[GUIDE] BitFury Miner Support/Tuning

[Beans]

Mine worked great for about a week. The 4th slot on my unit has stopped working entirely and getting more then half the slots working at the same time is extremely difficult and very short lived. It doesn't take long before it's running at 150gh or turned off completely. Seems like a M-Board issue to me, anyone have the same problem?

Update: Now only the first 3 slots of bank 3 seem to work correctly. Bank 4 works sometimes.

[klondike_bar]

something has happened.

the webUI is not accessible at 192.168.1.249
SSH times out trying to communicate

Ive tried with a second SD card to no avail, and the first 4 leds on the RPI are lit (ACT is not)

[goxed]

something has happened.

the webUI is not accessible at 192.168.1.249
SSH times out trying to communicate

Ive tried with a second SD card to no avail, and the first 4 leds on the RPI are lit (ACT is not)

Do you have a micro USB phone charger, spare hdmi cable? YOu could use that to test your rPI with a HDTV / Monitor

[klondike_bar]

I boot up and the last lines read:

/dev/mmcblk0p2 contains a file system with errors, check forced
/dev/mmcblk0p2: Resize inode not valid.

/dev/mmcblk0p2: UNEXPECTED INCONSISTENCY; run fsck MANUALLY.
fsck died with exit status 4
failed (code 4)
[warn] the root filesystem is currently mounted in read-only mode. a maintenance shell will be started
give root password to log in:

[tom99]

I boot up and the last lines read:

/dev/mmcblk0p2 contains a file system with errors, check forced
/dev/mmcblk0p2: Resize inode not valid.

/dev/mmcblk0p2: UNEXPECTED INCONSISTENCY; run fsck MANUALLY.
fsck died with exit status 4
failed (code 4)
[warn] the root filesystem is currently mounted in read-only mode. a maintenance shell will be started
give root password to log in:

  your FS messup that why you cant boot up.

[klondike_bar]

I boot up and the last lines read:

/dev/mmcblk0p2 contains a file system with errors, check forced
/dev/mmcblk0p2: Resize inode not valid.

/dev/mmcblk0p2: UNEXPECTED INCONSISTENCY; run fsck MANUALLY.
fsck died with exit status 4
failed (code 4)
[warn] the root filesystem is currently mounted in read-only mode. a maintenance shell will be started
give root password to log in:

  your FS messup that why you cant boot up.

f--k. figured as much. time to reload an image (i should back up my sd more often)

back up and running, minus a few miner tweaks and a chainminer update

[goxed]

I boot up and the last lines read:

/dev/mmcblk0p2 contains a file system with errors, check forced
/dev/mmcblk0p2: Resize inode not valid.

/dev/mmcblk0p2: UNEXPECTED INCONSISTENCY; run fsck MANUALLY.
fsck died with exit status 4
failed (code 4)
[warn] the root filesystem is currently mounted in read-only mode. a maintenance shell will be started
give root password to log in:

  your FS messup that why you cant boot up.

f--k. figured as much. time to reload an image (i should back up my sd more often)

back up and running, minus a few miner tweaks and a chainminer update

If you have an SD card reader / or a digital camera connected to a Linux box, you can try to run fsck on /dev/sd

• 2. Sometimes it works.

[tom99]

I boot up and the last lines read:

/dev/mmcblk0p2 contains a file system with errors, check forced
/dev/mmcblk0p2: Resize inode not valid.

/dev/mmcblk0p2: UNEXPECTED INCONSISTENCY; run fsck MANUALLY.
fsck died with exit status 4
failed (code 4)
[warn] the root filesystem is currently mounted in read-only mode. a maintenance shell will be started
give root password to log in:

  your FS messup that why you cant boot up.

f--k. figured as much. time to reload an image (i should back up my sd more often)

back up and running, minus a few miner tweaks and a chainminer update

  you can use usb for FS and I had use sd for boot + usb for FS.  you write image to usb and you make a change in /boot/cmdline.txt "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/sda2 rootfstype=ext4 elevator=deadline rootwait"

you need to make change                                                                "root=/dev/xxx"

sda2 for usb.

[goxed]

Just debugged a board with 4 dead chips!

a) replace chip 1 with chip2, no fish, frustration level 1
b) replace chip 1 with chip3, no fish, frustration level 10
c) replace chip 1 with chip4, no fish!, scratch head, solder external power supply, frustration level 1000+
d) finally replace chip 1 with chip5, and the chip worked! 4 dead chips in a row, starting from chip1.

[mo_mo]

how to set up bitfury to mine PPC, do I just update the pool settings on WebGUI? is there a guide for mining alt coins using bitfury
thank you

[tom99]

how to set up bitfury to mine PPC, do I just update the pool settings on WebGUI? is there a guide for mining alt coins using bitfury
thank you

  do same thing as btc.

[joris]

Well, my starter kit (high cost per hash, but no VAT: 18.0182 BTC to be exactly) made a little over 7.1 BTC by now and I'm just gradually overclocking over the months while getting comfortable with it.

Just 11 BTC to go in the coming 5 years or so, running around 62 GH at the moment. In this time span it's only possible with around 6% average growth in difficulty per 2160 blocks.

Now the applied voltage and the voltage regulator seem the main bottlenecks for approaching the theoretical 5 GH per chip. A small selection of chips do or don't hash on a irregular basis.

Is the voltage regulator alone replaceable (if RF02 is replaced like a board designer pointed out) and what could be the following bottleneck?

[mwk13]

I've heatsinked the new unmodded h-cards i have, directed fans (3x 120 mm) at them but they still get so hot they seem on the verge of burning up.
What else can i try?
For the time being, how should i set the trimpot on these cards to get ~25gh/s? (currently at 33+ gh/s)

Thank you.

[Swimmer63]

I've heatsinked the new unmodded h-cards i have, directed fans (3x 120 mm) at them but they still get so hot they seem on the verge of burning up.
What else can i try?
For the time being, how should i set the trimpot on these cards to get ~25gh/s? (currently at 33+ gh/s)

Thank you.

Did you heatsink the chip or the back.  I put it on the back.  The heatsinks are warm, but not hot.  I gained about 5% for the cards I did.  I think I'll do the rest, though I expected a better result.

[mwk13]

@swimmer63

I applied the heatsinks to the back of the cards. It's the cards themselves that are getting extremely hot.
Are there instructions anywhere that show how to adjust the voltage using the trimpots?

[Swimmer63]

@swimmer63

I applied the heatsinks to the back of the cards. It's the cards themselves that are getting extremely hot.
Are there instructions anywhere that show how to adjust the voltage using the trimpots?

I'm sure there are but I have the old version of boards with not trim pots.

[tom99]

anyone solo with bitfury admin and I was trying it but not working or maybe I was missing something ?

[klondike_bar]

@swimmer63

I applied the heatsinks to the back of the cards. It's the cards themselves that are getting extremely hot.
Are there instructions anywhere that show how to adjust the voltage using the trimpots?

I'm sure there are but I have the old version of boards with not trim pots.

just turn the trimpot with a screwdriver. 1/8th turn clockwise should increase voltage, counterclockwise reduces. do yourself a favor and use a 10$ multimeter as you go to check the resistance and, when powering up, the voltage

[Beans]

My 4th slot never comes on and after about a hour 2 or 3 other slots start turning off at on. Does it hurt anything to skip the 4th slot?

[Trongersoll]

have we figured out how to turn these off without trashing the memory card?