GekkoScience Terminus R808 Miner Official Support Thread - page 11.

minerbobbert

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Quote from: flippintwit on March 17, 2018, 05:48:19 PM

Quote from: sidehack on February 26, 2018, 08:19:53 PM

I bet if you only run 2 you'll get the full hashrate out of 'em. Could be a USB traffic limitation, same as several other people are running into.

Just a question I've been thinking about. Would increasing the suggest-diff setting alleviate some of the USB traffic limitations? I was just thinking, why does everyone it seems, that have posted so far, been running with really low diff? I generally run my 2pacs at 512 aiming for 2-3 Accepteds per minute, or am I doing it wrong.

This is a really interesting question. For solo mining, it wouldn't even make a difference. I use ck's pools, and his pool automatically adjusts the difficulty to match the miner. Whether that impacts shares is the larger question. The USB limit is my main issue now. If this is a good workaround I'd love to know.

sunk818

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Quote from: QuarterMaster on March 19, 2018, 05:25:21 PM

Going to guess you are running on windows?

Windows 10 64-bit Home.

I've used shares before to quit cgminer in a batch file and loop it to restart after it quits. Say 500,000 acceptable shares then timeout for 300 seconds then start again.

--shares Quit after mining N shares (default: unlimited)

I have a lot of respect for what @sidehack and @vh do. It is almost magic to me what they can do in terms of hardware and driver/cgminer software programming. I'm just guessing it is some sort of memory or CPU load issue and haven't fully isolated it. Just asking if anyone here has experienced the same. If so, it is worth investigating and isolating so we can report it for a solution. The workaround of restarting is not a bad hack, but it isn't a good long-term solution.

mwin58747

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Activity: 22

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Quote from: sunk818 on March 16, 2018, 11:19:51 AM

How would I run multiple Terminus R808 using the one power supply?

You would need a breakout board and 6pin to 6pin power cables. one 750 watt power supply would be enough to run around 10 - 11 Pods around 225Mhz (60 watts each)
[/quote]

can i get any server psu with any breakout board?

like this one

https://www.trademe.co.nz/computers/servers/server-components/auction-1572077787.htm?rsqid=ccd32e372c7e422c9f4b671e6bf90994

and maybe this one

https://www.parallelminer.com/product/x7-breakout-board-adapter-compatible-with-hp-750w-1200w1500watt-hp-power-supply/

QuarterMaster

newbie

Activity: 28

Merit: 2

Quote from: sunk818 on March 19, 2018, 04:38:24 PM

Is anyone having cgminer 4.10 cpu load go way up? If I leave it on for 12 hours or more, CPU pegs at 75%. I have 10 2Pac Gekko & 1 Termins R808 running.

Going back to Apr 2017 version of cgminer 4.10 I don't have this issue.

Memory leak perhaps?

Going to guess you are running on windows?

I run 4 CGMiner windows (latest build) with different groups of USB sticks/pods so I can monitor them as workers with Slushpool.
About 2k memory per instance and 00-04% CPU load each, running on Server 2008R2. I do have a schedule batch file to kill all CGMiners and restart every hour though so not the best "always on" candidate here. The restart fixes the random USB stick that might have quit working.

You are running the same as me minus 1 pod. I have 10 x 2pac and 2 x Terminus.
Let me know if you want me to help with the batch files for killing / restarting.

sunk818

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Is anyone having cgminer 4.10 cpu load go way up? If I leave it on for 12 hours or more, CPU pegs at 75%. I have 10 2Pac Gekko & 1 Terminus R808 running.

Going back to Apr 2017 version of cgminer 4.10 I don't have this issue. Memory leak perhaps? At least with Apr 2017, I can run it reliably for many days. Only problem is that if Terminus goes Zombie, I have to restart it manually. Trade offs. Sad

mwin58747

newbie

Activity: 22

Merit: 0

Hi! is it to be expected that i wouldn't be able to 2 pods off of one regular power strip (rated at 10A as it says on the bottom)

i did some googling and 60w = 5 amps so that will be 10 amps already without the hub and the controller (laptop)

it will confirm how i am able to run them stable plugged in directly to the wall (separate) but not together on one strip

thanks!

