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Topic: Gridseed GC3355 -Hybrid Scrypt/SHA256 ASIC - page 3. (Read 107972 times)

donator
Activity: 686
Merit: 519
It's for the children!
Does anyone know if the 400mhs version is just a firmware update?  Or is that a different model than the 300mhs miner?

Kh/s

Do you have a source where you saw a 400Kh/s version or was it just a reading of 400Kh/s?  Depending on the method of speed rating my GS go from 0 - 2.1Mh/s or sit at 326-350
donator
Activity: 686
Merit: 519
It's for the children!
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.

A lot of people pay for power.

Also current leaserig weighted average is .010 / clevermining .09xx 30 day / litecoin .06xxx?

Even hosted/paid power these can turn a profit.  I prefer GPUs $160 for 500Kh/s low noise.
newbie
Activity: 1
Merit: 0
Does anyone know if the 400mhs version is just a firmware update?  Or is that a different model than the 300mhs miner?
full member
Activity: 140
Merit: 100
We're not in Wonderland anymore Alice
where can I buy just chips? and price for one? .)
legendary
Activity: 1484
Merit: 1026
In Cryptocoins I Trust
Utilizing 12v PCIe Cables:
Requirements: 3 PCIe Y splitters and 12 barrel plugs per PCIe Cable
PSU -> PCIe cable -> PCIe Y Splitter -> Two PCIe Y Splitters -> Produces 12 hot and 12 ground wires -> 12 barrel plugs per PCIe cable
3 -> 6 -> 12

Utilizing 12v Molex Cables:
Requirements: 3 Molex Splitters and 4 barrel plugs per Molex cable
PSU-> 4 pin Molex Cable-> Molex Y Splitter -> Two Molex Y Splitters -> Produces 4 hot and 4 ground wires -> 4 barrel plugs per Molex cable
1 -> 2 -> 4

Utilizing 12v wire in SATA Cables:
Requirements: 1 SATA to Molex Adapter, 3 Molex Y Splitters, and 4 barrel plugs
PSU -> Sata cable -> Sata to Molex adapter -> Molex Y Splitter -> Two Molex Y Splitters -> Produces 4 hot and 4 ground wires -> 4 barrel plugs per SATA cable
1 -> 2 -> 4

Utilizing 12v 8 pin CPU Cable:
Requirements: 3 8 pin CPU Y Splitters and 16 Barrel Plugs
PSU -> CPU 8 pin cable -> One 8 pin CPU Y splitters -> Two 8 pin CPU Y splitters -> Produces 16 hot and 16 ground wires -> 16 barrel plugs
4 -> 8 -> 16

Utilizing 12v 4 pin CPU Cable:
Requirements: 3 4+4 CPU Y Splitters and 8 Barrel Plugs
PSU -> CPU 4+4 Cable -> One 4+4 pin CPU Y Splitter -> Two 4+4 pin CPU Y Splitters -> Produces 8 hot and 8 ground wires -> 8 barrel plugs
2 -> 4 -> 8

How many Gridseeds are safe on:
Kingwin ABT-1000MA1S 1000 watt PSU with 81.5A 12v rail
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4256917&CatId=2496

Four PCIe Cables – 48 Gridseeds
One 8 pin CPU Cable – 16 Gridseeds
One 4 pin CPU Cable – 8 Gridseeds
Three Molex Cables – 12 Gridseeds
One SATA Cable – 4 Gridseeds

88 Gridseeds Total @ 10 watts each = 880 watts @ 12v = 73.33 Amps

Adapters/Splitters/Barrel Plugs Used:


Edit: only use these as examples. In my final version I upgraded all connectors and splitter to 18 AWG wire. This is very important you could start a fire.

The 6 pin to 6 pin adapter: http://www.outletpc.com/jp1932.html?gclid=CNvu3ZXQlL0CFSNp7Aodmh0A2A
$0.99 each

Sata to Molex: http://www.ebay.com/itm/like/251440289397?lpid=82
$2.49 each

Molex splitters: http://www.ebay.com/itm/4-Pin-Molex-Y-Splitter-Divider-Power-Cable-for-PC-Computer-PSU-Power-Supply-/121280596049?pt=US_Drive_Cables_dapters&hash=item1c3ce30851
$0.91 each

CPU 4+4 pin splitter: http://www.ebay.com/itm/like/360861809031?lpid=82
$5.16 each

CPU 8 pin y splitter: http://www.ebay.com/itm/like/360861821251?lpid=82

Barrel plugs: http://www.ebay.com/itm/100PCs-2-1-x-5-5mm-12V-DC-Power-Male-Plug-Jack-Adapter-Connector-for-CCTV-Camera-/221387014675?pt=US_Surveillance_Cables_Adapters_Connectors&hash=item338bb1c213
100 for $24.21


Note: If you try this, it is at your own risk. I'm not positive this will work but I don't see why it wouldn't...


-------------------------------

Any critiques of this setup?
hero member
Activity: 687
Merit: 500
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.

