Topic: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher - page 50. (Read 365630 times)

Mine hates it... if I clock Sha too high then the scrypt cores hashes red nonces...

750 Sha and 800 scrypt seems to be my max at ~6GH/s on tak.minebig.com and 300+ KH/s at scryptguild.

Starting to think scryptguild is causing some low hashrate cuz everyone else is getting better results at or above these clocks at other pools.

So stepped things up dual mining SHA and Scypt to 800Mhz, and I am getting 6.4GH/s and 340Mh/s avg per gridseed, they get mildly warm but nothing that i would be concerned about.
Anyone try dual mining under windows at 850Mhz yet, I dont want to push them too far when mining sha alongside scrypt as the sha asics can get fairly warm.
Edit I meat 350Kh/s

I am running a Gridseed hosted mining service, so I will be running a lot of them and am trying to come up with the most efficient custom power solution. See the link in my signature. I could switch to a gold rated power supply, but they are expensive and this 1000w has a lot of amps on its 12v rail. To get super custom I could use the 5v coming off the SATA cable to power USB hubs I suppose.

So many options..

EDIT: And I messed up with the CPU connectors.. I can only get 88 Gridseeds on there at the moment simply using splitters.

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?

anyone have any problems with the miner not hashing any shares. It did for a few days but now, just shows new blocks. No change to my bat file and I've tried all the miner software (cpuminer/cgminer/bfgminer). They all produce no shares, but also, no errors...

Any suggestions would be great.

Thanks!

Wow so much LOL

Let's all run 1,000 gridseeds with one connector.  Then we can have 10,000 gridseeds on one PSU LOL

you apparently did not get my lol

A PCIe cable is only rated for 150 watts. I think 24 per is too many... That's like 240 watts....

Try using splitters to get 15 for 150 watts. Although that might be sketchy i dunno, thats why i stopped at 12. I was hoping someone would weigh in on the design i posted earlier. From there I guess you could get 15 but I'm gonna leave a little wiggle room for OCing.

You could always buy a PSU with colored wires and separate all the 12v (yellow) and ground wires (black). Use the full power the the PSUs 12v rail and not waste the 12v wires in all the molex/sata/atx connector. I am maybe changing my mind and doing it this way as it will be cleaner and I can put exactly 15 barrel connectors per 3 yellow and blacks instead of maxing out at 12 with the splitters. Tie the 12v coming off PSU to a post and bring you barrel connectors off of that with 8 awg.

why not use the new bfgminer ?
http://cryptomining-blog.com/1396-download-bfgminer-3-10-0-for-windows-scrypt-mining-on-gridseed-5-chip-asics/#comment-394

this is so cool!!!!


I'm going to run all of my gridseeds - all 24 of them off one single pcie connection.

and since my PSU has five more PCEI connections I can run 144!

so cool!!!


LOL


http://i62.tinypic.com/fnss47.jpg

I am not trying to dissuade anyone from making their own cables or selling to others if that is is your goal.  But please, please overbuild them at a minimum.  I have been doing this for two years now with many hundreds of cables in the wild on many different platforms.  Just follow that small bit of advice for safety sake.  Know what wire gauges and connectors you are using and what they are capable of and please afford yourself 10-20% headroom just in case.

With the sizes of the farms I am seeing, fire is a real concern.  Be safe and happy mining.

Watch out as those are the 24AWG versions.

Aside from scripta adding support for it I haven't seen anything. 

Mr. Unicorn, has anyone been able to set up something similar to BAMT? Or Litecoin BAMT with this running? (or has anyone made an image to burn to a USB flash drive, set up to mine with gridseeds instead of cgminer / sgminer?)

No options.  There are some forked builds of bfgminer/cgminer which report hashrate better and have fine grained clock tuning.  I am waiting for one of the main miners to merge in the gridseed code before changing the instructions.  I really thought we would have cgminer/sgminer/bfgminer mainstream support by now?  I'm ok using the gridseed modified CPUminer but I don't like building out random third party git repos to mine with

Reserved.

Thanks for all your help. At this point, I am letting them run so I can individually set their mhz and difficulty level.

Question: Does minerd (cpuminer) have any options while running? I'd like to see cumulative shares submitted, errors & rejections, confirm which pool it is connected, etc. I tried searching cpuminer, but only found command line options. I figured out c to end it. But, that is about it.

Can an electrician help me out.... or armchair electrician!

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

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

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

Utilizing 12v 8 pin CPU Cable:[/b]
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.

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
$.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.

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...