LightningAsic usb miners based Gridseed GC3355 Tech Support Thread

[dyland]

Would anyone be interested in buying the Raspberry PI+SD+Power Adapter with loaded cgminer? Plug and play package for gridseed. One is good for 20 miners. I ended up having extra two, willing to sell a little lower than retail price.

I might be yes.

Pm me with price.

Currently have full kit (supplied controller). Plug and play with full kit?

[1714692834]

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[Xer0]

nice, pool showed me 540 kH/s today

[miner765]

A theoretical question: could they be hashing weaker if there is absolutely NO fan by the miners? Stock would be detached and no fan blowing into them.

[Ofenkaese]

A theoretical question: could they be hashing weaker if there is absolutely NO fan by the miners? Stock would be detached and no fan blowing into them.
[/quote

theoretically "yes"

[jwoodyu]

If anyone interested I've modified Andareed's version of cgminer a bit to let you better finetune the gridseed units. There's a big variance in the resistors they used as voltage references so every unit has a different maximum frequency they can run at.

https://github.com/girnyau/cgminer-gc3355

New frequency table: 800, 813, 825, 838, 850, 863, 875, 888, 900, 913, 925, 938, 950, 963, 975, 988, 1000, 1013, 1025, 1038, 1050, 1063, 1075, 1088, 1100, 1113, 1125, 1138, 1150, 1163, 1175, 1188, 1200

You won't need the ghz ones however unless highly overvolted

You can also define a base frequency as usual, then set per device frequencies by the units' serial number if you want:

--gridseed-options freq=888 --gridseed-freq 8D74488A4949=900,8D96227B5449=900,8D7357785355=875

Factory units running since ~48 hours without any hw mods but the fans desoldered:

 cgminer version 3.7.2 - Started: [2014-03-16 13:23:19]
--------------------------------------------------------------------------------
 (5s):1.891M (avg):1.888Mh/s | A:3357360  R:4832  HW:228  WU:10.5/m
 ST: 2  SS: 0  NB: 950  LW: 34253  GF: 2  RF: 0
 Connected to litecoinpool.org diff 256 with stratum as user composeit.gridseed
 Block: 3a0bf6f9...  Diff:5.16K  Started: [22:08:37]  Best share: 18.8M
--------------------------------------------------------------------------------
 *P*ool management *S*ettings *D*isplay options *Q*uit
 GSD 0: 8D74488A4949  900 MHz | 382.0K/381.9Kh/s | A:653120 R:2176 HW:204
 GSD 1: 8D7135A35355  888 MHz | 376.9K/376.8Kh/s | A:670592 R:1152 HW:  6
 GSD 2: 8D96227B5449  900 MHz | 382.0K/381.9Kh/s | A:675936 R: 800 HW:  5
 GSD 3: 6D9323805251  888 MHz | 376.9K/376.8Kh/s | A:677392 R: 352 HW:  3
 GSD 4: 8D7357785355  875 MHz | 371.4K/371.3Kh/s | A:680320 R: 352 HW: 10
--------------------------------------------------------------------------------

Cheers

I can't get this syntax to work on this same distro. I must be an idiot but any help would be great. Here is the way it is now and i have tried everything

--scrypt --gridseed-options baud=115200 --gridseed-options chips=5 --gridseed-options freq=875 --gridseed-freq 6D8F08885148=900,6D7E256F5650=900,6D7A17675650=875,6D8620AA5650=875 -o stratum+tcp blha blah blah

[worldlybedouin]

I can't get this syntax to work on this same distro. I must be an idiot but any help would be great. Here is the way it is now and i have tried everything

--scrypt --gridseed-options baud=115200 --gridseed-options chips=5 --gridseed-options freq=875 --gridseed-freq 6D8F08885148=900,6D7E256F5650=900,6D7A17675650=875,6D8620AA5650=875 -o stratum+tcp blha blah blah

the --gridseed-options are all comma separated values like this:

