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

[favelle75]

Had a couple that have done that and ended up returning them for replacement. To have that many though is suspicious.

Found out the problem man. Power supply issues. Fixed it and all 10 are back to hashing perfectly!

Good to hear! Replacement is a bitch. Mine were not a power supply problem though :/

Dang...did you get it resolved though?

[CartmanSPC]

Had a couple that have done that and ended up returning them for replacement. To have that many though is suspicious.

Found out the problem man. Power supply issues. Fixed it and all 10 are back to hashing perfectly!

Good to hear! Replacement is a bitch. Mine were not a power supply problem though :/

Dang...did you get it resolved though?

Almost..waiting on just one more replacement...should of been here today but it looks like it will come tomorrow.

[gtraah]

Was wondering if someone can help me out, this post has a few replies which tells you the story.....

Basically I am trying to repair 2 pods that have burnt out 2 ferrite beads for no apparent reason as they were working fine initially, yes I have Vmod3 on these with extra cooling and they did go through a test phase which passed fine... 

Here is the post >>>>>>>>>https://bitcointalk.org/index.php?topic=519112.msg6741748#msg6741748

[ben62884]

2 gridseed questions related to scrypt only hashing:

1) What is the maximum people have clocked the 5 chip gridseeds up to with acceptable results?
I normally run mine at 900 (381K)  although they appear to run at 950 (402K/s) with few hardware errors (at least in my limited testing).
At 975 they do about 412/413K.
At 1000 they do 423K.

2) What is an "acceptable" amount of hardware errors?   1 a minute?  5? 10?

3) Is there a way with cgminer to specify a frequency for each specific gridseed without using a separate instance of cgminer?

[edit:  I see now with this version of cgminer you can specify per device speeds:  https://github.com/girnyau/cgminer-gc3355, for example
--gridseed-options freq=888 --gridseed-freq 8D74488A4949=900,8D96227B5449=900,8D7357785355=875
I found this on an earlier post by Girhes ]


I'm using cgminer.

Thank you so much for your post!  I can now run all 4 of my GS at different core speeds, thanks!

[gtraah]

I voltmodded mine i get 510kh @ 1200freq Most of my pods have NO HW and some have very little.. Not enough to worry about.. I have compared them to stock pods and these demolish them in accepted shares... You cannot go wrong with hardware clocking

[gtraah]

Can someone please confirm that this mofset will work with our Grids?

http://www.ebay.com/itm/SI7456DP-Vishay-Siliconix-Mosfet-N-So-8-/130943957886?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item1e7cde3b7e

[favelle75]

Power supply question. When I tap into a 12v (yellow), in a typical power supply, does it matter if I spread it around to say PCI, SATA, CPU, etc etc cables? If I wanted to run 2 Gridseed Blades off of a 500W power supply, can I just tap into the molex cables and be done with it, or do I specifically have to use the PCI-e cables?

[takes]

good

[suchmoon]

Power supply question. When I tap into a 12v (yellow), in a typical power supply, does it matter if I spread it around to say PCI, SATA, CPU, etc etc cables? If I wanted to run 2 Gridseed Blades off of a 500W power supply, can I just tap into the molex cables and be done with it, or do I specifically have to use the PCI-e cables?

Assuming all wires are 18 AWG - which they typically are - you should not hang more than 6A on one yellow wire. Which is roughly one half of one blade. PCI-E cables have three 12V wires each, and your 500W supply probably has two of these, so run one blade on each PCI-E cable and you'll be fine.

[favelle75]

Power supply question. When I tap into a 12v (yellow), in a typical power supply, does it matter if I spread it around to say PCI, SATA, CPU, etc etc cables? If I wanted to run 2 Gridseed Blades off of a 500W power supply, can I just tap into the molex cables and be done with it, or do I specifically have to use the PCI-e cables?

Assuming all wires are 18 AWG - which they typically are - you should not hang more than 6A on one yellow wire. Which is roughly one half of one blade. PCI-E cables have three 12V wires each, and your 500W supply probably has two of these, so run one blade on each PCI-E cable and you'll be fine.

Thanks suchmoon, that helps.  One more question, if a PS has multiple rails, and most over 500W do, how do you know which 12V yellows are on which rail so you don't overload it?

[suchmoon]

Power supply question. When I tap into a 12v (yellow), in a typical power supply, does it matter if I spread it around to say PCI, SATA, CPU, etc etc cables? If I wanted to run 2 Gridseed Blades off of a 500W power supply, can I just tap into the molex cables and be done with it, or do I specifically have to use the PCI-e cables?

Assuming all wires are 18 AWG - which they typically are - you should not hang more than 6A on one yellow wire. Which is roughly one half of one blade. PCI-E cables have three 12V wires each, and your 500W supply probably has two of these, so run one blade on each PCI-E cable and you'll be fine.

Thanks suchmoon, that helps.  One more question, if a PS has multiple rails, and most over 500W do, how do you know which 12V yellows are on which rail so you don't overload it?

I wouldn't say most have multiple rails, but the ones that I've seen had it laid out on the label or in the manual. Normally on a multirail PSU you would have each pair of PCI-E connectors on a separate rail, so if you put 1-1.5 blades on each connector you would distribute the load just fine. You could probably figure it out with a multimeter too, I just never needed to.

[gtraah]

Hi guys,

how do you do you failover system in cpuminer? i have done some searching and found some people wrote scripts like this although this is not with sandors fork, I just do not know HOW the HELL to use a scrypt like this. Is there a Step by step guide for noobs, I am so used to using Cgminer as you can put everything on 1 single batch file command , DONE... Cpuminer is more difficult but more stable running the grids which is why I need to know!

