GRIDSEED G-BLADE Overclocking 7Mh/s, improvements and repair

[J4bberwock]

From the two blades I am getting about 13.8 mh/s with an average of about 1.6 h/w errors per hour over the pair of blades, I will be increasing the clock once I've a 24 hour run under my belt, I suspect a combined total 14.5 mh/s maybe possible across the two units.

I am soure you can get more if you change thosw two Q7 and Q8

my replacement ones are on their way.
I hope to tell you it works in a few days

[1713571497]

1713571497

[Blisk]

Did anyone check if these companies which sell those scrypt machines use the same chips or not?
I think they do. And if they can buy it, we can do it also.
 How hard is to made miner like that when you get chips, using directly raspberry pi on it.

[J4bberwock]

Did anyone check if these companies which sell those scrypt machines use the same chips or not?
I think they do. And if they can buy it, we can do it also.
 How hard is to made miner like that when you get chips, using directly raspberry pi on it.

you still need the firmware to communicate with the chips.
The electronic part can be done, but might not worth it if you only plan to do a few.

http://www.innosilicon.com/A2.htm

200$ each chip if you order 50 pieces
roughly 10000$ = the actual price for the complete miner with 48 chips

[nemercry]

With what did you glue it on the backplate ?

I assume that i have to be very carefull, that the Glue is not electronically conductive.
Can someone post me an example of a glue used ?

Regards

[Blisk]

With what did you glue it on the backplate ?

I assume that i have to be very carefull, that the Glue is not electronically conductive.
Can someone post me an example of a glue used ?

Regards

I will glue it with
http://www.ebay.com/itm/Thermal-Conductive-Adhesive-Heatsink-Viscous-Plaster-Compound-Glue-For-GPU-IC-PC-/231001799393?pt=AU_Components&hash=item35c8c7bae1

[Blisk]

Did anyone check if these companies which sell those scrypt machines use the same chips or not?
I think they do. And if they can buy it, we can do it also.
 How hard is to made miner like that when you get chips, using directly raspberry pi on it.

you still need the firmware to communicate with the chips.
The electronic part can be done, but might not worth it if you only plan to do a few.

http://www.innosilicon.com/A2.htm

200$ each chip if you order 50 pieces
roughly 10000$ = the actual price for the complete miner with 48 chips

these chips are too expencive and I am soure you can get cheapper one.
And if more people takes it we get discount also.

We need to search cheapper chips

[nemercry]

With what did you glue it on the backplate ?

I assume that i have to be very carefull, that the Glue is not electronically conductive.
Can someone post me an example of a glue used ?

Regards

I will glue it with
http://www.ebay.com/itm/Thermal-Conductive-Adhesive-Heatsink-Viscous-Plaster-Compound-Glue-For-GPU-IC-PC-/231001799393?pt=AU_Components&hash=item35c8c7bae1

There is no word on electronic non conductivity ?

[Xer0]

Did anyone check if these companies which sell those scrypt machines use the same chips or not?
I think they do. And if they can buy it, we can do it also.
 How hard is to made miner like that when you get chips, using directly raspberry pi on it.

you still need the firmware to communicate with the chips.
The electronic part can be done, but might not worth it if you only plan to do a few.

http://www.innosilicon.com/A2.htm

200$ each chip if you order 50 pieces
roughly 10000$ = the actual price for the complete miner with 48 chips

these chips are too expencive and I am soure you can get cheapper one.
And if more people takes it we get discount also.

We need to search cheapper chips

they price the chips so high for purpose
you wont buy their complete miners if you could build yourself one cheaper

[Blisk]

With what did you glue it on the backplate ?

I assume that i have to be very carefull, that the Glue is not electronically conductive.
Can someone post me an example of a glue used ?

Regards

I will glue it with
http://www.ebay.com/itm/Thermal-Conductive-Adhesive-Heatsink-Viscous-Plaster-Compound-Glue-For-GPU-IC-PC-/231001799393?pt=AU_Components&hash=item35c8c7bae1

There is no word on electronic non conductivity ?

I buyed this two
Details about  2Pcs Thermal Conductive Heatsink Plaster Viscous Compound Glue for PC GPU NI5L
which is the same, two because tube are really small.

