¤¤¤¤ gekkorun.de - Gekkoscience Fun-Run - compare your share ¤¤¤¤

[andymanone]

Here is the reference to ramping that I had seen.

########################################


I (novak) have written a cgminer driver which enumerates the compacs as expected, removes the error, and ramps up the clock slowly to prevent spikes on USB power.  My custom cgminer can be found here:
source code: gekkoscience.com/misc/cgminer-gekko.tar.gz
win32 binary: gekkoscience.com/misc/cgminer-gekko-win32.zip

novak

Ahh great,
but unfortunately I just use this version, but got the problems
Or is there a special parameter to set for get it works?

[1714830629]

1714830629

[1714830629]

1714830629

[1714830629]

1714830629

[RichBC]

Here is the reference to ramping that I had seen.

########################################


I (novak) have written a cgminer driver which enumerates the compacs as expected, removes the error, and ramps up the clock slowly to prevent spikes on USB power.  My custom cgminer can be found here:
source code: gekkoscience.com/misc/cgminer-gekko.tar.gz
win32 binary: gekkoscience.com/misc/cgminer-gekko-win32.zip

novak

Ahh great,
but unfortunately I just use this version, but got the problems
Or is there a special parameter to set for get it works?

I too am using that version and get the problems.... but just thought I would mention it. Also I wonder if the ramp is designed to prevent problems of current taken from the 5V / Hub and we are seeing problems with current taken from the Buck Converter? Although I would have thought a ramp would have helped both.

Another question is that I have read that the ramp is as long as 4 Minutes and yet my Vcore without load typically sits at 0.8V and as soon as the hashing starts properly it drops to 0.77V there is no gradual change, so am not sure I am seeing the ramp?


Either way it is worthy of further investigation or perhaps a question to novak?


Rich

[zOU]

I thought that moving my compac to my RPi would fix my problem but it didn't.

After 2 days, I can't reach my RPi on the network and I have to reboot it and restart my 6 cgminer instances.

Logs shows no error...

[andymanone]

I thought that moving my compac to my RPi would fix my problem but it didn't.

After 2 days, I can't reach my RPi on the network and I have to reboot it and restart my 6 cgminer instances.

Logs shows no error...

hmm, thats strange,
I got this similar probs with my Ant R1 @ frequencies more than 400MHz.
it stops w/o any error, i have only to restart cgminer (not the whole Antrouter R1) and it runs again..

But my Gekko runs stable @450MHz w/o any issues.
I´ve used Novak´s custom cgminer win32-Version on a Win10-System (Asus eeePC) netbook.
(The stops you can see in my stats@gekkorun are only manually )

andY

[zOU]

Yes it's strange... they're headless, so I have no choice but power off/on.
I had the problem on a gibagyte brix/Ubuntu and the rpi/raspbian.

I have a lattepanda running win10, maybe I'll give that one a go.
Although there's  more logistics as I have to relocate everything.

[andymanone]

I too am using that version and get the problems.... but just thought I would mention it. Also I wonder if the ramp is designed to prevent problems of current taken from the 5V / Hub and we are seeing problems with current taken from the Buck Converter? Although I would have thought a ramp would have helped both.

Another question is that I have read that the ramp is as long as 4 Minutes and yet my Vcore without load typically sits at 0.8V and as soon as the hashing starts properly it drops to 0.77V there is no gradual change, so am not sure I am seeing the ramp?


Either way it is worthy of further investigation or perhaps a question to novak?


Rich

Hmm, maybe it´s an idea to ask novak.

The TPS51219 is able to manage about 20A, so I think it´s not the bottleneck/reason...
But I discovered, the regulator runs suspiciously hot w/o a sufficient cooling..

---------------------------------------------------------------------------------------------------------------------------------------------
EDIT: 05-24-2016:

After thinking a while (and do a little math) , I see the TPS could be the cause anyway...

