R909 today, love it! Nice work Sidehack!

kano

legendary

Activity: 4634

Merit: 1851

Linux since 1997 RedHat 4

Quote from: ?? on ??

Most R909 wont run at 100% if you push the clock speed.

Spamming threads to get post counts ...

Anyway, no, they will get 100% is you push the clock speed ... up to a point ...

os2sam

legendary

Activity: 3586

Merit: 1098

Think for yourself

Well, I guess after you try a new USB cable, you need to contact the dealer you bought it from.

aniplex

newbie

Activity: 6

Merit: 0

Quote from: os2sam on October 04, 2023, 02:58:24 PM

Quote from: aniplex on October 04, 2023, 02:00:10 PM

Quote from: os2sam on October 04, 2023, 01:20:55 PM

Did you install the WinUSB driver?

are you refering to zadig to install winusb to the device? if so zadig doesnt detect the device as connected so no ive not installed it.

Yes, I'm referring to using Zadig to install the WinUSB driver. So if the device isn't being recognized then you must have bad hardware somewhere, miner, PC, cable, Power Supply, ...

thanks, ive tried 2 different pcs so doubt thats its. it does power up fans and lights so not sure about power supply. it has 3 lights it looks like on the mb only themiddle lite comes on. looks white or pinkish. not sure if that helps. so probably a dud miner ill try another cable but never heard of these going bad unless extreme useage.

os2sam

legendary

Activity: 3586

Merit: 1098

Think for yourself

Quote from: aniplex on October 04, 2023, 02:00:10 PM

Quote from: os2sam on October 04, 2023, 01:20:55 PM

Did you install the WinUSB driver?

are you refering to zadig to install winusb to the device? if so zadig doesnt detect the device as connected so no ive not installed it.

Yes, I'm referring to using Zadig to install the WinUSB driver. So if the device isn't being recognized then you must have bad hardware somewhere, miner, PC, cable, Power Supply, ...

os2sam

legendary

Activity: 3586

Merit: 1098

Think for yourself

Well, you have to get that done, it's not optional.

aniplex

newbie

Activity: 6

Merit: 0

Quote from: os2sam on October 04, 2023, 01:20:55 PM

Did you install the WinUSB driver?

are you refering to zadig to install winusb to the device? if so zadig doesnt detect the device as connected so no ive not installed it.

os2sam

legendary

Activity: 3586

Merit: 1098

Think for yourself

Did you install the WinUSB driver?

aniplex

newbie

Activity: 6

Merit: 0

how do you get the R909 to work? Ive tried on windows10 and windows 11

Device not detected at all. so its not connecting as an unreconize device it just not connecting at all. have tried multiple ports ect as well. It powers on so guessing the power is good, maybe usb cable? never heard of them being bad, dont think ive come across 1 my whole life that was bad lol.

n0nce

hero member

Activity: 924

Merit: 5943

not your keys, not your coins!

Quote from: sidehack on November 26, 2022, 03:19:26 AM

The miner is guaranteed to run at 1.5TH from under 100 DC watts at stock voltage and do it nearly silently. Better performance isn't guaranteed, but is probably attainable. Take for example the test unit I had running 1.8TH at 70 watts, or the above-photographed machine which pulled down almost 2.1TH from 88 watts (on stock voltage, no voltage tuning) for over a week:

I finally got around to doing some power testing on my unit and I'm really impressed. After having owned a Futurebit Apollo that operated at about 200W, I was looking forward to the R909's sub-100W rating.

But in practice, it's even lower! Shocked

I haven't fiddled a lot with voltages, and I'm getting about 1.88TH/s with <85W at the wall (including power for the Raspberry Pi)! I'm using an old Seasonic Gold rated PC power supply that's not even at peak efficiency, since it's rated for 450W.
Without cgminer running, my meter was reading about 12W, actually. So if you're running cgminer on some sort of homeserver that you have up & running 24/7 anyway, you can save another 10W.

For one R909, a ~120W PSU would probably be perfect efficiency-wise (they are made to peak at about 80% load).

This makes it really viable to even do lottery mining in central EU where we pay on average about 30 cents per kWh. Basically, this unit will cost you under 20€ in electricity per month. Or, of course, you can go with a pool as well. cgminer runs quite stable for me on a Raspberry Pi, connected to kanopool. I will write a small guide for that soon.

Quote from: https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Electricity_price_statistics#Electricity_prices_for_household_consumers

The EU average price in the second half of 2022 — a weighted average using the most recent (2022, semester 2) data for electricity by household consumers — was €0.2840 per KWh.

yettihead

newbie

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Merit: 1

Quote from: maddhy on April 15, 2023, 11:59:40 AM

Hello! I recently moved homes and today at my new place when I tried to run my R909, unfortunately, it shows 0 chips found. I guess something went wrong during shipping.

Anyway, I just dissembled everything. When it's connected to the power cable but without running the CGminer, Chip '1', '2' and '5' (which are on the same side) are hot while the other 3 chips are cold. I wonder in idle, should all chips be hot or cold? and what could possibly cause this ''half hot, half cold'' scenario? Many thanks!

Picture of the dissembled board: https://www.dropbox.com/s/ctkr7t50n6vdski/PXL_20230415_164621233.jpg?dl=0

Did you ever find a solution for this? One of my R909 is displaying the 0 chips found this morning. It has been running fine since I purchased it at the beginning of this year.

Topic: GekkoScience has a new pod miner, just in time for Christmas (Read 6954 times)