(sorry for the size of the pictures)

Previous projects:
My Custom Case Build
My Custom Gridseed Case Build

Proud owner of a new A2 Mega Terminator (110 Mh/s). As with all my stuff I bought it just for fun and am not interested in ROI. I have an older A2 Terminator that runs well other than it occasionally turns off on its own. I suspect the power supply.

My new A2 Mega Terminator started right up and would mine as advertised for about 10 minutes and then turn off. The Pi controller would still be running but all the blades would shut down. After speaking to Innosilicon support we discovered that the power supply was the culprit. It would run great with 5 out of the 6 blades attached but with the 6th one it would turn off after about 10 minutes. Most likely due to it drawing more power than it could consistently provide.

This was my first direct experience with Innosilicon and I do have to say they were pleasant and professional to deal with. It can be difficult due to the time and language barrier but they did their best to ensure I was a satisfied customer.

After we determined it was the power supply they sourced a new vendor/model and shipped me a replacement. This took about a week to accomplish and during the wait I decided to use one of the AX1200i power supplies from my old GPU rig since I had just recently (finally) shut it down for good. Is this overkill? Most definitely. I would not go out and purchase one for use in an A2 Mega Terminator but since it was literally laying around with no plans for use and I wanted to start mining I decided to go for it.



If you are familiar with the AX1200i you know it is a rather long power supply but it fit! (barely)

For reference here is a picture of what it looked like with the stock power supply. Note that this power supply has exactly six Eight-Pin +12 V CPU Power Connectors with cable lengths perfectly spaced for the location of the blades. In order to use them with the blades which have standard 6 pin PCIe connectors they had to reverse the direction and FORCE them in to fit!   (the replacement power supply I eventually received from Innosilicon had the appropriate PCIe connectors)




First thing I had to do was carefully bend the housing to accommodate the different power plug location. I suppose I could have cut it off but it was easy enough just to bend it with pliers.




I tried to capture exactly how close the AX1200i fit inside the case. There is about 2-3mm of space. Barely enough to plug in the PCIe cables but it fit!



All done...not sure it looks much better but in the next post I will document how efficient it runs.



To be continued....

Was wondering if anyone would be interested in hosting their mining rigs at a premier world-class datacenter?

I'm not referring to a "warehouse" hosting environment but a top tier datacenter with customers the likes of yahoo, financial institutions, etc. with proper cooling and security. They can run without utility power almost indefinitely if necessary and have done so for months at a time in the past (personal experience).

Currently getting quotes from a few of these type of data center. So far I have received a quote from the data center where I have been hosting all of my server and other equipment for over 8 years but they are on the high side.

Data Center A
$340/month per kW     (ouch!)

Data Center B
$290/month per kW

Data Center C
pending

My goal is to get the price in the $150/month per kW (ex: AntMiner S2) but would anyone be interested?

[Dimensions]

I have one Gridseed case for sale:




It is made out of 80/20 Series 25 aluminum profiles. I am selling it because the bottom shelf does not have enough space to accommodate my Corsair AX1200i. It will easily fit the 12V 360W power supplies that are commonly used with Gridseed miners.

Comes as is. What you see is what you get. The 2 pieces to the right are to hold the accessories (PS/USB hubs) in the bottom part of the case. You will have to make holding brackets for the top part consisting of 8 pieces (16 brackets) and 2 pieces to the right (4 brackets). I was using this (link) and drilling the holes bigger. Alternatively you can use this: Link

I will include 25 bolts and nuts used with the corner brackets to attach the additional pieces. ($16.50 value). You only need 20.

Dimensions
Length (bottom part)  597mm
Length (top part)     600mm
Width                 448mm
Height                157.563mm (132.563mm+25mm)

I paid $157.87 for the raw parts. Make me an offer+shipping.
I can ship it assembled (bottom part except for the two pieces to the right) but I think it may be cheaper if it is shipped unassembled.

BTC/CC/Paypal accepted.

I have two Gridseed wiibox controllers available if anyone is interested.

