Gridseed GC3355 -Hybrid Scrypt/SHA256 ASIC

[gsupp]

Does anyone know where I can get just the GC3355 chips?

Have you tried contacting Gridseed directly?

Yeah, no response so far 

[1715376198]

1715376198

[bamsterdam]

How do you come in contact with gridseed? Or with diginforce? Cant find it on these chinese websites.
Thanks

[dishwara]

How do you come in contact with gridseed? Or with diginforce? Cant find it on these chinese websites.
Thanks

http://gridseed.com/product/mini?lang=en

Oversea Sales
E-mail：sales@gridseed.com
Telephone：86 10 8440 9669

中国区域网络总代理DigInForce
联系人：瓦力军团
E-mail：sales@diginforce.com
电   话：010-8416 4133

[bamsterdam]

indeed a hero member

Thanks man 

[DiabloPaul]

Has anyone in the states been able to deal directly with diginforce.com? I have been trying to register with their site but no luck so far. I am considering driving 45 minutes to the nearest 4 year university to see if I can find someone who will help me translate/walk me through placing an order with them.

[Richard Branson]

Why do you all bother to buy these miners?
They won't reach ROI ever...

240$ investment per Miner.
330 KH/s

Even with only 2% difficulty increasement (unrealistic, realistic is about 10-15%, calculate allways the worst case), you won't reach ROI.
Better buy the coins instead of giving away free USD/Coins to all hardware sellers.

[forevernoob]

Why do you all bother to buy these miners?
They won't reach ROI ever...

240$ investment per Miner.
330 KH/s

Even with only 2% difficulty increasement (unrealistic, realistic is about 10-15%, calculate allways the worst case), you won't reach ROI.
Better buy the coins instead of giving away free USD/Coins to all hardware sellers.

What if the price of BTC suddenly increases to 1k again? Ever thought of that?

[Richard Branson]

Why do you all bother to buy these miners?
They won't reach ROI ever...

240$ investment per Miner.
330 KH/s

Even with only 2% difficulty increasement (unrealistic, realistic is about 10-15%, calculate allways the worst case), you won't reach ROI.
Better buy the coins instead of giving away free USD/Coins to all hardware sellers.

What if the price of BTC suddenly increases to 1k again? Ever thought of that?

Do you even understand what ROI means?
If the price rises to 1k again.

The one who bought Gridseed Miners gains a few $.
But the one who bought with the same money bitcoins instead of gridseed miners will profit even more.

That's my point. Buying Mining equipment NOW is just plain stupid. The Miners are too expensive compared to difficulty and difficulty increasing rate.

[forevernoob]

That's just your opinion, not everyone mines to sell for BTC. Maybe some people like to mine different Scrypt coins.
But yes for some people it's better to buy low and sell high.

But I rather buy a miner that I know will have some resell value left when I'm done mining, than try to out smart the market.
Remember that the ASICMiner USB miners still sell on eBay.

[Velveeta22]

I have had ten gridseeds for about a week now and have a unique problem that I think will only be solved by the smart people in this forum.  The gridseeds look like they are hashing according to bfgminer, but the devices are not going “online”.  Of course there is no issue with my system being on the internet itself as other devices are hashing fine and no issues surfing the web. I have also attempted to use different pools to ensure it is not a pool specific or stratum issue. 

Version of bfgminer: http://cryptomining-blog.com/tag/gridseed-bfgminer

Screenshot of related system and setup info: http://s24.postimg.org/5b7dovy2d/photo_1.jpg

Connections and hardware:
USB Cables: http://www.ebay.com/itm/190691293084
Cable to Gridseeds: http://www.ebay.com/itm/111306458237
Gridseeds: http://www.ebay.com/itm/201057196108
PSU: http://www.amazon.com/gp/product/B00CGYCNG2
10 Port 3.0 USB Hub: http://www.amazon.com/gp/product/B00DCO9YVM

The ten gridseeds you see in the picture are on virtual COM ports 1-10.  The USB hub is 3.0 but connected to 2.0 port on the Z87 motherboard.  I do not believe there are any power issues or driver issues because the units are connected and hashing locally.  They are just not going "online" to connect to the pools.  I am going bonkers on this issue and would be more than happy to send a Doge or BTC tip to whomever can solve this issue!

[dishwara]

I have had ten gridseeds for about a week now and have a unique problem that I think will only be solved by the smart people in this forum.  The gridseeds look like they are hashing according to bfgminer, but the devices are not going “online”.  Of course there is no issue with my system being on the internet itself as other devices are hashing fine and no issues surfing the web. I have also attempted to use different pools to ensure it is not a pool specific or stratum issue.  