QuarterMaster

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Activity: 28

Merit: 2

Quote from: sidehack on March 16, 2018, 01:39:16 PM

I got plenty, and you know how to get 'em.

Thanks. Laura got back to me so picking up a couple more.

goose1072

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Activity: 235

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Quote from: flippintwit on March 17, 2018, 05:48:19 PM

Quote from: sidehack on February 26, 2018, 08:19:53 PM

I bet if you only run 2 you'll get the full hashrate out of 'em. Could be a USB traffic limitation, same as several other people are running into.

Just a question I've been thinking about. Would increasing the suggest-diff setting alleviate some of the USB traffic limitations? I was just thinking, why does everyone it seems, that have posted so far, been running with really low diff? I generally run my 2pacs at 512 aiming for 2-3 Accepteds per minute, or am I doing it wrong.

The Diff depends on what you are mining, I am currently mining BT Cash and that is why it's lower.

flippintwit

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Activity: 62

Merit: 10

Quote from: sidehack on February 26, 2018, 08:19:53 PM

I bet if you only run 2 you'll get the full hashrate out of 'em. Could be a USB traffic limitation, same as several other people are running into.

Just a question I've been thinking about. Would increasing the suggest-diff setting alleviate some of the USB traffic limitations? I was just thinking, why does everyone it seems, that have posted so far, been running with really low diff? I generally run my 2pacs at 512 aiming for 2-3 Accepteds per minute, or am I doing it wrong.

sidehack

legendary

Activity: 3374

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Curmudgeonly hardware guy

I got plenty, and you know how to get 'em.

QuarterMaster

newbie

Activity: 28

Merit: 2

Quick comparison - Terminus R808 vs 2 Pac Sticks - Power usage.

It may be the power supplies I am using but the comparison is:

1 x Pod @ 237.50 Mhz -
58.6 Watts
100-104 Gh/s

4 x 2Pac @ 237.50 Mhz
74 Watts
98-106 Gh/s

I run 10 2Pacs but am thinking . . . . More Pods Please!

QuarterMaster

newbie

Activity: 28

Merit: 2

Quote from: sunk818 on March 16, 2018, 11:19:51 AM

Quote from: 419mining on March 16, 2018, 08:53:06 AM

But even so, then just jump to a 750Watt, its still the same common slot power supply, still under $40 https://www.amazon.com/HP-599383-001-Common-Platinum-Supply/dp/B00719064I/

How is the noise on the power supply fan?

How would I run multiple Terminus R808 using the one power supply?

I tried running stock at 300Mhz, and it kept downclocking to 200Mhz and moving between 200-300Mhz. I seem to get more stable hash rate (~85GH/s) leaving it at 200Mhz.

Depends on how many you want to run. You could run 2 off of this with no noise from the Power Supply with some good efficiency.
https://www.amazon.com/dp/B06XRBN2L3/ref=twister_B0753BTC3Z?_encoding=UTF8&psc=1

I would also grab some of the PCIe connectors. Much better power connection than the barrel connector.
https://www.amazon.com/gp/product/B01M7WO63I/ref=oh_aui_detailpage_o02_s02?ie=UTF8&psc=1

Here is a pic of two hooked up to mine and minimal noise really from the pods.
http://preview.ibb.co/mp50xx/Term_Power_Supply.jpg

QuarterMaster

newbie

Activity: 28

Merit: 2

Quote from: sidehack on March 16, 2018, 11:30:12 AM

I've never successfully run one above 275MHz, and I built the thing. 300MHz, unless you get lucky with the chips and can tweak the voltage down (or keep that regulator module cold), is probably unattainable.

If you see an unexpected drop to 200MHz that means the string locked up and reset, which took the chips back to default speed and cgminer started ramping it back up to your setpoint.

Thanks for that and kind of figured that's what was going on. So far the 237.50 Mhz is very stable and produces 100-104Gh/s all day with a good power supply and doesn't get too hot. I've never seen 275Mhz on mine but don't need to either. Wink

419mining

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https://www.419mining.com

Quote from: sunk818 on March 16, 2018, 11:19:51 AM

How is the noise on the power supply fan?