Just the controllers. You will need a USB 2.0 A Male to Micro B (5-Pin) cable and wall plug to connect the wiibox to power. Most 5v 1A phone adaptors will work.

Paid $100 each so make me an offer.

Free USPS shipping.

[First design idea (abandoned):]

So enough time has past that I have forgotten how much effort it was to make my first custom case  

Using this forum post as my scratchpad for ideas, dimensions, etc.

First design idea (abandoned):

This time I will be making a case (most likely) out of acrylic sheets and metal rods to house Gridseed miners.
Dimensions will be similar to my first case as it will need to be mounted in a server rack.

Preliminary Dimensions
Length                       600mm
Width                        448mm
Height - Utility Shelf    133.35mm (5.25") 3U
       - Rod size            127mm (133.35 - 3.175 - 3.175 = 127)
Height - Miner Shelf        88.9mm (3.5") 2U
       - Rod size         85.725mm (88.9 - 3.175 = 85.725)
Holes                         97mm
Acrylic thickness          3.175mm (1/8" or 0.125")

Miner weight  0.9375 lbs x 20 = 18.75 lbs

Note: May reduce the rods length in the Utility Shelf section so the case can be removed without binding on adjacent rack equipment:  - 0.787mm (- 0.031")

Here is my inspiration:



Bottom level will be for power supply, USB hubs and controllers.

May quickly move from the supplied power supplies to a Corsair AX1200 (or AX1200i as I don't think their making the AX1200 anymore). This will require more space for the bottom level. Watching this thread for the required cables: https://bitcointalk.org/index.php?topic=74397.msg5492169#msg5492169

Top level will be for the Gridseed miners but unlike the picture I will have the fans blowing up. From here it can stack more levels depending on how much space the power supplies and accessories the bottom level can hold.

Looking at having a profession company cut the acrylic sheets.

Layout:

Red dots - location of the rods
Blue dot - main access hole for wires
Yellow dot - optional secondary access hole for wires (of course you can use any hole for miners or wires)

Picture of what I envision it looking like (wider with holes):

Second design idea (completed):

Using 80/20 instead of acrylic.

Here is my new inspiration:


Dimensions
Length                       600mm
Width                        448mm
Height - 3U Utility Shelf    133.35mm (5.25")
Height - 3U Miner Shelf(s)   133.35mm (5.25")

Miner weight  0.9375 lbs x 20 = 18.75 lbs

Note: 133.35mm (5.25") -  0.787mm (- 0.031") Reduced the length in the Utility Shelf section so the case can be removed without binding on adjacent rack equipment:  - 0.787mm (- 0.031")



Cost
80/20 parts with shipping and tax: $
Corner Braces: $
Tools: $

Finished Case (04-15-2014)

[p2pool/bitcoin/networks.pyp2pool/networks.py]

Since it is so hard to find all the information in one location I thought I would start a thread detailing the changes necessary to make most POW altcoins work with p2pool. Thanks go out to all those who have posted this information elsewhere on the forum.

There are two files that will need to be changed:

p2pool/bitcoin/networks.py
p2pool/networks.py

Will break these down in the next two posts. Over time I will update to reflect new information.

Note: When a coin changes it's spec p2pool needs to be changed to match.
Note: All nodes must run the same code. If there are any changes [some exceptions] it is recommended to start a new p2pool share chain by changing IDENTIFIER and PREFIX and deleting the p2pool/data folder.

I maintain a GitHub that I keep updated of the coins I run on xpool.net here:
https://github.com/CartmanSPC/p2pool

Here are some other popular repositories:
https://github.com/narken/p2pool-altcoins
https://github.com/Rav3nPL/p2pool-rav

Please use caution when using some of these repositories as they may not have been updated to reflect changed coin specs.

