GekkoScience Terminus R808 Miner Official Support Thread

[sidehack]

Ah, okay, so it's one of those. I had something like nine units in the warranty stack and two of them, try as I might I couldn't get them to fail.

Send it back, I'll ship you a new one post-haste and then I can take my time torturing that one out of its current Schrodingerian state and into something solidly dead or alive.

[Biodom]

I've used to make 17,000 2Pacs with pretty fair reliability.

17K? Wow. That's getting close to a mass market.
I recall that that there were only about 1-2K of the original stick (Compac, single chip), but maybe more were made later.

[sidehack]

We made something like 3700 Compacs, I think. Have to check the serial numbers file for an actual count but I remember doing three batches of 1000 and I think a 750 batch. Bitshopper also made 800 in Germany by licensing the design.

We've exceeded 14,500 regular 2Pacs passed testing (including seconds), and something like 2200 Bitshopper sticks, so it's in the neighborhood of 17K 2Pacs all told. That's just the ones that made it through testing; I have stacks of a few hundred (not a high percentage, but even 3% of 17K is 500) that couldn't pass Seconds testing and are awaiting brain surgery, so a lot more have been assembled than have actually been shipped.

And more to be made. We started on a Bitshopper restock this morning, and will start a fresh batch of green sticks end of next week, so that's at least 3000 more; we should break 20K with this guy, which is frankly quite exciting.

[avulsionist]

If it helps the unit that works fine is V0.4.2 and the one with trouble is V0.4.3

[spazzdla]

Does anyone have a download with the .bat file and all the pre-reqs in it?

[sidehack]

What .bat file? .bat file for what?

[spazzdla]

Does one not need the startmining.bat file?  Or do you just run the .exe now?

[sidehack]

You've always just run the .exe, with your parameters. Or create your own .bat file, with your parameters. Downloading someone else's pre-created startup file has never been a requirement.

[spazzdla]

You've always just run the .exe, with your parameters. Or create your own .bat file, with your parameters. Downloading someone else's pre-created startup file has never been a requirement.

oooh I get it now lol, my bad, thanks.  I make text file and change extension.

[SuperFly2224]

First, I would like to say thanks to all the contributors of the forum.

I am a new member however, I have been lurking for a little while and only recently decided to "Join" with an account.

Anyways from this thread I bought a Terminus and started down the road to getting it running on one of my R-Pi's that I had from other projects. I successfully got everything running about 3 days ago and has been Hashing the whole time at about 45-55 ghs. However last night it stopped hashing and the white LED's on the unit started flashing constantly in about 3-second intervals and does not hash. Additionally, CG-Miner says that it doesn't detect any chips.

Early in this thread, it was mentioned that the flashing was likely a hardware issue and that it may need to be returned, but this happened after only 3 days with no changes.
While I know I am considered a "Noob", any help anyone can provide in resolving this issue would be helpful.

https://imgur.com/g9nj0JK

Thx, SF

Edit: added image

[avulsionist]

Good news!
Unit one is running at 250MHz and averaging 134.4G to 136.gG like a champ. I noticed that the fans will idle down and up again.

Is it possible to set the fan to run max all the time?

Unit two is now running stable at 200MHz. The resets only happen after the cores go up to 225MHz and the fan RPMs kick up a notch.

[DM2008]

I know that the (optional) bundled bricks are --rated-- at 6A, but what are people finding for an actual usable rating?

I've got 2 pods up and running. I started them off with the default settings in cgminer and they ran with no issues for a day at 200MHz.  At that point I decided to see if they would go a little higher so I upped it to 225MHz.  As soon as it ramped up to 225MHz one pod dropped back to 200MHz and would repeat going up and down.  The second pod followed a little after.  Thinking it might be the tipping point of the power supply, I tried lowering the voltage adjustment.  Dropping it slightly allowed both pods to run at 225MHz and that was the highest they would go.

[sidehack]

Could be you're bumping up against current/heat limits of the pod's main regulator.

[avulsionist]

Could be you're bumping up against current/heat limits of the pod's main regulator.

The more fans I added the faster I could go. Stable at 225 on the slower one now with ventilation and fan. Any way to have the onboard fans spin Max rpm all the time?

[sidehack]

Yeah, arbitrarily heat the temp sensor to at least 60C. If the fans aren't running full speed it's because it's not hot enough to need to do so.

The main regulator isn't directly cooled by those fans anyway so that shouldn't change much.

Also how are you getting over 130GH average when 250MHz peaks at 110GH? And then the fans idle down? That only happens when it's cold, and if it's cold it's not hashing at 120% theoretical max.

I think something is wrong because too much of what you're saying you're seeing doesn't make sense.

[avulsionist]

Yeah, arbitrarily heat the temp sensor to at least 60C. If the fans aren't running full speed it's because it's not hot enough to need to do so.

The main regulator isn't directly cooled by those fans anyway so that shouldn't change much.

Also how are you getting over 130GH average when 250MHz peaks at 110GH? And then the fans idle down? That only happens when it's cold, and if it's cold it's not hashing at 120% theoretical max.

I think something is wrong because too much of what you're saying you're seeing doesn't make sense.

Sorry about being unclear. I am just going by what cgminer is outputting. What would help debug why one is having trouble over 200MHz?

I have had one running off a Pi at 250MHz for the last 15 hours that is now at an average of 82.45Gh/s but has 411 HW errors. No resets, still 0 GSE.
This is the one that was idling down the fan. I watched the CGminer output for a while last night but didn't see any correlation between the work/difficulty or pool when it happened. Yeah, should not happen as they are still hot and hashing. The auditory pitch change from fast to slow sounds like slower than when the unit is idle. Is fan speed output on any debug channel?

The other is running stable at 200MHz for the 15 hours off another Pi and 3 2pac.
This one can sometime get stable at 225MHz but has a lot of HW errors.

I am happy to help in any way.

EDIT: to note that I just noticed the cgminer output on the pi with one R808 is reporting COMPAC-6 now.
Here is a screen shot
https://imgur.com/mVJ6xuA

[mwin58747]

I know that the (optional) bundled bricks are --rated-- at 6A, but what are people finding for an actual usable rating?

I've got 2 pods up and running. I started them off with the default settings in cgminer and they ran with no issues for a day at 200MHz.  At that point I decided to see if they would go a little higher so I upped it to 225MHz.  As soon as it ramped up to 225MHz one pod dropped back to 200MHz and would repeat going up and down.  The second pod followed a little after.  Thinking it might be the tipping point of the power supply, I tried lowering the voltage adjustment.  Dropping it slightly allowed both pods to run at 225MHz and that was the highest they would go.

hello! i can run one stable at 250mhz using the bricks. if i more than one it then behaves like your one. I plug mine in a power strip that says rated 10A so in my head i just accepted the fact that i wont be able to run 2 pods off of one strip.

[sidehack]

Except that you forgot the difference between "power" and "current".

[mwin58747]

wait so i should be able to in paper? i honestly dont know electronics.

*edit: added in paper

[sidehack]

Well you see, your 10A power strip will handle 10A at 120V

But the power brick is outputting up to 6A at 12V. If you check the input specs, it's less than 1A at 120V.

Which means not only can you run more than one, you can run about a dozen.

Take a quick look at the formulas behind electrical power for a better "why".