--gridseed-options=baud=115200,freq=875,chips=5

[jwoodyu]

I can't get this syntax to work on this same distro. I must be an idiot but any help would be great. Here is the way it is now and i have tried everything

--scrypt --gridseed-options baud=115200 --gridseed-options chips=5 --gridseed-options freq=875 --gridseed-freq 6D8F08885148=900,6D7E256F5650=900,6D7A17675650=875,6D8620AA5650=875 -o stratum+tcp blha blah blah

the --gridseed-options are all comma separated values like this:

--gridseed-options=baud=115200,freq=875,chips=5

right on but if you look back at his post he talks about being able to set the a per device frequency like this

 "You can also define a base frequency as usual, then set per device frequencies by the units' serial number if you want:

--gridseed-options freq=888 --gridseed-freq 8D74488A4949=900,8D96227B5449=900,8D7357785355=875"

Darn if i can get that to work, it is all or nothing. I have one Gridseed that will run 950 and one that will run 925 with no mods. The others are happy at 875. I would like to squeeze every coin i can out of the two faster units.

[worldlybedouin]

I can't get this syntax to work on this same distro. I must be an idiot but any help would be great. Here is the way it is now and i have tried everything

--scrypt --gridseed-options baud=115200 --gridseed-options chips=5 --gridseed-options freq=875 --gridseed-freq 6D8F08885148=900,6D7E256F5650=900,6D7A17675650=875,6D8620AA5650=875 -o stratum+tcp blha blah blah

the --gridseed-options are all comma separated values like this:

--gridseed-options=baud=115200,freq=875,chips=5

right on but if you look back at his post he talks about being able to set the a per device frequency like this

 "You can also define a base frequency as usual, then set per device frequencies by the units' serial number if you want:

--gridseed-options freq=888 --gridseed-freq 8D74488A4949=900,8D96227B5449=900,8D7357785355=875"

Darn if i can get that to work, it is all or nothing. I have one Gridseed that will run 950 and one that will run 925 with no mods. The others are happy at 875. I would like to squeeze every coin i can out of the two faster units.

Here's what I'm doing and it seems to work...

My cgminer.conf (don't forget to change this around so its setup for our pools/workers):

Code:

{
"pools" : [
	{
		"name" : "Pool-1",
		"url" : "stratum+tcp://POOL-URL:PORT",
		"user" : "user.1",
		"pass" : "abc",
		"pool-priority" : "0"
	},
	{
		"name" : "Pool-2",
		"url" : "stratum+tcp://POOL-URL:PORT",
		"user" : "user.1",
		"pass" : "abc",
		"pool-priority" : "0"
	}
],
"api-allow" : "W:127.0.0.1,192.168.1/24",
"api-listen" : true,
"failover-only" : true,
"scrypt" : true,
"gridseed-options" : "freq=875,baud=115200,chips=5,per_chip_stats=1"
}

Command I use to start cgminer with the different frequencies:

Code:

sudo ./cgminer --config=cgminer.conf --hotplug=0 --gridseed-freq 6D7014835251=800,6D741FA25251=888,6D7545995251=863,6D7F30A65251=863,6D89369B5251=863,6D7B177A5251=813,6D75407B5455=888,8D8155785551=863,8D8521785551=863,6D7846A95251=850

[anarchyx914]

Running now for 16h without problems on RASPI.
Frequencies seem to be okay. Maybe I have to downsize it for two miners by one step. How do you think about 16 HW in 16 hours? Is this okay?

EDIT: Pool shows rates between 3400 and 3700 kh/s

What CGMiner is that? I would love to see my device IDs, I have one device that doesnt like 850 frequency and gets alot of HW errors. I need to tune it down a bit.

[dani]

Running now for 16h without problems on RASPI.
Frequencies seem to be okay. Maybe I have to downsize it for two miners by one step. How do you think about 16 HW in 16 hours? Is this okay?