Link to the original source by forrestv (BTC, LTC, TRC):
https://github.com/forrestv/p2pool

This support thread is for discussion of the source code and setup of P2Pool for the following coins:

Digitalcoin
Worldcoin
Craftcoin
Casinocoin
Anoncoin

Source:
https://github.com/CartmanSPC/p2pool

Please use this thread for questions on setting up your own node and to make change suggestions. I am hoping that other P2Pool ops can help out new people wanting to set up their own. I will do my best to answer questions as time permits.

[Dimensions]

In the process of building a custom case for my mining rig. Thought others may find it interesting to see the progress.

It will be going into a 19" rack so the dimensions were made to fit.

Dimensions
Length     600mm
Width      446mm
Height     221mm (5U)


What I have built so far



Using rivets to hold the pieces together



Made one of the holes too close to the others so the rivet wouldn't fit :/
Luckily I had enough room to drill another hole. Lesson learned.



Will update my progress as I get further into it.

Just an idea...not sure if it is a good one or not.

Develop the wallet/coin to throttle new blocks found based on an average of blocks found over the previous "x" period of time. The idea is that if a pool wallet has not consistently been finding blocks at a certain rate any new flash mining would only continue to find blocks at their average rate. The block finding rate should slowly increase over time based on the continued hash rate being utilized.

Just wanted to throw it out there to the community.

[New Miner Limited Time Promotion]

Digitalcoin P2Pool

PPLNS P2Pool - World-class Data Center - Dedicated Enterprise Class Equipment - 1% fee

New Miner Limited Time Promotion

In order to attract new miners we are offering 5 DGC for every 500 Mh/s you put on the pool (12 hour minimum). Please PM me your mining address for payment. Join us on Freenode #digitalcoin for an addional 10 DGC for setting up an IRC wallet.

Stratum
     stratum+tcp://dgc.xpool.net:8810

Getwork:
     http://dgc.xpool.net:8810

Login

     Username: YourWalletAddress
     Password: Any password you like

Example Connection Strings

     cgminer -o stratum+tcp://dgc.xpool.net:8810 -u YourWalletAddress -p password --scrypt --queue 0 --scan-time 5 --expiry 10

Make sure to replace YourWalletAddress

Features

• No account registration or passwords to remember
• Instant payout when a block is found
• Block finder bonus (0.5% of the block payout)
• Transaction fees given to miners
• No coins stored on pool server
• Maintain your PPLNS level switching between connected p2pool nodes
• Payout for your shares continue from P2Pool if a node goes down

Share Difficulty

You can set the level of difficulty sent to your miner by appending a difficulty setting to your wallet address.

The following difficulty settings can be used as a guide:

Kh/s        Difficulty        
1           +0.00000116
50          +0.000058
100         +0.000116
250         +0.00029
500         +0.00058
750         +0.00087
1000        +0.00116        
1250        +0.00145
1500        +0.00174        
1750        +0.00203
2000        +0.00232


To determine the difficulty for your specific hash rate multiply by 0.00000116
For example, if your miner is capable of 1440 Kh/s:

1440 * 0.00000116 = 0.0016704

Example Connection String for a miner capable of 1440 Kh/s:

cgminer -o stratum+tcp://crc.xpool.net:8830 -u YourWalletAddress+0.0016704 -p password --scrypt --queue 0 --scan-time 5 --expiry 10

Live Support

I try to be on IRC as much as possible on these channels: #craftcoin, #xpool, #p2pool, #bitcoin, #digitalcoin, #litecoin, #worldcoin
New block announcements are made in the #craftcoin channel.

Frequently Asked Questions

Q: Why does my miner report so many longpoll/stratum from pool request work restarts?
A: This is normal. It is how often p2pool shares are generated.

[Login]

Craftcoin P2Pool

PPLNS P2Pool - World-class Data Center - Dedicated Enterprise Class Equipment - 1% fee

Stratum
     stratum+tcp://crc.xpool.net:8830

Getwork:
     http://crc.xpool.net:8830

Login

     Username: YourWalletAddress
     Password: Any password you like


Example Connection Strings

     cgminer -o stratum+tcp://crc.xpool.net:8830 -u YourWalletAddress -p password --scrypt

Make sure to replace YourWalletAddress


Features

• No account registration or passwords to remember
• Instant payout when a block is found
• Block finder bonus (0.5% of the block payout)
• Transaction fees given to miners
• No coins stored on pool server
• Maintain your PPLNS level switching between connected p2pool nodes
• Payout for your shares continue from P2Pool if a node goes down
• 3 hour PPLNS window

Statistics:

     http://crc.xpool.net:8830

Internet Explorer may not display current data after a browser refresh. Please try using Chrome instead.


