DragonMint T1 16TH/S halongmining.com

[-ck]

@BlockTangle

By the way, do you realise the fact that the Halong/MyRig 1600W power supply units do not work in the 110-120V mains voltage systems ?

Hagg, per the HM website in the FAQ's:

"Q. I have 110v supply at home, is this suitable?
A. Not really. Miners operate more efficiently with 220-240v and mining farms step down their own electricity supply to 220-240v. If you have 110v supply you will either need to purchase a 1600W PSU rated for 110v from an alternative source, use two of our 1600W PSUs for each miner, or arrange the voltage supply."

I bought 2 PSUs per miner (5 miners and 10 PSUs). Would 2 HM PSUs per miner do the trick?

Thank you!

If they say that two Halong Mining psus will do the job, then it should be ok.

I haven't seen the technical specifications label for the Halong Mining psu.

That's an odd recommendation. The power rails are connected between the chains so you'd end up having two PSUs connected to the one rail; most PSUs don't like you doing that to them...

[HagssFIN]

No, it's not if you know what you are doing.
All three hash boards have a separate power input.
You power one hash board and controller board with the first psu.
You power two hash boards with the second psu.

And it is not my recommendation.

This is my recommendation.
Just get rid of using the fucking 110V mains voltage and have an 220V outlet circuit installed.
And buy only one good PSU.

[-ck]

No, it's not if you know what you are doing.
All three hash boards have a separate power input.
You power one hash board and controller board with the first psu.
You power two hash boards with the second psu.

And it is not my recommendation.

This is my recommendation.
Just get rid of using the fucking 110V mains voltage and have an 220V outlet circuit installed.
And buy only one good PSU.

I did not say it was your recommendation, I saw it was Halong's. Yours makes much more sense though...

[HagssFIN]

Oh, whoops. My brainfart.

[MyRig]

DragonMint Update:

Preparing for a bit more timely exchange process to include customers who paid direct to HalongMining.com for April order.

[Kimu]

I pushed a more conservative firmware update this time with a slightly lower speed for balanced mode due to complaints of high power and fanspeeds from those entering summer, and more tightly controlled temperatures for optimal minimum fanspeed.

It should be version t1_20180512_024327 if you check for an update from the web interface.

Running fine for 19hours now

[-ck]

I pushed a more conservative firmware update this time with a slightly lower speed for balanced mode due to complaints of high power and fanspeeds from those entering summer, and more tightly controlled temperatures for optimal minimum fanspeed.

It should be version t1_20180512_024327 if you check for an update from the web interface.

Running fine for 19hours now

Great, thanks for the feedback

[RoadStress]

Great, thanks for the feedback

Thank you too for the code!

[Kimu]

I noticed something else.
~2 hours after a reboot. Hashrate drops ~10%.
This happens every time.

I am talking about both hashrate readings : on DT gui and on slush dashboard

Not sure how I can provide proof, logs or anything that can help

[-ck]

I noticed something else.
~2 hours after a reboot. Hashrate drops ~10%.
This happens every time.

I am talking about both hashrate readings : on DT gui and on slush dashboard

Not sure how I can provide proof, logs or anything that can help

Are fans below 100% ?

[Kimu]

Are fans below 100% ?

Yes, around 45% and balanced mode

[-ck]

Yes, around 45% and balanced mode

Here, try this one:
http://ck.kolivas.org/temp/t1_20180515_060842.swu
It may be that increasing diff somehow leads to lowering of observable hashrate; this one won't change diff.

[Kimu]

Here, try this one:
http://ck.kolivas.org/temp/t1_20180515_060842.swu
It may be that increasing diff somehow leads to lowering of observable hashrate; this one won't change diff.

No need to autotune after update right ?

[-ck]

Yes, around 45% and balanced mode

Here, try this one:
http://ck.kolivas.org/temp/t1_20180515_060842.swu
It may be that increasing diff somehow leads to lowering of observable hashrate; this one won't change diff.

No need to autotune after update right ?

Right, just let it run with existing tuning.

[Kimu]

Right, just let it run with existing tuning.

Thanks.
Updated. Will keep you in touch

[Kimu]

Ok here some results:
Here you can see post update hashrate history.
I deployed the firmware just before 08:00
https://m.imgur.com/a/vKNpv6Z

And now after 10hours running the new firmware.
https://m.imgur.com/a/A28N6St

I don't notice the 2 hours hashrate drop anymore.
The hashrate even seems to increase a bit.

But it seems to run hotter, fans are running at 10% more than before for the same temps 73-75°C

[-ck]

Ok here some results:
Here you can see post update hashrate history.
I deployed the firmware just before 08:00
https://m.imgur.com/a/vKNpv6Z

And now after 10hours running the new firmware.
https://m.imgur.com/a/A28N6St

I don't notice the 2 hours hashrate drop anymore.
The hashrate even seems to increase a bit.


But it seems to run hotter, fans are running at 10% more than before for the same temps 73-75°C




 

That is odd, but it does look significant. I guess you can't have extra hashrate without extra heat, but it does imply something funky going on internally if the hashrate changes depending on the diff the hardware is running at. Either way, keep running the faster firmware to confirm it remains reliable for days and I can push that firmware as official. Thanks for testing.

[Kimu]

That is odd, but it does look significant. I guess you can't have extra hashrate without extra heat, but it does imply something funky going on internally if the hashrate changes depending on the diff the hardware is running at. Either way, keep running the faster firmware to confirm it remains reliable for days and I can push that firmware as official. Thanks for testing.

Sure, Will do.
Here is another 12hours round of hashrate:
https://imgur.com/a/PVfzTcf

[-ck]

Sure, Will do.
Here is another 12hours round of hashrate:
https://imgur.com/a/PVfzTcf

Well I'd say that's very good. I'm going to ship it. Thanks for the feedback.

[Kimu]

Well I'd say that's very good. I'm going to ship it. Thanks for the feedback.

I'd still have to check power consumption.
Not able to do that till Friday.

Before that firmware it was pulling ~1520w