[GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher

[miaviator]

I know I read it in one of the gridseed threads somewhere, but I cant seem to find it now. Can anyone tell me what the specific power requirements of a 5 chip Gridseed device is? Thanks.

?

The board says 100ma via USB and 12v (IDK amps) via the 2.5mm barrel plug.

All the power draws are in the power and freqs section of the OP.

Amps is what I'm trying to find, I think I read somewhere that a power supply for these should have 7 amps available, which sounds really high. Maybe 7 amps is for the whole 3Mh kit, when using dual mode. Thinking I'll just rig up a molex>barrel connector cable so I can plug these into the psu running the rig I plan to add them to. Unless Cablez can get me a cable in the mail real soon, but I'm betting he is pretty swamped at the moment.

Single mode is 6W 12V .5A max 10W 12V .84A dual mode is 60w 12V 5A max 100W 12V 8.4A so I would say the 7AMP recommendation is SPOT ON for providing max needed power for dual mode!

So if you are running in Scrypt mode we can safely say 1Amp/1,000ma provided will be a standard number and plenty of power for scrypt mode.

Once cablez finalizes a standardized design he will be able to send out a lot of orders pretty quick.

[1713866806]

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[SummersideGuy]

What is the sefest maximum OC to push this board to when just mining Scrypt? I have the miner hooked directly to my win64 pc since I can not get my hands on a powered usb hub at 10PM at night and just mining scrypt i have it at 850, is it safe to push it much higher??
Also on the gridseed WIIboard there is a micro usb and full size usb, maybe i had them setup wrong, I had the power going to the micro usb and the miner hooked to the full size usb. is this correct?

[smtn512]

Single mode is 6W 12V .5A max 10W 12V .84A dual mode is 60w 12V 5A max 100W 12V 8.4A so I would say the 7AMP recommendation is SPOT ON for providing max needed power for dual mode!

So if you are running in Scrypt mode we can safely say 1Amp/1,000ma provided will be a standard number and plenty of power for scrypt mode.

Once cablez finalizes a standardized design he will be able to send out a lot of orders pretty quick.

Thanks for following up on this! Looks like I have a power supply in the junk bin that will at least get one of these running while Cablez hammers out a solution or I wire up some molex connectors myself. Would be nice if there was a working dual mode for Winblows (my rigs all run windows, I know...), but probably safer to not bother if I'm gonna wire these up myself. Looks like I just found a use for all these molex>pci connectors that come with GPUs. Now to find the soldering iron.... :-)

What is the sefest maximum OC to push this board to when just mining Scrypt? I have the miner hooked directly to my win64 pc since I can not get my hands on a powered usb hub at 10PM at night and just mining scrypt i have it at 850, is it safe to push it much higher??

I've seen users report using 900mhz, but most say 850 performs best. Seems everyone changes these in 50mhz increments, can they be changed in 25, 10mhz intervals or is 50mhz changes all they can accept?

[SummersideGuy]

Single mode is 6W 12V .5A max 10W 12V .84A dual mode is 60w 12V 5A max 100W 12V 8.4A so I would say the 7AMP recommendation is SPOT ON for providing max needed power for dual mode!

So if you are running in Scrypt mode we can safely say 1Amp/1,000ma provided will be a standard number and plenty of power for scrypt mode.

Once cablez finalizes a standardized design he will be able to send out a lot of orders pretty quick.

Thanks for following up on this! Looks like I have a power supply in the junk bin that will at least get one of these running while Cablez hammers out a solution or I wire up some molex connectors myself. Would be nice if there was a working dual mode for Winblows (my rigs all run windows, I know...), but probably safer to not bother if I'm gonna wire these up myself. Looks like I just found a use for all these molex>pci connectors that come with GPUs. Now to find the soldering iron.... :-)

What is the sefest maximum OC to push this board to when just mining Scrypt? I have the miner hooked directly to my win64 pc since I can not get my hands on a powered usb hub at 10PM at night and just mining scrypt i have it at 850, is it safe to push it much higher??

I've seen users report using 900mhz, but most say 850 performs best. Seems everyone changes these in 50mhz increments, can they be changed in 25, 10mhz intervals or is 50mhz changes all they can accept?

I have tried increments of 10 it just defaults back to 600, I will give 900 a try for overnight

[miaviator]

Single mode is 6W 12V .5A max 10W 12V .84A dual mode is 60w 12V 5A max 100W 12V 8.4A so I would say the 7AMP recommendation is SPOT ON for providing max needed power for dual mode!

So if you are running in Scrypt mode we can safely say 1Amp/1,000ma provided will be a standard number and plenty of power for scrypt mode.

Once cablez finalizes a standardized design he will be able to send out a lot of orders pretty quick.