Which miner and what price are you talking about? They have several miners you know.
I think 240USD for a 400Kh/s miner is pretty fair.
they have different versions? Are you talking about the single chip version?


Isn't gridseed launching a 1TH/s BTC miner soon?
Anyway what do you think about the price? Would like some input since I'm planning on buying something to replace my GPU.

Can you quote me the source? I think the gridseed 5chip is nice, especially if you have high electricity cost. $/hash is not that bad after all

Ok, I agree $/hash is only like 40% higher than a GPU. And a GPU draws 140% more power.

Might be confusing LightningAsic & Gridseed. I thought LightningAsic created the Gridseed miner..
I was reading in their thread that they were also working on a BTC miner:
https://bitcointalksearch.org/topic/lightningasic-la100m100mhs-scrypt-miner-usd1999-la1ths-usd1750shipped-out-421921
hero member
Activity: 525
Merit: 500
..yeah
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.

Which miner and what price are you talking about? They have several miners you know.
I think 240USD for a 400Kh/s miner is pretty fair.
they have different versions? Are you talking about the single chip version?


Isn't gridseed launching a 1TH/s BTC miner soon?
Anyway what do you think about the price? Would like some input since I'm planning on buying something to replace my GPU.

Can you quote me the source? I think the gridseed 5chip is nice, especially if you have high electricity cost. $/hash is not that bad after all
hero member
Activity: 687
Merit: 500
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.

Which miner and what price are you talking about? They have several miners you know.
I think 240USD for a 400Kh/s miner is pretty fair.
they have different versions? Are you talking about the single chip version?


Isn't gridseed launching a 1TH/s BTC miner soon?
Anyway what do you think about the price? Would like some input since I'm planning on buying something to replace my GPU.
hero member
Activity: 525
Merit: 500
..yeah
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.

Which miner and what price are you talking about? They have several miners you know.
I think 240USD for a 400Kh/s miner is pretty fair.
they have different versions? Are you talking about the single chip version?

There is a theory that you can run up to 127 gridseeds per USB controller.

I think it's practical to manually set the limit to a lower number unless you actually have 127 units to test this on.

The next step is to then try and see how many USB controllers your system or motherboard has, otherwise you could just buy a PCI USB expansion card, then you are limited by how many slots your motherboard has.

For most people, this should not be an issue. You could theoretically run 240+ on just one motherboard, on the assumption that there are two separate USB controllers (north and south? or whatever). And an additional 120 per PCI USB expansion card.

The next issue is what OS to run, and RAM requirements. Litecoin BAMT 1.3 runs on less than 1 GB of RAM mining 5 GPUs using cgminer, and it loads on a USB flash drive as well, saving you the cost of a hard drive or SSD.

thanks, that helps.
hero member
Activity: 687
Merit: 500
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.

Which miner and what price are you talking about? They have several miners you know.
I think 240USD for a 400Kh/s miner is pretty fair.
sr. member
Activity: 440
Merit: 250
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.

For me it was about reducing my power footprint, time spent baby sitting GPU's and heat. I've not got 20 grids on a single computer drawing around 180 watts fully operational. Heat isnt an issue at all (I've even disconnected the fans on the grids) and I have not had to baby sit them at all other than changing the version of cpuminer when it was patched for single mode only.

I managed to sell the GPU's I had (which amounted to a bit less hashing power I might add) for more than enough to buy those 20 grids. 
member
Activity: 109
Merit: 10
Why would someone buy a gridseed miner right now at these prices?  I'm not understanding how it would ever be profitable.
legendary
Activity: 3416
Merit: 1912
The Concierge of Crypto
There is a theory that you can run up to 127 gridseeds per USB controller.

I think it's practical to manually set the limit to a lower number unless you actually have 127 units to test this on.

The next step is to then try and see how many USB controllers your system or motherboard has, otherwise you could just buy a PCI USB expansion card, then you are limited by how many slots your motherboard has.

For most people, this should not be an issue. You could theoretically run 240+ on just one motherboard, on the assumption that there are two separate USB controllers (north and south? or whatever). And an additional 120 per PCI USB expansion card.

The next issue is what OS to run, and RAM requirements. Litecoin BAMT 1.3 runs on less than 1 GB of RAM mining 5 GPUs using cgminer, and it loads on a USB flash drive as well, saving you the cost of a hard drive or SSD.
hero member
Activity: 525
Merit: 500
..yeah
thanks guys. In the picture thread I found someone powering 100 grids from two computers. Will let you know soon how many we can run off one pc  Cool
legendary
Activity: 1484
Merit: 1026
In Cryptocoins I Trust
Can an electrician help me out.... or armchair electrician! Smiley

I'm trying to figure out a custom power setup using ATX power supplies for Scrypt mode only. Would something like this work?Huh

