KnCMiner Jupiter Miner First Impressions

[sickpig]

i have the same problem
with you?

what we can do?

check if internal fun are correctly mounted.

which firmware you have?

0.94

when i install 0.94 firmware is total dead the chip
when install 0.91 work at 75%

good to know. with 0.94 I get an overall 4-5% increase in performance. before I tried both .92/.93 but no luck since cgminer restart every few seconds.

unluckily I don't have data point for 0.91 since I wasn't aware of bertmod :/

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[jelin1984]

i check all the connectors everything

something is do with firmware
or with chip board

how is your hashing?
you have 2 good and 1 faulty or not?

[sickpig]

i check all the connectors everything

something is do with firmware
or with chip board

dunno could be a faulty chip board dunno. tomorrow once I'll apply mods to airflow I'll report back

anyway for each of my jups:

3 out of 4 asic are ok, the other one has only 3 die out of 4 working so 75% perf.

how is your hashing?
you have 2 good and 1 faulty or not?

(5s):509.4G (avg):496.7Gh/s



 

[jelin1984]

you mean

3 jupiter
and the 3 jupiter  have these faulty?

or only 1 jupiter is faulty?

[sickpig]

you mean

3 jupiter
and the 3 jupiter  have these faulty?

or only 1 jupiter is faulty?

I have two jups.

Every jups has 4 ASIC board.

Every ASIC board have 4 dies.

Every Die has 48 cores.

Both jups have the same problem.

3 out of 4 ASIC work almost at full capacity.

the 4th works at 75%, because 1 out of 4 die has all of its cores disabled.

[jelin1984]

UNDERSTAND

I THINK FINAL

that maybe not damaged chips

maybe wrong firmware

maybe not of course

[sickpig]

UNDERSTAND

I THINK FINAL

that maybe not damaged chips

maybe wrong firmware

maybe not of course

[Xialla]

last 24 hours:

[Sitarow]

Okay just completed my final run of tests in order to put one of my suspicions to rest.

It seems that firmware v0.9.4 is highly temperature sensitive. For the last 3hrs I raised the ambient room temperature to 25 degrees celsius in the room.

What I notice is that the processor temps themselves remain low however the unit starts to slow down and the power draw at the wall also goes down.

It stabilized at 535 watts and the performance dropped down under 510 GH/s.

I will provide the screenshots of the details below. If you take the numbers from the last time I updated you and correlate it to the numbers I am going to give you. You will see the results for yourself.

Straight away you notice the hardware error % went up rather than down.

Again this is just the case off the unit with the house fan pointing down on it with the exception that I raised the ambient room temp to 25 degrees celsius.

Firmware v0.9.4 results after 36 hours no cgminer stall or restart.




36 hour results


37 hour results


In conclusion, the results help support my suspicion that the components on the board were overheating is indeed correct. Based on the results I can say with certainty the components on the boards themselves are overheating. It may very well be the VRM's.

Increasing the airflow in and out of the case will not be the only needed steps to resolve the issue. One will need to also provide additional heatsinks on the troubled components in order to maintain an operating performance above 530 GH/s.

EDIT:

I will revert the unit back to firmware 0.9.0 to see if providing adequate cooling will increase the overall performance beyond 540+ that I was getting.

Instead I will just see if changing the intake fans to a higher CFM model will help.

[sickpig]

do you already try to change the front funs with the avalon type?

[Sitarow]

do you already try to change the front funs with the avalon type?

I had to make the tests that would tell me what the culprit to the performance hit is.

Very well.

I may as well do that first before attempting to see what the max performance from this unit would be using firmware v0.9.0 and adequate air movement along with a low temp environment.

[sickpig]

do you already try to change the front funs with the avalon type?

I had to make the tests that would tell me what the culprit to the performance hit is.

Very well.

I may as well do that first before attempting to see what the max performance from this unit would be using firmware v0.9.0 and adequate air movement along with a low temp environment.

thanks Sitarow your effort is very valuable!

[Tigggger]

sitarow, can I ask what you are using to produce that stats image, looks good.

[sickpig]

sitarow, can I ask what you are using to produce that stats image, looks good.

kano said he's "hosting" the app that produce those stats

[Sitarow]

sitarow, can I ask what you are using to produce that stats image, looks good.

kano said he's "hosting" the app that produce those stats

Yes and you can read about setting it up on the cgminer documentation under miner.php

[jelin1984]

Where I can find Kano. App for knc miners?

[Tigggger]

sitarow, can I ask what you are using to produce that stats image, looks good.