Features:
Prevent overheating & extend the life of your computer parts, LED flashlights and many other devices
Does not dry in the tube
Lasts for many small projects
Very strong after it dries
Great heat transfer / thermal
Low electrical conductivity (highly insulating)
Can be used for thermal coupling of electrical device to heatsinks, especially for CPU, Northbridge, Southbridge and GPU cooler use

Specification:
Melting capacity: 0 (200 degree celsius/ 24Hours)
Evaporation: 0.001% (200 degree celsius/ 24Hours)
Thermal conductivity: > 0.671W/m-K Thermal
Impedance: <0.246
Clotting time: 3min (25 degree celsius)
Strength of connected buildings: 25Kg
Insulation coefficient: > 5.1
Dissipation coefficient: <0.005
Temperature resistance: 200 degree celsius
Size: Approx. 6 x 1.7 x 1.2cm (L*W*H)
Net Weight: About 5g

[J4bberwock]

Did anyone check if these companies which sell those scrypt machines use the same chips or not?
I think they do. And if they can buy it, we can do it also.
 How hard is to made miner like that when you get chips, using directly raspberry pi on it.

you still need the firmware to communicate with the chips.
The electronic part can be done, but might not worth it if you only plan to do a few.

http://www.innosilicon.com/A2.htm

200$ each chip if you order 50 pieces
roughly 10000$ = the actual price for the complete miner with 48 chips

these chips are too expencive and I am soure you can get cheapper one.
And if more people takes it we get discount also.

We need to search cheapper chips

Gridseed GC3355 chips would cost nothing to buy now. Could worth the try, plus the firmware and the design to be improved already exists.
It all depends if they sell the chips and if they sell for really cheap.
They aren't that power hungry to move 28nm now. simply marketing.

[Blisk]

like they sell asics chips for bitcoins, afte they didn't selled so many devices they expect, they start to sell chips for low prices.
And if price is enoug low it is worth to make a board and controller for it.
you can than just add as many chips as you wan't you don't need to buy new devices.

[J4bberwock]

like they sell asics chips for bitcoins, afte they didn't selled so many devices they expect, they start to sell chips for low prices.
And if price is enoug low it is worth to make a board and controller for it.
you can than just add as many chips as you wan't you don't need to buy new devices.

I'll try to get in touch with gridseed for chips.
If they can sell chips, I could try to make an improved design for them.

To be competitive with KNC, we need GC3355 chips for less than 2.4$ each
KNC = 33$/Mh
GC3355 is 90Kh/s for one chip

[Blisk]

like they sell asics chips for bitcoins, afte they didn't selled so many devices they expect, they start to sell chips for low prices.
And if price is enoug low it is worth to make a board and controller for it.
you can than just add as many chips as you wan't you don't need to buy new devices.

I'll try to get in touch with gridseed for chips.
If they can sell chips, I could try to make an improved design for them.

maybe you can try to check who sell those chips in china, or maybe on alibaba.com
I am soure there is more people interested in it so you can buy more like 1000 chips.

[J4bberwock]

http://www.ebay.com/itm/SET-OF-GC3355-Q64-SCRYPT-MINING-IC-500-PCS-/321394022530?

let's wait 2 or 3 weeks until the price is divided by 4
Actually, it's almost cheaper to buy 5chip pods at 65$

[Blisk]

yes for now and that is the trick not to sell it cheap until they can sell their devices.
wait a little bit and price will drop like 1500$ for 500 chips, that is worth to make your ovn device.
And you make it the way you can just add another set of chips for higher hashrate.

http://www.alibaba.com/buying-request/hot-products/gc3355--q64-gridseed-chip..html

there are other people with the same idea

[xcooling]

U can use a very small amount of epoxy to attach them, alternatively superglue.

[racebyu]

Did anyone check if these companies which sell those scrypt machines use the same chips or not?
I think they do. And if they can buy it, we can do it also.
 How hard is to made miner like that when you get chips, using directly raspberry pi on it.

you still need the firmware to communicate with the chips.
The electronic part can be done, but might not worth it if you only plan to do a few.

http://www.innosilicon.com/A2.htm

200$ each chip if you order 50 pieces
roughly 10000$ = the actual price for the complete miner with 48 chips

these chips are too expencive and I am soure you can get cheapper one.
And if more people takes it we get discount also.