EDIT: Pool shows rates between 3400 and 3700 kh/s

Thats just fine  . I read on cryptobadger that the hashrate shown is the real hashrate, meaning hardware-errors are already deducted. I wouldn't give a shit about a hardware error on ASIC chips, because the chips don't give one either  . These are not gpus.

[vabchgent]

Running now for 16h without problems on RASPI.
Frequencies seem to be okay. Maybe I have to downsize it for two miners by one step. How do you think about 16 HW in 16 hours? Is this okay?

EDIT: Pool shows rates between 3400 and 3700 kh/s

What CGMiner is that? I would love to see my device IDs, I have one device that doesnt like 850 frequency and gets alot of HW errors. I need to tune it down a bit.

available here

http://cryptomining-blog.com/1688-alternative-cgminer-3-7-2-for-scrypt-mining-on-gridseed-5-chip-gc3355-asics/

[Ofenkaese]

Hi,

as you have seen I've some LA devices running on several frequencies. The other half of my devices is running on standard frequencies, controlled by the standard controller. When I came home today I realized, that 5 devices stopped working. They are not blinking any more. I plugged out, in again and again.

Nothing happens to them any more.

I had the same issue on one device approx 30 minutes after start up of the system. It had something burned next to the usb connector on the board. I'm now missing a total of 6 devices out of 20 :-/  Jack promised to send me one on replacement two weeks ago. Now I'm at six and don't have the first one yet. Any one knows how to claim the warranty with Jack??   *damn it* ROI is running away.

Any one else facing those problems??? Any one able to repair that???

BR
Martin

[jwoodyu]

I can't get this syntax to work on this same distro. I must be an idiot but any help would be great. Here is the way it is now and i have tried everything

--scrypt --gridseed-options baud=115200 --gridseed-options chips=5 --gridseed-options freq=875 --gridseed-freq 6D8F08885148=900,6D7E256F5650=900,6D7A17675650=875,6D8620AA5650=875 -o stratum+tcp blha blah blah

the --gridseed-options are all comma separated values like this:

--gridseed-options=baud=115200,freq=875,chips=5

right on but if you look back at his post he talks about being able to set the a per device frequency like this

 "You can also define a base frequency as usual, then set per device frequencies by the units' serial number if you want:

--gridseed-options freq=888 --gridseed-freq 8D74488A4949=900,8D96227B5449=900,8D7357785355=875"

Darn if i can get that to work, it is all or nothing. I have one Gridseed that will run 950 and one that will run 925 with no mods. The others are happy at 875. I would like to squeeze every coin i can out of the two faster units.

Here's what I'm doing and it seems to work...

My cgminer.conf (don't forget to change this around so its setup for our pools/workers):

Code:

{
"pools" : [
	{
		"name" : "Pool-1",
		"url" : "stratum+tcp://POOL-URL:PORT",
		"user" : "user.1",
		"pass" : "abc",
		"pool-priority" : "0"
	},
	{
		"name" : "Pool-2",
		"url" : "stratum+tcp://POOL-URL:PORT",
		"user" : "user.1",
		"pass" : "abc",
		"pool-priority" : "0"
	}
],
"api-allow" : "W:127.0.0.1,192.168.1/24",
"api-listen" : true,
"failover-only" : true,
"scrypt" : true,
"gridseed-options" : "freq=875,baud=115200,chips=5,per_chip_stats=1"
}

Command I use to start cgminer with the different frequencies:

Code:

sudo ./cgminer --config=cgminer.conf --hotplug=0 --gridseed-freq 6D7014835251=800,6D741FA25251=888,6D7545995251=863,6D7F30A65251=863,6D89369B5251=863,6D7B177A5251=813,6D75407B5455=888,8D8155785551=863,8D8521785551=863,6D7846A95251=850

Roger that! That is exactly what i needed to see thanks!

[chasmacd]

Hi,

as you have seen I've some LA devices running on several frequencies. The other half of my devices is running on standard frequencies, controlled by the standard controller. When I came home today I realized, that 5 devices stopped working. They are not blinking any more. I plugged out, in again and again.