Share Difficulty

You can set the level of difficulty sent to your miner by appending a difficulty setting to your wallet address.

The following difficulty settings can be used as a guide:

Kh/s        Difficulty        
1           +0.00000116
50          +0.000058
100         +0.000116
250         +0.00029
500         +0.00058
750         +0.00087
1000        +0.00116        
1250        +0.00145
1500        +0.00174        
1750        +0.00203
2000        +0.00232


To determine the difficulty for your specific hash rate multiply by 0.00000116
For example, if your miner is capable of 1440 Kh/s:

1440 * 0.00000116 = 0.0016704

Example Connection String for a miner capable of 1440 Kh/s:

cgminer -o stratum+tcp://crc.xpool.net:8830 -u YourWalletAddress+0.0016704 -p password --scrypt

Live Support

I try to be on IRC as much as possible on these channels: #craftcoin, #xpool, #p2pool, #bitcoin, #digitalcoin, #litecoin, #worldcoin
New block announcements are made in the #craftcoin channel.

Frequently Asked Questions

Q: Why does my miner report so many longpoll/stratum from pool request work restarts?
A: This is normal. It is how often p2pool shares are generated.


Start your own P2Pool Node

https://github.com/craftcoin/p2pool-crc

Send me a PM so I can add you to the notify list of source code changes.

Public Craftcoin P2Pool nodes
P2Pool nodes combine their local hash rates to the greater P2Pool hash rate. Use the one with the lowest ping to your miner or start your own local node. Switching between nodes maintains your PPLNS payout level.

[xPool.net]

xPool.net

BTC - LTC - DGC - WDC

PPLNS P2Pool - World-class Data Center - Dedicated Enterprise Class Equipment - 1% fee

Features

• No account registration or passwords to remember
• Instant payout when a block is found
• Block finder bonus (0.5% of the block payout)
• Transaction fees given to miners
• No coins stored on pool server
• Maintain your PPLNS level switching between connected p2pools nodes
• Payout for your shares continue from P2Pool if a node goes down
• 3 hour PPLNS window for Digitalcoin, Worldcoin, and Craftcoin

Bitcoin
     stratum+tcp://btc.xpool.net:9332

Litecoin
     stratum+tcp://ltc.xpool.net:9327

Digitalcoin (beta)
     stratum+tcp://dgc.xpool.net:8810

Worldcoin (beta)
     stratum+tcp://wdc.xpool.net:8820

Craftcoin (beta)
     stratum+tcp://crc.xpool.net:8830

For getwork clients replace stratum+tcp:// with http://


Login

     Username: Your Wallet Address
     Password: Any password you like


Example Connection Strings

     Bitcoin
     cgminer -o stratum+tcp://btc.xpool.net:9332 -u YourWalletAddress -p password

     Litecoin
     cgminer -o stratum+tcp://ltc.xpool.net:9327 -u YourWalletAddress -p password --scrypt

     Digitalcoin
     cgminer -o stratum+tcp://dgc.xpool.net:8810 -u YourWalletAddress -p password --scrypt --queue 0 --scan-time 5 --expiry 10

     Worldcoin
     cgminer -o stratum+tcp://wdc.xpool.net:8820 -u YourWalletAddress -p password --scrypt --queue 0 --scan-time 5 --expiry 10

     Craftcoin
     cgminer -o stratum+tcp://crc.xpool.net:8830 -u YourWalletAddress -p password --scrypt

Make sure to replace YourWalletAddress


Statistics:

     Bitcoin
     http://btc.xpool.net:9332

     Litecoin
     http://ltc.xpool.net:9327

     Digitalcoin
     http://dgc.xpool.net:8810

     Worldcoin
     http://wdc.xpool.net:8820

     Craftcoin
     http://crc.xpool.net:8830

Internet Explorer may not display current data after a browser refresh. Please try using Chrome instead.


