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Topic: [GUIDE] BitFury Miner Support/Tuning - page 30. (Read 148049 times)

legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
September 30, 2013, 06:15:58 AM
Is there any type of failover script for chainminer?  Not all of us here can run solo like the 200TH mine.  I find chainminer a bit too basic, there must be more.
cet
member
Activity: 100
Merit: 10
September 30, 2013, 03:29:38 AM
I found a very interesting observation on one of my starter kits.  One of my five h-cards shows it has a dead chip in slot a-1.  If I move it to slot b-1 or c-3 that h card now shows all chips working for that problematic h-card. 

I've seen something along those lines - slot A (3rd slot on 3rd bank)  on my v2 m-board generates lots of miso errors regardless of the card I put in it. I can tune the card and get some of the miso-errors to go away by shutting down chips, but the errors don't happen on the same card if I move it to a different slot or a different m-board

/cet
hero member
Activity: 924
Merit: 1000
September 30, 2013, 02:37:53 AM
I found a very interesting observation on one of my starter kits.  One of my five h-cards shows it has a dead chip in slot a-1.  If I move it to slot b-1 or c-3 that h card now shows all chips working for that problematic h-card. 
sr. member
Activity: 434
Merit: 265
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
September 29, 2013, 05:59:25 PM
Careful when measuring the core voltage. Don't make a short, or you'll get spitzensparken. There's a lot of amps available, very eager to take a shortcut.

i usually check voltage across the caps, seems pretty reliable, esp if you want to average the reading of a few caps (usually all the same of course)
sr. member
Activity: 251
Merit: 250
September 29, 2013, 01:14:57 PM
Careful when measuring the core voltage. Don't make a short, or you'll get spitzensparken. There's a lot of amps available, very eager to take a shortcut.
sr. member
Activity: 427
Merit: 251
- electronics design|embedded software|verilog -
September 29, 2013, 12:52:00 PM
I have changed R01F to 2,26k ohm and gained about 4-5 GH/s only. Now I'm at about 51-52, before something around 47 GH/s. best.cnf is the same as before (between 54 and 56 depending on error rate). I think something went wrong, but what?

What voltage do you get?
Where can I measure it? (Multimeter available)

Put your probes over the terminals of C16.

intron
legendary
Activity: 1513
Merit: 1040
September 29, 2013, 12:24:00 PM
I have changed R01F to 2,26k ohm and gained about 4-5 GH/s only. Now I'm at about 51-52, before something around 47 GH/s. best.cnf is the same as before (between 54 and 56 depending on error rate). I think something went wrong, but what?

What voltage do you get?
Where can I measure it? (Multimeter available)
hero member
Activity: 681
Merit: 500
September 29, 2013, 11:54:24 AM
I have changed R01F to 2,26k ohm and gained about 4-5 GH/s only. Now I'm at about 51-52, before something around 47 GH/s. best.cnf is the same as before (between 54 and 56 depending on error rate). I think something went wrong, but what?

What voltage do you get?
legendary
Activity: 1513
Merit: 1040
September 29, 2013, 10:24:28 AM
I have changed R01F to 2,26k ohm and gained about 4-5 GH/s only. Now I'm at about 51-52, before something around 47 GH/s. best.cnf is the same as before (between 54 and 56 depending on error rate). I think something went wrong, but what?
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
September 28, 2013, 12:53:13 PM
i just moved to another pool that chose a difficulty for me (not sure what) that forced my hashrate (both at pool and via webgui) down from 38.5->27 GH/s. I changed it to 16 manually and im all good again.

what difficulty best suits a 35-40GH/s miner? 8,16, or 32?

edit: bumped to 32 difficulty, and it seems to be a little better for my miner. went from about 38.5GH to 39.5GH
sr. member
Activity: 434
Merit: 265
September 28, 2013, 11:11:37 AM
This is just the webpart .. it is independant to the chainminer version ...

infact you can just copy the new index.php ... over the old one ...
and make a symbolic link in www ... to the .stat.log file

that's it

1. backup ... ur old webpart ... just incase
Code:
pi@bitfury ~ $ sudo cp -a /var/www /usr/www.backup

2. symbolic link for the .stat.log
Code:
pi@bitfury ~ $ ln -s /run/shm/.stat.log /var/www/.stat.log

3. download ... /www/ part from link and copy index.php over to /www/

refresh browser ...

that's it...

legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
September 28, 2013, 10:54:17 AM

The new web part looks like this ...




is there an easy way to build/'gitpull' this, or does it involve imaging the SD or otherwise turning off the miner?

im hashing quite happily at the moment, and SSH is okay as long as i maintain >38 GH/s
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
September 28, 2013, 08:28:39 AM
Just had an SD get corrupted and did not have the luxury of getting a new one as currently the stores here are all closed.  Did a format on the SD card and re-imaged and now it seems to be working again so far.

Before I reboot again though I will definitely have a new card with image ready to go just in case.  Are there any suggestions on SD card manufacturer as I thought Kingston was a decent one?

I did pick up a PNY brand 8GB Class 4 SD Card for a little over $9 at my 24/7 Wal-Mart. They did have a two pack of PNY 4GB SD cards for $15. They were all rated for Class 4 speed just like the existing 4GB Kingston Card that came with my kit. Maybe it's good to keep a few spares on hand to minimize down time.

Good find.  That is going to be my plan when I grab a couple of them, ready made images at a moments notice.  Smiley
member
Activity: 87
Merit: 10
September 28, 2013, 08:05:08 AM
Just had an SD get corrupted and did not have the luxury of getting a new one as currently the stores here are all closed.  Did a format on the SD card and re-imaged and now it seems to be working again so far.

Before I reboot again though I will definitely have a new card with image ready to go just in case.  Are there any suggestions on SD card manufacturer as I thought Kingston was a decent one?

I did pick up a PNY brand 8GB Class 4 SD Card for a little over $9 at my 24/7 Wal-Mart. They did have a two pack of PNY 4GB SD cards for $15. They were all rated for Class 4 speed just like the existing 4GB Kingston Card that came with my kit. Maybe it's good to keep a few spares on hand to minimize down time.
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
September 28, 2013, 06:13:40 AM
Nice addition.  I wish us V1'ers could get that.
sr. member
Activity: 434
Merit: 265
September 28, 2013, 12:50:11 AM

The new web part looks like this ...


legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
September 27, 2013, 10:18:02 PM
Just had an SD get corrupted and did not have the luxury of getting a new one as currently the stores here are all closed.  Did a format on the SD card and re-imaged and now it seems to be working again so far.

Before I reboot again though I will definitely have a new card with image ready to go just in case.  Are there any suggestions on SD card manufacturer as I thought Kingston was a decent one?
member
Activity: 87
Merit: 10
September 27, 2013, 08:17:36 PM
Just reflashed on a new SD Card... Looks like all will be well once I set the IP correctly... The new basic USB keyboard I got is working now as well....

Now if I could remember where you permanently configure the NIC... I know to use ifconfig, but how do I get it to stick during a power cycle? What file do I need to modify?

Nevermind... Google is my friend. Wink

vi /etc/network/interfaces

member
Activity: 87
Merit: 10
September 27, 2013, 08:10:48 PM
Just reflashed on a new SD Card... Looks like all will be well once I set the IP correctly... The new basic USB keyboard I got is working now as well....

Now if I could remember where you permanently configure the NIC... I know to use ifconfig, but how do I get it to stick during a power cycle? What file do I need to modify?
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