Version of bfgminer: http://cryptomining-blog.com/tag/gridseed-bfgminer

Screenshot of related system and setup info:

Connections and hardware:
USB Cables: http://www.ebay.com/itm/190691293084
Cable to Gridseeds: http://www.ebay.com/itm/111306458237
Gridseeds: http://www.ebay.com/itm/201057196108
PSU: http://www.amazon.com/gp/product/B00CGYCNG2
10 Port 3.0 USB Hub: http://www.amazon.com/gp/product/B00DCO9YVM

The ten gridseeds you see in the picture are on virtual COM ports 1-10.  The USB hub is 3.0 but connected to 2.0 port on the Z87 motherboard.  I do not believe there are any power issues or driver issues because the units are connected and hashing locally.  They are just not going "online" to connect to the pools.  I am going bonkers on this issue and would be more than happy to send a Doge or BTC tip to whomever can solve this issue!

3.0 usb hub is always NO for gridseeds.
Use 2.0 usb hub or just directly connect 1 or 2 miners to computer & check.
Is the led lights green & red blinking in gridseeds?

[Velveeta22]

Excellent troubleshooting.  I did not think to directly connect one or two of the gridseeds to a usb 2.0 right on the mother board.  I will attempt this tonight.

The lights look good.  Green flashes on all ten units in 1 second increments, which seems to be right according to info I collected a few days back:

What do the lights mean?

GREEN flashing LED means - 5V is ON / drive electronics are powered up.
GREEN LED is ON for 1 second, OFF for 1 second.

RED flashing LED - ON 3 seconds / OFF 3 seconds:
Miner Is Hashing / Processing Data.

RED flashing LED - ON 60 to 70 seconds - OFF 60 to 70 seconds
Miner is Not Hashing / Processing Data.

If Fan is OFF and RED LED IS STUCK ON or OFF i.e. not flashing:
12V is OFF - 5V is ON.

FAN is ON but no GREEN OR RED LED's are flashing ON or OFF:
12V ON - 5V OFF.

When first powering the miner on, the best sequence I have found is:

First, turn 12V Power ON
Second, turn 5V USB Power ON
This will enable self test to occur in correct sequence. (I'm guessing)
If you do not use correct power up sequence, various hash / no hash / no shares reported type problems may occur. (I'm guessing here too)

 
A few seconds after 5V USB Power is turned on, the GREEN LED's will start
to flash ON/OFF as written above.
After 12V power is turned ON, in about 60 to 70 seconds,
the RED LED's will start to sequence ON/OFF as written above.

[Velveeta22]

3.0 usb hub is always NO for gridseeds.
Use 2.0 usb hub or just directly connect 1 or 2 miners to computer & check.
Is the led lights green & red blinking in gridseeds?

http://www.amazon.com/gp/product/B004F38WT4

This USB hub looks to be 5v 4amp with 10 ports.  Would you expect this hub to work fine?

[miter_myles]

3.0 usb hub is always NO for gridseeds.
Use 2.0 usb hub or just directly connect 1 or 2 miners to computer & check.
Is the led lights green & red blinking in gridseeds?

http://www.amazon.com/gp/product/B00HL7Z46K

This USB hub looks to be 5v 4amp with 13 ports.  Would you expect this hub to work fine?

I have two of these right now... the RasPI with Controla didn't like all 13 ports filled.. I'm sitting at 8 on one and 10 on another..

[Velveeta22]

3.0 usb hub is always NO for gridseeds.
Use 2.0 usb hub or just directly connect 1 or 2 miners to computer & check.
Is the led lights green & red blinking in gridseeds?

http://www.amazon.com/gp/product/B00HL7Z46K

This USB hub looks to be 5v 4amp with 13 ports.  Would you expect this hub to work fine?

I have two of these right now... the RasPI with Controla didn't like all 13 ports filled.. I'm sitting at 8 on one and 10 on another..

At least it works!  Did more research on the unit and it looks like I was wrong, it is 5v 2.5 amp and each port takes a max of 300 milliamps.  Was not sure if anyone saw that post before I edited to http://www.amazon.com/gp/product/B004F38WT4 which is a 10 port 2.0 hub, 5v 4amp max.  Few more bucks, but an extra 1.5 amps.

[Velveeta22]

It has been a frustrating night.  I disconnected all the units, then I plugged one gridseed into the motherboard usb 2.0 slot.  There was no change.  The single gridseed would not go online.  Then I wanted to try it on my laptop.  I connected a gridseed to a 2.0 usb port directly to my laptop.  Ran the bfgminer, it was not hashing online.

How can it be reporting the hashing locally but not going online and reaching the pool?

[dishwara]

It has been a frustrating night.  I disconnected all the units, then I plugged one gridseed into the motherboard usb 2.0 slot.  There was no change.  The single gridseed would not go online.  Then I wanted to try it on my laptop.  I connected a gridseed to a 2.0 usb port directly to my laptop.  Ran the bfgminer, it was not hashing online.

How can it be reporting the hashing locally but not going online and reaching the pool?

what cmd line you used.
paste here.
cgminer --gridseed-options.............blah blah....

[Velveeta22]

You can see the cmd line in the pic above.  Mostly standard stuff that came with bfgminer 3.10

[dishwara]

You can see the cmd line in the pic above.  Mostly standard stuff that came with bfgminer 3.10

Dont know abt bfgminer.

[romang]

Anyone have any place to get the usb2 gridseed miners for cheap? ebay has then for 59.99 free shipping.