Share Difficulty

You can set the level of difficulty sent to your miner by appending a difficulty setting to your wallet address.

The following difficulty settings can be used as a guide:

Kh/s        Difficulty        
1           +0.00000116
50          +0.000058
100         +0.000116
250         +0.00029
500         +0.00058
750         +0.00087
1000        +0.00116        
1250        +0.00145
1500        +0.00174        
1750        +0.00203
2000        +0.00232


To determine the difficulty for your specific hash rate multiply by 0.00000116
For example, if your miner is capable of 1440 Kh/s:

1440 * 0.00000116 = 0.0016704

Example Connection String for a miner capable of 1440 Kh/s:

cgminer -o stratum+tcp://ltc.xpool.net:9327 -u LQgjHVugooxdrEf86Seaxj1BC7G7HjWPfe+0.0016704 -p password --scrypt

Live Support

I try to be on IRC as much as possible on these channels: #bitcoin, #digitalcoin, #litecoin, #p2pool, #worldcoin, #xpool
New block announcements are made in the #xpool channel except for WDC. Go to the #worldcoin channel for WDC block announcements.

Frequently Asked Questions

Q: Why does my miner report so many longpoll/stratum from pool request work restarts?
A: This is normal. It is how often p2pool shares are generated.

More info:

https://bitcointalk.org/index.php?topic=217139

[xPool.net]

xPool.net

DGC - WDC - CRC - CSC

PPLNS P2Pool - Dedicated Enterprise Class Equipment - Premier Data Center - 1% fee

Features

• No account registration or passwords to remember
• Found blocks instantly paid - No waiting for confirmations
• Block finder bonus (0.5% of the block payout)
• Miners receive all transaction fees
• No coins stored on the pool
• PPLNS maintained switching between nodes
• Shares paid from connected nodes in case of an outage
• 3 hour PPLNS window

Login

     Username: YourWalletAddress
     Password: Anything - pool does not check

Do NOT use an online or exchange wallet address!
They will have no way of knowing that the mined coins belong to you. ONLY use an address from your own personal wallet.


Digitalcoin
     stratum+tcp://xpool.net:8810

Worldcoin
     stratum+tcp://xpool.net:8820

Craftcoin
     stratum+tcp://xpool.net:8830

Casinocoin
     stratum+tcp://xpool.net:8840

For getwork clients replace stratum+tcp:// with http://


Example Connection Strings

     Digitalcoin
     cgminer --scrypt -o stratum+tcp://xpool.net:8810 -u YourWalletAddress -p password

     Worldcoin
     cgminer --scrypt -o stratum+tcp://xpool.net:8820 -u YourWalletAddress -p password

     Craftcoin
     cgminer --scrypt -o stratum+tcp://xpool.net:8830 -u YourWalletAddress -p password

     Casinocoin
     cgminer --scrypt -o stratum+tcp://xpool.net:8840 -u YourWalletAddress -p password

Make sure to replace YourWalletAddress with one from your personal wallet. Do NOT use an online or exchange wallets address!


Statistics:

     Digitalcoin
     http://xpool.net:8810

     Worldcoin
     http://xpool.net:8820

     Craftcoin
     http://xpool.net:8830

     Casinocoin
     http://xpool.net:8840

Internet Explorer may not display current data after a browser refresh. Please try using Chrome instead.

Live Support

I try to be on IRC as much as possible on these channels: #digitalcoin, #worldcoin, #craftcoin, #casinocoin, #xpool, #p2pool
New block announcements are made in the #xpool channel except for CRC. Go to the #craftcoin channel for CRC block announcements.