Thanks for following up on this! Looks like I have a power supply in the junk bin that will at least get one of these running while Cablez hammers out a solution or I wire up some molex connectors myself. Would be nice if there was a working dual mode for Winblows (my rigs all run windows, I know...), but probably safer to not bother if I'm gonna wire these up myself. Looks like I just found a use for all these molex>pci connectors that come with GPUs. Now to find the soldering iron.... :-)

What is the sefest maximum OC to push this board to when just mining Scrypt? I have the miner hooked directly to my win64 pc since I can not get my hands on a powered usb hub at 10PM at night and just mining scrypt i have it at 850, is it safe to push it much higher??

I've seen users report using 900mhz, but most say 850 performs best. Seems everyone changes these in 50mhz increments, can they be changed in 25, 10mhz intervals or is 50mhz changes all they can accept?

I have tried increments of 10 it just defaults back to 600, I will give 900 a try for overnight

I scripted 600-900 in 1,5,10,25,50,100 increments.  My units do 600 or 50m increments.

I have found that 750 - 850 is the best spot for clocks.

What is the issue running in dual mode in windows?  I can pull my unit out and test it all/ write up single unit dual mining if needed.  It'll be win7 64 bit.

[SummersideGuy]

Single mode is 6W 12V .5A max 10W 12V .84A dual mode is 60w 12V 5A max 100W 12V 8.4A so I would say the 7AMP recommendation is SPOT ON for providing max needed power for dual mode!

So if you are running in Scrypt mode we can safely say 1Amp/1,000ma provided will be a standard number and plenty of power for scrypt mode.

Once cablez finalizes a standardized design he will be able to send out a lot of orders pretty quick.

Thanks for following up on this! Looks like I have a power supply in the junk bin that will at least get one of these running while Cablez hammers out a solution or I wire up some molex connectors myself. Would be nice if there was a working dual mode for Winblows (my rigs all run windows, I know...), but probably safer to not bother if I'm gonna wire these up myself. Looks like I just found a use for all these molex>pci connectors that come with GPUs. Now to find the soldering iron.... :-)

What is the sefest maximum OC to push this board to when just mining Scrypt? I have the miner hooked directly to my win64 pc since I can not get my hands on a powered usb hub at 10PM at night and just mining scrypt i have it at 850, is it safe to push it much higher??

I've seen users report using 900mhz, but most say 850 performs best. Seems everyone changes these in 50mhz increments, can they be changed in 25, 10mhz intervals or is 50mhz changes all they can accept?

I have tried increments of 10 it just defaults back to 600, I will give 900 a try for overnight

I scripted 600-900 in 1,5,10,25,50,100 increments.  My units do 600 or 50m increments.

I have found that 750 - 850 is the best spot for clocks.

What is the issue running in dual mode in windows?  I can pull my unit out and test it all/ write up single unit dual mining if needed.  It'll be win7 64 bit.

Is someone working on a way to dual mine with these under windows without the control board???

[daddyfatsax]

Hopefully bfgminer, but there is no timeline on that.

[smtn512]

I scripted 600-900 in 1,5,10,25,50,100 increments.  My units do 600 or 50m increments.

I have found that 750 - 850 is the best spot for clocks.

What is the issue running in dual mode in windows?  I can pull my unit out and test it all/ write up single unit dual mining if needed.  It'll be win7 64 bit.

Not sure there is an issue, just no reports of any users doing it >.> I don't have my units yet, they're still in the mail. Looking at your dual mode for linux writeup, looks like most of that info should be relevant to succeeding with dual mode in windows. My biggest concern with dual mining is amp draw on the PSU cables.... 

It really depends what mode you are running in. For scrypt only mode 3 plugs is actually way underpowered as you can get just about 20 devices @10W on a single PCIe cable.

The 18AWG wire can handle 10A and the minifit pins/housings are rated for 9A. Theoretically you can pull 9Ax12V=108W per wire pair. I would not push it that far but safely getting 80W per wire pair has been done ad infinum by miners. This gives 80W*3pairs=240W per PCIe cable.

Those numbers from the PCIe spec are really safe and are meant to protect the graphics card and motherboard which we will not be using in this instance.

According to this I would only be able to run 1 unit per wire pair (3 per pcie or 1 per molex) in dual mode, which drastically reduces the amount of devices I can put on a single machine. Or am I missing something?

If you decide to expand the writeup for dual mode in windows, I'll be sure to point some hash power towards your donation address once I've got everything running smoothly.

[miaviator]

I scripted 600-900 in 1,5,10,25,50,100 increments.  My units do 600 or 50m increments.

I have found that 750 - 850 is the best spot for clocks.

What is the issue running in dual mode in windows?  I can pull my unit out and test it all/ write up single unit dual mining if needed.  It'll be win7 64 bit.

Not sure there is an issue, just no reports of any users doing it >.> I don't have my units yet, they're still in the mail. Looking at your dual mode for linux writeup, looks like most of that info should be relevant to succeeding with dual mode in windows. My biggest concern with dual mining is amp draw on the PSU cables.... 

It really depends what mode you are running in. For scrypt only mode 3 plugs is actually way underpowered as you can get just about 20 devices @10W on a single PCIe cable.