Yes and you can read about setting it up on the cgminer documentation under miner.php

Ah didn't realise it was the built in one, don't recall seeing a screenshot of it before.

Thanks

[jelin1984]

Ok what exactly do the Kano patch or firmware?
Make fix the off core at ASIC chips?

[Sitarow]

Ok what exactly do the Kano patch or firmware?
Make fix the off core at ASIC chips?

Kano is of of the persons that volunteers on the cgminer project.

You do not need him to setup this. However you do need to modify the miner.php file that comes with cgminer and host it on a server. Then in the cgminer.conf file you will have to adjust the jupiters settings under the api line.

..................

[Sitarow]

I have lowered the ambient room temperature back down to under 17 degrees celsius/62 degrees fahrenheit.

It seems that firmware v0.9.4 does not turn back on what it may have turned off. I will wait a few more hours at this ambient temperature to see if the GH/s and wattage goes back up automatically without restarting cgminer.

Would be nice if the KnCminer software dev's would just tell me if that was in the code Oh well.

Here is the core temps and details at room ambient temperature of 25 degrees celsius with case off and fan on.

ASIC Board   Info
0   
Temperature sensor: 43.0 C

Die ID   Cores ON   Cores OFF   %
0   48   0   100
1   48   0   100
2   48   0   100
3   48   0   100
DC/DC ID   ON/OFF   Status   Input Voltage   Output Voltage   Output Current
0   ON   OK   12.2 V   0.742 V   36.8 A (27.3 W)
1   OFF   OFF   12.1 V   0.701 V   0 A
2   ON   OK   12.1 V   0.754 V   38.7 A (29.2 W)
3   OFF   OFF   12.2 V   0.729 V   0 A
4   ON   OK   12.1 V   0.74 V   38.2 A (28.3 W)
5   OFF   OFF   12.2 V   0.716 V   0 A
6   OFF   OFF   12.1 V   0.751 V   0 A
7   ON   OK   12.2 V   0.753 V   37.2 A (28 W)
1   
Temperature sensor: 34.5 C

Die ID   Cores ON   Cores OFF   %
0   48   0   100
1   48   0   100
2   48   0   100
3   48   0   100
DC/DC ID   ON/OFF   Status   Input Voltage   Output Voltage   Output Current
0   ON   OK   12.2 V   0.737 V   37.3 A (27.5 W)
1   OFF   OFF   12.2 V   0.714 V   0 A
2   ON   OK   12.1 V   0.733 V   37.4 A (27.4 W)
3   OFF   OFF   12.1 V   0.734 V   0 A
4   ON   OK   12.2 V   0.875 V   0.438 A
5   OFF   OFF   12.1 V   0.88 V   0 A
6   OFF   OFF   12.2 V   0.738 V   0 A
7   ON   OK   12.2 V   0.718 V   38.6 A (27.7 W)
2   
Temperature sensor: 33.5 C

Die ID   Cores ON   Cores OFF   %
0   48   0   100
1   48   0   100
2   48   0   100
3   46   2   95.8
DC/DC ID   ON/OFF   Status   Input Voltage   Output Voltage   Output Current
0   ON   OK   12.2 V   0.738 V   37.4 A (27.6 W)
1   OFF   OFF   12.1 V   0.706 V   0 A
2   ON   OK   12.2 V   0.756 V   38.9 A (29.4 W)
3   OFF   OFF   12.1 V   0.735 V   0 A
4   ON   OK   12.2 V   0.745 V   38.8 A (28.9 W)
5   OFF   OFF   12.1 V   0.724 V   0 A
6   OFF   OFF   12.1 V   0.739 V   0 A
7   ON   OK   12.2 V   0.755 V   39.3 A (29.7 W)
3   
Temperature sensor: 34.5 C

Die ID   Cores ON   Cores OFF   %
0   48   0   100
1   48   0   100
2   40   8   83.3
3   47   1   97.9
DC/DC ID   ON/OFF   Status   Input Voltage   Output Voltage   Output Current
0   ON   OK   12.2 V   0.735 V   37 A (27.2 W)
1   OFF   OFF   12.2 V   0.692 V   0 A
2   ON   OK   12.2 V   0.763 V   38.1 A (29.1 W)
3   OFF   OFF   12.2 V   0.743 V   0 A
4   ON   OK   12.1 V   0.744 V   35.8 A (26.6 W)
5   OFF   OFF   12.2 V   0.723 V   0 A
6   OFF   OFF   12.1 V   0.756 V   0 A
7   ON   OK   12.2 V   0.756 V   38.4 A (29 W)
Total DC/DC power output: 422 W