Frequently Asked Questions

http://xpool.net/faq.html

Start your own P2Pool Node

In the spirit of P2Pool I encourage you to start your own node by freely making the source code available:

https://github.com/CartmanSPC/p2pool

I am in the process of building a custom 5U rack mount case and thought another set of eyes on the dimensions would be good.

Please check my dimensions:

L x W x H
698mm x 448mm x 221mm
27.480314961" x 17.637795276" x 8.7007874016"

448mm for the width is on the high side but I want to have as much space for cards as possible.
Max width from Wikipedia is 450.85 mm (17.75 inches)

Was originally going to use sliding rails but that cut into the width so I'm going with these stationary rails instead:

http://www.newegg.com/Product/Product.aspx?Item=N82E16816323006

...or will search for something cheaper later.

Max height for 5U is 221.463mm (8.719") I believe. Cut a little off to be on the safe side at an even 221mm (8.7007874016").

Any suggestions are appreciated!




Not to scale

Anyone run into this?

The GPU #, temp, and RPM lines are mixed up:

http://www.flickr.com/photos/95598166@N05/8724607830/

Sorry about the hyperlink to flickr. What do you use to embed the image?

Hi everyone. Was wondering if you could help me with trying to mine LTC?
I am able to mine BTC fine but I just can't seem to get LTC working with cgminer

Here is my config:

cgminer --scrypt -o stratum+tcp://stratum.us.give-me-ltc.com:3333 -u worker.1 -p password --intensity 10 --shaders 2048 --worksize 256 --thread-concurrency 8192 --gpu-threads 2

I always get a windows message box saying cgminer.exe has stopped working.

I tried cgminer --benchmark and it worked fine but when I try cgminer --benchmark --scrypt it errors with a windows message box saying cgminer.exe has stopped working.
It seems as if --scrypt is causing it to crash



If I try cgminer --scrypt --verbose I still get the same error after entering the password.

Code:

 [2013-04-29 18:44:57] Started cgminer 3.1.0
 [2013-04-29 18:45:19] Testing pool stratum+tcp://stratum.us.give-me-ltc.com:333
3
 [2013-04-29 18:45:22] JSON-RPC decode failed: [
   20,
   "_stratum_mining_subscribe() takes exactly 1 positional argument (2 given)",
   "Traceback (most recent call last):\n  File \"/home/litecoin/eloipool/stratum
server.py\", line 77, in found_terminator\n    rv = getattr(self, funcname)(*rpc
['params'])\nTypeError: _stratum_mining_subscribe() takes exactly 1 positional a
rgument (2 given)\n"
]
 [2013-04-29 18:45:23] Stratum authorisation success for pool 0
 [2013-04-29 18:45:23] Pool 0 stratum+tcp://stratum.us.give-me-ltc.com:3333 aliv
e

c:\cgminer-3.1.0-windows>

Any idea?  Using a 7970 on Windows 8 x64 with cgminer 3.1.0 (also tried 3.0.1). Driver version 9.14.10.0969. Catalyst 13.4

After spending the last two days trying to select a motherboard I have finally decided on the Gigabyte GA-X79-UP4.

Was initially going to use the Gigabyte GA-990FXA-UD7 but read that Intel CPUs use less power when idle. I also have a personal preference to Intel.

Here are my reasons for selecting the Gigabyte GA-X79-UP4

• The Gigabyte GA-X79-UP4 allows me to use up to 4 GPUs without risers in a HAF XM.
• If I decide to later use a custom cage it will let me go up to 6 GPUs with risers.
• I bought into Gigabytes "Ultra Durable 5" marketing.
• Only a little more than the GA-X79-UD3 with "Ultra Durable 3".
• 5 year warrantee.
• Availability

I think I'll be ok in regard to cooling as this will be placed in a data center with an ambient temperature of 61 degrees.

Having searched the forum it doesn't appear that this motherboard has been used much. I read that the MSI 890FXA-GD70 is the one to get but it is hard to come by. The MSI Big Bang-Marshal would be nice but twice the price for two more slots.

Any feedback would be appreciated!