We need to search cheapper chips

I do not think Gridseed will make these chips anymore as they did sign a
deal with innosilicon

Gridseed GC3355 chips would cost nothing to buy now. Could worth the try, plus the firmware and the design to be improved already exists.
It all depends if they sell the chips and if they sell for really cheap.
They aren't that power hungry to move 28nm now. simply marketing.

I do not think that Gridseed will continue to manufacture the 3355 chips as they
could be signing a deal with Innosilicon to manufacture the A2 chips themselves now.
Good move on both parties as if they can ramp up production at both ends they
will take out most of the late to market competition.

If you can get 4Ghs out of 40 chips but draw approx 300w of power you would
only be able to obtain 20Ghs max on a 115vac@15amp service outlet. That is
getting the max (1750w) of a standard wall outlet, you are putting out 1500 watts.
The volt mod with higher freq settings pushing the chips really drives up the power
consumption.

These units are the first version on the ASIC Script miners and will draw the most
power thus making them not efficient enough as higher power miners. That being
said I have seen some company putting 6 stock freq units into a custom rack and
selling as a 33Ghs unit drawing 840 watts but price was way to high and around the  
same price of a newer 28nm 90Mhs miners using the A2 chips.

Good work to everyone inputing into this thread, I am going to mod my Blade soon
with the knowledge in this thread. Next round of blades coming out next week are in
the $900 range now!!

[Blisk]

This is far more cheapper miners as I see on net, but still it is preorder and 40nm chips
https://www.siliconart.com/

[J4bberwock]

This is far more cheapper miners as I see on net, but still it is preorder and 40nm chips
https://www.siliconart.com/

They are just in the price range of KNC and should ship at the same time or later.
Not that bad, but still not the best deal.
The good point is that they are selling lower price lower performance miners, unlike knc

[J4bberwock]

Did anyone check if these companies which sell those scrypt machines use the same chips or not?
I think they do. And if they can buy it, we can do it also.
 How hard is to made miner like that when you get chips, using directly raspberry pi on it.

you still need the firmware to communicate with the chips.
The electronic part can be done, but might not worth it if you only plan to do a few.

http://www.innosilicon.com/A2.htm

200$ each chip if you order 50 pieces
roughly 10000$ = the actual price for the complete miner with 48 chips

these chips are too expencive and I am soure you can get cheapper one.
And if more people takes it we get discount also.

We need to search cheapper chips

I do not think Gridseed will make these chips anymore as they did sign a
deal with innosilicon

Gridseed GC3355 chips would cost nothing to buy now. Could worth the try, plus the firmware and the design to be improved already exists.
It all depends if they sell the chips and if they sell for really cheap.
They aren't that power hungry to move 28nm now. simply marketing.

I do not think that Gridseed will continue to manufacture the 3355 chips as they
could be signing a deal with Innosilicon to manufacture the A2 chips themselves now.
Good move on both parties as if they can ramp up production at both ends they
will take out most of the late to market competition.

If you can get 4Ghs out of 40 chips but draw approx 300w of power you would
only be able to obtain 20Ghs max on a 115vac@15amp service outlet. That is
getting the max (1750w) of a standard wall outlet, you are putting out 1500 watts.
The volt mod with higher freq settings pushing the chips really drives up the power
consumption.

These units are the first version on the ASIC Script miners and will draw the most
power thus making them not efficient enough as higher power miners. That being
said I have seen some company putting 6 stock freq units into a custom rack and
selling as a 33Ghs unit drawing 840 watts but price was way to high and around the  
same price of a newer 28nm 90Mhs miners using the A2 chips.

Good work to everyone inputing into this thread, I am going to mod my Blade soon
with the knowledge in this thread. Next round of blades coming out next week are in
the $900 range now!!

your power usage looks way off.

My blade running overvolted at 7.2MH/s uses around 300w from the wall
5.8MH uses 170 watt from the wall (30 watt just for the psu at idle nothing plugged)

we should be able to reach around 56MH with 1500 watt
price for this have to be no more than 800$ for 14MH to be competitive,
flexible design by multiples of 14MH (200 chips) up to 42MH 1200 watt to easily power it with server PSU like the DL580G3 1300 watt (noisy but efficient)