Nothing happens to them any more.

I had the same issue on one device approx 30 minutes after start up of the system. It had something burned next to the usb connector on the board. I'm now missing a total of 6 devices out of 20 :-/  Jack promised to send me one on replacement two weeks ago. Now I'm at six and don't have the first one yet. Any one knows how to claim the warranty with Jack??   *damn it* ROI is running away.

Any one else facing those problems??? Any one able to repair that???

BR
Martin

Are all 5 coming off the same PSU or 1/2 of a USB Hub?  I had a similar problem where 5 of my miners died (still had the flashing lights but no hashing).  Flashing lights powered by USB.  Fans/hashing powered by PSU. I traced it down to a bad PSU which Jack replaced no charge.  I was also able to order a 30A 12V psu (for LED lighting) from EBay for £16 (looks exactly like the L.A. PSU) so I now have a backup PSU.

[Ofenkaese]

Hi,

as you have seen I've some LA devices running on several frequencies. The other half of my devices is running on standard frequencies, controlled by the standard controller. When I came home today I realized, that 5 devices stopped working. They are not blinking any more. I plugged out, in again and again.

Nothing happens to them any more.

I had the same issue on one device approx 30 minutes after start up of the system. It had something burned next to the usb connector on the board. I'm now missing a total of 6 devices out of 20 :-/  Jack promised to send me one on replacement two weeks ago. Now I'm at six and don't have the first one yet. Any one knows how to claim the warranty with Jack??   *damn it* ROI is running away.

Any one else facing those problems??? Any one able to repair that???

BR
Martin

Are all 5 coming off the same PSU or 1/2 of a USB Hub?  I had a similar problem where 5 of my miners died (still had the flashing lights but no hashing).  Flashing lights powered by USB.  Fans/hashing powered by PSU. I traced it down to a bad PSU which Jack replaced no charge.  I was also able to order a 30A 12V psu (for LED lighting) from EBay for £16 (looks exactly like the L.A. PSU) so I now have a backup PSU.

yes, they are all coming off from 1/2 of a USB hub. I still use the same PSU... the remaining devices work just fine - also on the burned ones the fans are rotating like always... seems like just USB connection is gone. I tried to exchange the usb ports on the hub. Finally the units themselves seem to be the problem here. Jack now asked me to send them back for repair which is of course very nice from him but I'm scared it will take weeks to get them back working.

[chasmacd]

Hi,

as you have seen I've some LA devices running on several frequencies. The other half of my devices is running on standard frequencies, controlled by the standard controller. When I came home today I realized, that 5 devices stopped working. They are not blinking any more. I plugged out, in again and again.

Nothing happens to them any more.

I had the same issue on one device approx 30 minutes after start up of the system. It had something burned next to the usb connector on the board. I'm now missing a total of 6 devices out of 20 :-/  Jack promised to send me one on replacement two weeks ago. Now I'm at six and don't have the first one yet. Any one knows how to claim the warranty with Jack??   *damn it* ROI is running away.

Any one else facing those problems??? Any one able to repair that???

BR
Martin

Are all 5 coming off the same PSU or 1/2 of a USB Hub?  I had a similar problem where 5 of my miners died (still had the flashing lights but no hashing).  Flashing lights powered by USB.  Fans/hashing powered by PSU. I traced it down to a bad PSU which Jack replaced no charge.  I was also able to order a 30A 12V psu (for LED lighting) from EBay for £16 (looks exactly like the L.A. PSU) so I now have a backup PSU.

yes, they are all coming off from 1/2 of a USB hub. I still use the same PSU... the remaining devices work just fine - also on the burned ones the fans are rotating like always... seems like just USB connection is gone. I tried to exchange the usb ports on the hub. Finally the units themselves seem to be the problem here. Jack now asked me to send them back for repair which is of course very nice from him but I'm scared it will take weeks to get them back working.