The 18AWG wire can handle 10A and the minifit pins/housings are rated for 9A. Theoretically you can pull 9Ax12V=108W per wire pair. I would not push it that far but safely getting 80W per wire pair has been done ad infinum by miners. This gives 80W*3pairs=240W per PCIe cable.

Those numbers from the PCIe spec are really safe and are meant to protect the graphics card and motherboard which we will not be using in this instance.

According to this I would only be able to run 1 unit per wire pair (3 per pcie or 1 per molex) in dual mode, which drastically reduces the amount of devices I can put on a single machine. Or am I missing something?

If you decide to expand the writeup for dual mode in windows, I'll be sure to point some hash power towards your donation address once I've got everything running smoothly.

3 per pci-e and/or 1 per molex is correct for dual mode.

I'll try to do windows dual in the morning,

[MysteryX]

Can someone post links to some AC adapters from Amazon (USA) that would work for these? I don't want to play with wires

Thanks in advance.

Edit: Are these good to go? http://www.amazon.com/gp/product/B003TUMDWG/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A1YTQ37YMBKHMD

[Girhes]

I scripted 600-900 in 1,5,10,25,50,100 increments.  My units do 600 or 50m increments.

It's because both cgminer and cpuminer set frequencies based on predefined init messages, and they've only made a few of those. These are the frequencies supported by cpuminer:

static const char *str_frequency[] = {
"250", "400", "450", "500", "550", "600",
"650", "675", "700", "750", "800", "850", "900",
NULL
};

[daddyfatsax]

How many would be possible in scrypt mode per PCIe? Think I saw cablez saying he could wire 15 to 1 PCIe cable. So 10 on 1 in scrypt mode should work? Don't want to try my new toys tomorrow.

[chanberg]

Selling some molex to TPLink cables if you guys are interested

https://bitcointalk.org/index.php?topic=501543.0

[copyfile]

I just installed my first gridseed miner to raspberry pi. I looks like it's working, only there i around 1 minute time between the "yay's". Is there something i do wrong? Or is this normal? The stats of my pool are not visible yet so i can't check there yet!

[scryptographer]

I just installed my first gridseed miner to raspberry pi. I looks like it's working, only there i around 1 minute time between the "yay's". Is there something i do wrong? Or is this normal? The stats of my pool are not visible yet so i can't check there yet!

It looks quite normal. The long wait between shares is due to Clevermining et.al. only accepting rather high difficulty shares (512). In my experience I get about 35-40 accepted shares per hour per device running at 800MHz

[worldlybedouin]

It looks quite normal. The long wait between shares is due to Clevermining et.al. only accepting rather high difficulty shares (512). In my experience I get about 35-40 accepted shares per hour per device running at 800MHz

Agreed looks normal -- pretty much the same as on my RasPi.  

As for the time it takes to submit shares, yes, these miners work better on lower difficulty coins/pools...

[miaviator]

What is the sefest maximum OC to push this board to when just mining Scrypt? I have the miner hooked directly to my win64 pc since I can not get my hands on a powered usb hub at 10PM at night and just mining scrypt i have it at 850, is it safe to push it much higher??
Also on the gridseed WIIboard there is a micro usb and full size usb, maybe i had them setup wrong, I had the power going to the micro usb and the miner hooked to the full size usb. is this correct?

Haven't seen a limit yet.

You can OC them to 1200 in windows with this: http://cryptomining-blog.com/1228-download-cpuminer-oc-edition-for-gridseed-5-chip-gc3355-asics/

850 is the highest I've seen a performance increase from anyone.  Looks like 900+ will just cause HW errors and extra power draw.

[miaviator]

Selling some molex to TPLink cables if you guys are interested

https://bitcointalk.org/index.php?topic=501543.0

Lol.  I'm selling three gridseeds with 90 days hosting: https://bitcointalk.org/index.php?topic=471764.0

Damn chanberg those are nice looking cables!

[miaviator]

How many would be possible in scrypt mode per PCIe? Think I saw cablez saying he could wire 15 to 1 PCIe cable. So 10 on 1 in scrypt mode should work? Don't want to try my new toys tomorrow.

https://bitcointalk.org/index.php?topic=494625.msg5511232#msg5511232

For Dual mode you can safely run 3 miners per PCI-E
For Scrypt mode you can run at least 10 per PCI-E 1-5 per molex.
You could run 10 on molex but I wouldn't take it that high as you could then load 1 PSU lead to 400Watts and burn down the building. 

The issue is that if you load 10-20 on a 6 wire PCI-E you would be fine to run in scrypt mode.  But if the btc cores activated for testing or failure or zuess then you risk starting a fire and a loud pop.  I'm using 3 and 4 per pci-e lead.

[miaviator]

* You can now lease out gridseed's on LeaseRig.net: https://bitcointalk.org/index.php?topic=414009.0

This is for windows and linux users.

Follow the proxy setup guide



I included a warning in bold: This Device WILL FLUXUATE WILDLY in hashrate.  It will average ABOVE the 250Kh/s you pay for!!!