The Gekko has a power consumption about ~ 21- 22Watts@450MHz
If I deduct the power loss of all "Non-ASIC"-Components there could be finally a power consumption about 18-19Watts:

19W / 0.9V = ~ 21,1A

So I suspect very strongly, the buck-converter could be the cause anyway...
---------------------------------------------------------------------------------------------------------------------------------------------

The datasheet offers also a 1Volt and a 1.05Volt stable fixed mode.
Maybe to switch it in the 1V fixed mode could be an option,
with a little drop while running, maybe down to 0.95V it could works?


andY

[Mikestang]

Well I got my internet turned back on this weekend, but my old modem/router doesn't work anymore so I had to buy a new router.  Now I need to re-setup my home network, port forwarding, etc. etc. but I should be back to mining this week.  Woo hoo!

[andymanone]

Well I got my internet turned back on this weekend, but my old modem/router doesn't work anymore so I had to buy a new router.  Now I need to re-setup my home network, port forwarding, etc. etc. but I should be back to mining this week.  Woo hoo!

Great, welcome back !

[il0vew33d]

next one from germany

il0vew33d
DE
16WWNdm9bC4w6cTt8gsx6HN8kzypanBPwt_obelix
16WWNdm9bC4w6cTt8gsx6HN8kzypanBPwt_verleihnix



actually running @ 250mhz, passive cooling.

[edit]
added my second gekko, running @ 170mhz. this one is very unstable, please be patient
[edit]

[andymanone]

next one from germany

il0vew33d
DE
16WWNdm9bC4w6cTt8gsx6HN8kzypanBPwt_obelix


actually running @ 250mhz, passive cooling.

Great, man !

Welcome to Gekkorun!

We´ll add you asap!

andY

[il0vew33d]

next one from germany

il0vew33d
DE
16WWNdm9bC4w6cTt8gsx6HN8kzypanBPwt_obelix


actually running @ 250mhz, passive cooling.

Great, man !

Welcome to Gekkorun!

We´ll add you asap!

andY

hope, you have seen my second gekko, added just in the monent you wrote this...

[ammi84]

next one from germany

il0vew33d
DE
16WWNdm9bC4w6cTt8gsx6HN8kzypanBPwt_obelix
16WWNdm9bC4w6cTt8gsx6HN8kzypanBPwt_verleihnix



actually running @ 250mhz, passive cooling.

[edit]
added my second gekko, running @ 170mhz. this one is very unstable, please be patient
[edit]

hi
thanks for joining.
have fun here!!

[andymanone]

hope, you have seen my second gekko, added just in the monent you wrote this...

Yes, everything is fine .
Btw: Great! Finally not alone anymore !

Little hint: you can choose yourself the right clockspeed for every Runner
gekkorun.de -> scroll down -> Change your frequency:   -> insert "BTC_Worker",
choose frequency and hit Update

andY

[andymanone]

Next german Gekko-Runner is ready for the challenge now .

User: andymanone G2
Country: DE
Address: 1B654QJKEWVZZoWGTpqP5xW3M67f6zxkKd_AMGSC2

andY

[andymanone]

Next german Gekko-Runner is ready for the challenge now .

User: andymanone G2
Country: DE
Address: 1B654QJKEWVZZoWGTpqP5xW3M67f6zxkKd_AMGSC2

andY

Added...

[zOU]

I moved my 6 sticks to my lattepanda.

We'll see if I lose connection again after 2 days....

[andymanone]

https://i.imgur.com/75dY1Ee.jpg

I moved my 6 sticks to my lattepanda.

We'll see if I lose connection again after 2 days....

Looks great 
Good luck for running it w/o issues!

andY

[il0vew33d]

Little hint: you can choose yourself the right clockspeed for every Runner
gekkorun.de -> scroll down -> Change your frequency:   -> insert "BTC_Worker",
choose frequency and hit Update

andY

thank you, thats what i was looking for. just updated my values. couldn't enter 170mhz, so i used 168.75mhz.

[Mikestang]

Great, welcome back !

Got my new router all configured last night, home network set up and secure, and I am back to mining!  Strange thing is my stick uses 0.02 more amps at new house than the old one, all other settings are the same...

Go go gekko sticks!

[andymanone]

Little hint: you can choose yourself the right clockspeed for every Runner
gekkorun.de -> scroll down -> Change your frequency:   -> insert "BTC_Worker",
choose frequency and hit Update

andY

thank you, thats what i was looking for. just updated my values. couldn't enter 170mhz, so i used 168.75mhz.

You´re welcome
Maybe I could ask ammi84, to add the 170´er value soon...

andY