If it helps it took 13 days from the time I told Jack about the blown PSU to receiving the replacement.  Told him on the 12th of March and had the PSU in my hands on the 25th.  You might want to check out that USB hub though and make sure the 1/2 that has the blown miners on it still works.

[volder]

20 pieces boxed... ;-)
what have you done with your's?

Although this is not the finished product, you can see where I'm going with it. This is (so far) 30 units in a 2U Rack Shelf with angle bars that I cut to size for spacing.

[pembo210]

Hey guys,
I get almost 10% rejects as duplicate shares. Any ideas?


edit: more

[darkfriend77]

Very cool, thank you very much for sharing the link. Will also go to donate.
Do you also have an image version containing the detailed frequency setup? Would love to test that.

Here's a link to the complied version of cgminer made by Girhes:  https://mega.co.nz/#!asJixSiC!kNLgTzZv4qN1j06yptsC__KVdFZ7n8zsRydVja1dwPw

Please don't forget to donate to him as well if you like the modified version he's made!  Donate to Girhes here:  https://bitcointalk.org/index.php?topic=477709.msg5752544#msg5752544

Once you download this version, you'll want to backup the existing one by renaming it to another file name.  Then take this version and change it's name from cgminer.girhes to cgminer instead.

Also, don't forget to change permissions on this file so you can execute it.

This binary is giving me around 10% less kh rate then the normal cgminer ... with the same setup at 850mhz ....

[edonkey]

Thanks for this awesome mod Girhes!

But I'm running into a GUI issue with Scripta. It appears that the API output of this version of cgminer is not something that Scripta knows how to parse. What I see for the hash rate is:

NaN Th/s

Maybe there's an option that I can use that will provide the same status JSON text to Scripta? Or maybe someone has a Scripta mod that handles the alternative output?

Thanks in advance for any suggestions.

If anyone interested I've modified Andareed's version of cgminer a bit to let you better finetune the gridseed units. There's a big variance in the resistors they used as voltage references so every unit has a different maximum frequency they can run at.

https://github.com/girnyau/cgminer-gc3355

New frequency table: 800, 813, 825, 838, 850, 863, 875, 888, 900, 913, 925, 938, 950, 963, 975, 988, 1000, 1013, 1025, 1038, 1050, 1063, 1075, 1088, 1100, 1113, 1125, 1138, 1150, 1163, 1175, 1188, 1200

You won't need the ghz ones however unless highly overvolted

You can also define a base frequency as usual, then set per device frequencies by the units' serial number if you want:

--gridseed-options freq=888 --gridseed-freq 8D74488A4949=900,8D96227B5449=900,8D7357785355=875

Factory units running since ~48 hours without any hw mods but the fans desoldered:

 cgminer version 3.7.2 - Started: [2014-03-16 13:23:19]
--------------------------------------------------------------------------------
 (5s):1.891M (avg):1.888Mh/s | A:3357360  R:4832  HW:228  WU:10.5/m
 ST: 2  SS: 0  NB: 950  LW: 34253  GF: 2  RF: 0
 Connected to litecoinpool.org diff 256 with stratum as user composeit.gridseed
 Block: 3a0bf6f9...  Diff:5.16K  Started: [22:08:37]  Best share: 18.8M
--------------------------------------------------------------------------------
 *P*ool management *S*ettings *D*isplay options *Q*uit
 GSD 0: 8D74488A4949  900 MHz | 382.0K/381.9Kh/s | A:653120 R:2176 HW:204
 GSD 1: 8D7135A35355  888 MHz | 376.9K/376.8Kh/s | A:670592 R:1152 HW:  6
 GSD 2: 8D96227B5449  900 MHz | 382.0K/381.9Kh/s | A:675936 R: 800 HW:  5
 GSD 3: 6D9323805251  888 MHz | 376.9K/376.8Kh/s | A:677392 R: 352 HW:  3
 GSD 4: 8D7357785355  875 MHz | 371.4K/371.3Kh/s | A:680320 R: 352 HW: 10
--------------------------------------------------------------------------------

Cheers