Code:

@echo off

:Global
:: Set options - Change Retries, seconds and pool/usernames to those you desire. Make sure to include port numbers

SET retries=1
SET seconds=1

::Change TTL to how long you want to be at the secondary/tertiary pool before trying the primary. Time in milliseconds. 600000 = 1 hour, 60000 = 1 minute

SET TTL=60000 

:If you would like to a specific amount of threads, remove the ":" from the next line and specify. Add "--threads=%threads%" to the end of each minerd line. 

:SET threads=X

:Primary Pool

SET userpass2=
SET pool2=http://ltc.xurious.com:9332

:Secondary Pool

SET userpass1=
SET pool1=http://litecoinpool.org:9332/


:Tertiary Pool

SET userpass3=
SET pool3=

::Actualy mining part
:MINE

START /B /wait minerd.exe --retries=%RETRIES% --retry-pause=%SECONDS% --userpass=%USERPASS1% --url=%pool1%

START /B minerd.exe --retries=%RETRIES% --retry-pause=%SECONDS% --userpass=%USERPASS2% --url=%pool2%

tasklist /FI "IMAGENAME eq minerd.exe" 2>NUL | find /I /N "minerd.exe">NUL
if "%ERRORLEVEL%"=="0" PING 1.1.1.1 -n 1 -w %TTL% >NUL

TASKKILL /F /IM "minerd.exe"

START /B /wait minerd.exe --retries=%RETRIES% --retry-pause=%SECONDS% --userpass=%USERPASS1% --url=%pool1%

START /B minerd.exe --retries=%RETRIES% --retry-pause=%SECONDS% --userpass=%USERPASS3% --url=%pool3%

tasklist /FI "IMAGENAME eq minerd.exe" 2>NUL | find /I /N "minerd.exe">NUL
if "%ERRORLEVEL%"=="0" PING 1.1.1.1 -n 1 -w %TTL% >NUL

TASKKILL /F /IM "minerd.exe"

GOTO MINE

:END

But how the hell do you implement a script ?

At the moment I have 1 Batch file to run CPUminer, people that have created the script are basically creating another batch file, how do these 2 batch files run at the same time I dont get how that works.

And I am looking into the script am I supposed to replace anyhting , obviously the pool 0, pool 1 etc but what the hell is:

tasklist /FI "IMAGENAME eq minerd.exe" 2>NUL | find /I /N "minerd.exe">NUL
if "%ERRORLEVEL%"=="0" PING 1.1.1.1 -n 1 -w %TTL% >NUL

why is it pinging 1.1.1.1, man this is so confusing Arghhhh!!

[gtraah]

I think I found my answer thanks to wolfey in PM Mode

[favelle75]

I think I found my answer thanks to wolfey in PM Mode

Sweet, thanks for sharing so that we can all learn as well.

[happydaze]

Hi guys,

how do you do you failover system in cpuminer?

Sandors cpuminer has failover if you use a .json config file. 

[wolfey2014]

Hi guys,

how do you do you failover system in cpuminer?

Sandors cpuminer has failover if you use a .json config file. 

No, failover in cpuminer works like this....

minerdoc --freq=1180 --gc3355=\\.\com2,\\.\com4 --url=stratum+tcp://mineit.com:3000 --userpass=xxxx.xxxx:xxxx --url=stratum+tcp://stratum.doofusspool.com:3004 --userpass=xxxx.xxxx:xxxx

It runs in a constant loop by default...that's how it works, I believe.
When the blue site fails, it starts up the green site and keeps watching for the blue site to come back online, then switches back to it....
I think you can have as many fail-over sites in the line as you want.
Easy, eh?

Wolfey

[favelle75]

Power supply question. When I tap into a 12v (yellow), in a typical power supply, does it matter if I spread it around to say PCI, SATA, CPU, etc etc cables? If I wanted to run 2 Gridseed Blades off of a 500W power supply, can I just tap into the molex cables and be done with it, or do I specifically have to use the PCI-e cables?

Assuming all wires are 18 AWG - which they typically are - you should not hang more than 6A on one yellow wire. Which is roughly one half of one blade. PCI-E cables have three 12V wires each, and your 500W supply probably has two of these, so run one blade on each PCI-E cable and you'll be fine.

Thanks suchmoon, that helps.  One more question, if a PS has multiple rails, and most over 500W do, how do you know which 12V yellows are on which rail so you don't overload it?

I wouldn't say most have multiple rails, but the ones that I've seen had it laid out on the label or in the manual. Normally on a multirail PSU you would have each pair of PCI-E connectors on a separate rail, so if you put 1-1.5 blades on each connector you would distribute the load just fine. You could probably figure it out with a multimeter too, I just never needed to.

Thanks man, much appreciated.

[zugvogel21]

Hello,

i have a problem with my blades.
The miner i am using is cgminer 3.7.2 gridseed. I have 7 blades on my laptop.
Installed Windows usb drivers. When i run cgminer it only detects one gsd. not more. i have first to start cg and then plug in the blades after running it. Then it detects all blades.
Also cg shuts down one time a day. This happens most times in the night. Everytime a differnt time.
Can please somebody help me ?

[zugvogel21]

Also tried differnt PC. Same Problem.

[sandor111]

Hello,

i have a problem with my blades.
The miner i am using is cgminer 3.7.2 gridseed. I have 7 blades on my laptop.
Installed Windows usb drivers. When i run cgminer it only detects one gsd. not more. i have first to start cg and then plug in the blades after running it. Then it detects all blades.
Also cg shuts down one time a day. This happens most times in the night. Everytime a differnt time.
Can please somebody help me ?

It's better to use cpuminer-gc3355, download: https://www.dropbox.com/s/ttqa9p851siz8oi/minerd-gc3355.zip
Documentation is here: https://github.com/siklon/cpuminer-gc3355