Utilizing 12v PCIe Cables:
PSU -> PCIe cable -> PCIe 8 pin to double 6 pin Splitter (could be replaced with 6 pin to 6 pin splitter if neccesary) -> Two PCIe 6 pin to double 6 pin Splitters -> Produces 12 hot and 12 ground wires after cutting off the ends -> 12 barrel plugs per PCIe cable

Utilizing 12v Molex Cables:
One 4 pin Molex Cable with 3 connectors -> Splitter all on three connectors -> Produces 6 hot and 6 ground wires after cutting off the ends -> 6 barrel plugs per Molex cable

Utilizing 12v 8 pin CPU Cable:
PSU -> CPU 8 pin cable -> Produces 4 hot and 4 ground wires after cutting off ends -> 4 barrel plugs

Assuming I used a Corsair CS750M PSU (http://www.newegg.com/Product/Product.aspx?Item=N82E16817139061) it would have:
Four 8 Pin PCI-E Cables -> Splitter -> Double Splitter -> 12 barrel plugs each -> Powers 48 Gridseeds
One 4 pin Molex Cable with 3 connectors -> Splitter all on three connectors -> 6 barrel plugs -> Powers 6 Gridseeds
One 8 pin CPU Cable -> 4 barrel plugs -> Powers 4 Gridseeds

58 Gridseeds total powered @ 10 watts each = 580 watts = an efficiently loaded PSU imo. Cool

There is 62 amps on the +12 v rail of that PSU... by my calculation up to 744 watts. So I could probably power more gridseeds if I wanted to? Any ideas of how to add more units easily?? Possibly by adding more connectors/adapters?? using the ATX connector? I liked the idea of using splitters because I can just cut off the end and jam them into the barrel plug connectors pretty easily.

Adapters/Splitters/Barrel Plugs Used:
The 8pin to 6 pin adapter: http://www.ebay.com/itm/NEW-PCI-E-8-PIN-TO-PCI-E-6-PIN-Y-SPLITTER-POWER-CABLE-6-MADE-IN-AMERICA-/251342990721?pt=US_Power_Cables_Connectors&hash=item3a8535ad81
$6.50

The 6 pin to 6 pin adapter: http://www.outletpc.com/jp1932.html?gclid=CNvu3ZXQlL0CFSNp7Aodmh0A2A
$0.99 each

Molex splitters: http://www.ebay.com/itm/4-Pin-Molex-Y-Splitter-Divider-Power-Cable-for-PC-Computer-PSU-Power-Supply-/121280596049?pt=US_Drive_Cables_dapters&hash=item1c3ce30851
$0.91 each

Barrel plugs: http://www.ebay.com/itm/100PCs-2-1-x-5-5mm-12V-DC-Power-Male-Plug-Jack-Adapter-Connector-for-CCTV-Camera-/221387014675?pt=US_Surveillance_Cables_Adapters_Connectors&hash=item338bb1c213
100 for $24.21

Any ideas to reduce costs??? Source the splitters somewhere cheaper, add more adapters/splitters? etc. Huh

Note: If you try this, it is at your own risk. I'm not positive this will work but I don't see why it wouldn't...

Note: If you try this, it is at your own risk. I'm not positive this will work but I don't see why it wouldn't...
legendary
Activity: 1890
Merit: 1031
Anyone has experience in how many you can run off one computer? Say I can find one or several USB-hubs , how many will run off one pc? I read they suggest 10-15 per 1 raspberry, but I have several mainboards/psus.

You guys think 100 per computer could be possible? 11 USB hubs with 10 ports and own powersupply should do the job. Thoughts?

You need a Powerd hub to, no problems whit 30 gridseeds.
legendary
Activity: 896
Merit: 1006
First 100% Liquid Stablecoin Backed by Gold
Best place to buy a single unit in the US? And also if these work as well as advertised best place to sell my current rigs? Smiley

Probably go with zoomhash. His prices are actually pretty good considering importing is around $150 for 200+ units and worrying about customs and import tariffs
$150?  Isn't it $160 before shipping/import costs?
legendary
Activity: 1526
Merit: 1000
the grandpa of cryptos
i got mine yesterday and im mining SUN with them right now Smiley just not sure how to run dual mode to do some CTM
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
Anyone has experience in how many you can run off one computer? Say I can find one or several USB-hubs , how many will run off one pc? I read they suggest 10-15 per 1 raspberry, but I have several mainboards/psus.

You guys think 100 per computer could be possible? 11 USB hubs with 10 ports and own powersupply should do the job. Thoughts?

Isnt there a 127 device limit on USB? Dont know if thats per controller or within the OS though.

I've got 20 running on one PC right now and they are all working great. One things I've noticed for those of you running cgminer to control these things. My pool was reporting about 75% of what cgminer said my speed was. After switching back to cpuminer (one instance per miner) I'm seeing average speeds of 355khs on my pool now.

I think its or the controller, but i imagine windows itself can only handle so many.

keep in mind the bandwidth. 100 gridseeds sending a few kb back and forth would overwhelm the capacity of USB2 controller and likely cause some bad latency issues
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