Its a server power supply so the fan can get rather noisy but its not going to as loud as say 10 Terminus miners running.

Quote from: sunk818 on March 16, 2018, 11:19:51 AM

How would I run multiple Terminus R808 using the one power supply?

You would need a breakout board and 6pin to 6pin power cables. one 750 watt power supply would be enough to run around 10 - 11 Pods around 225Mhz (60 watts each)

sunk818

full member

Activity: 1176

Merit: 111

Quote from: sidehack on March 16, 2018, 11:30:12 AM

If you see an unexpected drop to 200MHz that means the string locked up and reset, which took the chips back to default speed and cgminer started ramping it back up to your setpoint.

Thx for the explanation. I like these Terminus R808, I want to sell all my 2Pacs and buy these with the money! Wink

sidehack

legendary

Activity: 3374

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Curmudgeonly hardware guy

I've never successfully run one above 275MHz, and I built the thing. 300MHz, unless you get lucky with the chips and can tweak the voltage down (or keep that regulator module cold), is probably unattainable.

If you see an unexpected drop to 200MHz that means the string locked up and reset, which took the chips back to default speed and cgminer started ramping it back up to your setpoint.

sunk818

full member

Activity: 1176

Merit: 111

Quote from: 419mining on March 16, 2018, 08:53:06 AM

But even so, then just jump to a 750Watt, its still the same common slot power supply, still under $40 https://www.amazon.com/HP-599383-001-Common-Platinum-Supply/dp/B00719064I/

How is the noise on the power supply fan?

How would I run multiple Terminus R808 using the one power supply?

I tried running stock at 300Mhz, and it kept downclocking to 200Mhz and moving between 200-300Mhz. I seem to get more stable hash rate (~85GH/s) leaving it at 200Mhz.

QuarterMaster

newbie

Activity: 28

Merit: 2

Quote from: 419mining on March 16, 2018, 08:58:08 AM

ok, I just re-read your post above, so your saying your pulling 60 Watt at the wall, and getting 80% efficiency at the power brick? 60Watt -> 48watt (225Mhz)?

Close. The power brick is 72 watt at 6 amp and yeah pulling 58.4 watts per pod at 225Mhz. The 750 would run at a better efficiency for sure. I'm at 123 watt for 2 pods on a 150 watt supply but it's getting too warm so I might go higher. Good Luck and let us know how it works out.

419mining

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https://www.419mining.com

ok, I just re-read your post above, so your saying your pulling 60 Watt at the wall, and getting 80% efficiency at the power brick? 60Watt -> 48watt (225Mhz)?

419mining

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Activity: 190

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https://www.419mining.com

Wow 60 Watts? what frequency are you running at?
According to SideHack's power chart, 60 watts is 275MHz

Quote

100MHz (44GH) 660mV/node 2.64V total; 12V 1.4A for 16.8W/0.38J/GH
125MHz (55GH) 660mV/node 2.64V total; 12V 1.7A for 20.4W/0.37J/GH
150MHz (66GH) 660mV/node 2.64V total; 12V 2.0A for 24.0W/0.36J/GH
175MHz (77GH) 693mV/node 2.77V total; 12V 2.5A for 30.0W/0.39J/GH
200MHz (88GH) 715mV/node 2.86V total; 12V 3.1A for 37.2W/0.42J/GH
225MHz (99GH) 755mV/node 3.02V total; 12V 3.8A for 45.6W/0.46J/GH
250MHz (110GH) 770mV/node 3.08V total; 12V 4.4A for 52.8W/0.48J/GH
275MHz (121GH) 770mV/node 3.08V total; 12V 4.9A for 58.8W/0.49J/GH

Ill pick up a P3 Killawatt on my way home from work tonight and see what I'm pulling per pod.

But even so, then just jump to a 750Watt, its still the same common slot power supply, still under $40
https://www.amazon.com/HP-599383-001-Common-Platinum-Supply/dp/B00719064I/

I've used the 1200Watt and Sidehacks break out board for GPU builds and AntMiners, its a solid reliable design. (those are just crazy expensive right now)

Topic: GekkoScience Terminus R808 Miner Official Support Thread - page 11. (Read 16917 times)