[GUIDE] BitFury Miner Support/Tuning

[-Redacted-]

Code:

Code:

A = Autotuning (if off, chip will not be modified by autotuning) [A = on / a = off]
I = External clock (must have this on to make the chip work)     [I = on / i = off]
F = Fast clock                                                   [F = on / f = off]
D = Clock division by 2 (should be on)                           [D = on / d = off]
S = Slowclock (should be on)                                     [S = on / s = off]
O = Send clock to output (OutClk pin)                            [O = on / o = off]

anyone has more information on what happens when turnin on/off those? I found setting i to 1 chips lets other chips across the whole unit to stop working. Anything else?

Turn "I" off by changing it to lower case "i" and not the number one "1".  But did you read what it says?  if you turn a chip off, yes, all the chips after it will also stop working.  Solution: Don't do that.

[dani]

oops, of course I meant I, not 1. It reads "External clock (must have this on to make the chip work)", so I didn't know. Thanks

[goxed]

Guys heads up on pencil mod for overvolting and thus aiding overclocking.
Use pencil mod on R2F, make it around 1.1 - 1.2K, voltage goes from 0.66V to 0.81V. The default value is ~1.3K. It may blow the 30AFuse if you go too high; so make sure you do it only if you have a soldering station handy

After Mod (I have only 3 H cards )

Code:

Bank 1
1: 30.781GH/s
2: 33.315GH/s
3: 30.022GH/s
4: 0GH/s

[darkfriend77]

Can you explain how to do this?

:-)

Maybee some pictures ...

[goxed]

Can you explain how to do this?

:-)

Maybee some pictures ...

a) Get an Ohmmeter or DMM

b) Get an HB or softer Pencil

c) Locate R02F resistor. Donot mod R01F.

d) Make sure R02F measures 1.3KOhm

e) Rub pencil on the surface of R02F 3 - 4 times

f) Measure resistance, if it's 1.2K plug the board in

g) Measure output voltage, and repeat steps e,f if necessary for fine-tuning

h) Hash like a boss

[tom99]

Can you explain how to do this?

:-)

Maybee some pictures ...

a) Get an Ohmmeter or DMM

b) Get an HB or softer Pencil

c) Locate R02F resistor. Donot mod R01F.

d) Make sure R02F measures 1.3KOhm

e) Rub pencil on the surface of R02F 3 - 4 times

f) Measure resistance, if it's 1.2K plug the board in

g) Measure output voltage, and repeat steps e,f if necessary for fine-tuning

h) Hash like a boss

  Maybe you need to post picture of step e) if you could and thank you.

[mr_rulezzz]

Code:

Bank 1
1: 30.781GH/s
2: 33.315GH/s
3: 30.022GH/s
4: 0GH/s

% of HW errors? or ... show your stat.log please

[punin]

Nice mod Please remember to use fans when overvolting & overclocking your unit. If your unit goes "dead" ie. plugged in H-card shows no voltage on top of inductor, this may be due to overcurrent protection of the regulator kicking in. Although I'm generally supportive of hacking, please remember that you're doing so on your own risk. We cannot guarantee long-time functionality of the boards if you mod them.

[darkfriend77]

we need a pictured guide for dummies ... so we can break our boards trying ...

[puffmais]

has someone tried to use a wlan usb stick? how can i do this?

[badalien]

is everyone here from Germany - Hamburg that can make the resistor mod for the H Card, i have two of them ?

[goxed]

we need a pictured guide for dummies ... so we can break our boards trying ...

courtesy c-scape

[-Redacted-]

Dear Lord that thing is really small on a version-1 M-board (not the mod being discussed - the pencil mod is done on each H-board).  

My eyes aren't what they used to be, but are R01F and R02F REALLY size 0603 on the m-board??  If they are, how is it even possible to manually place 0402 parts

[darkfriend77]

i got those pictures sent from a user ...

to guide through the process of the pencil mod ....

***be aware that you loose warranty of the h-board in doing this ... and you can brick your board!!!***

details:

- temp +10-15°
- 1.6 times higher electricity needed
- up to 50% increased hashrate

Step 1: unplug your h-board ... and locate the R02F Resistor



Step 2: use ur multimeter on the resistor and verify that it shows 1.3k Ohm



Step 3: use a HB (medium grade) pencil (http://en.wikipedia.org/wiki/Pencil) and rub 2-3 times



Step 4: use ur multimeter on the resistor and check how much it was lowered in resistance ...as long as your higher then 1.2k restart step 3 & step 4 ...
goal resistance is 1.1k - 1.2k, if you get under 1.1k just swip a little away with your finger ...

Step 5: plug in again and start




have fun ...

[Isokivi]

Any word on the error rate, I managed to get to 30-33Ghs for short periods and huge error rates, with 0 (zero) actual gains.

[goxed]

Any word on the error rate, I managed to get to 30-33Ghs for short periods and huge error rates, with 0 (zero) actual gains.

How did you look for the error rates? can it be calculated from .stat.log?

[Isokivi]

How did you look for the error rates? can it be calculated from .stat.log?

open bitfury.ip/stat.json for constantly updating counts per board.
or ssh in and

Code:

less run/shm/.stat.log

This is a 5 min log that is rewritten over and over again

[-Redacted-]

or leave an ssh window open and  run this:

while (true) do tail -3 /run/shm/.stat.log; sleep 305; done


( not run/smh )

[Isokivi]

or leave an ssh window open and  run this:

while (true) do tail -3 /run/shm/.stat.log; sleep 305; done


( not run/smh )

corrected my post, thanks ...I keep making that same typo over and over again

[spiccioli]

or leave an ssh window open and  run this:

while (true) do tail -3 /run/shm/.stat.log; sleep 305; done


( not run/smh )

or

Code:

watch -n 305 tail -3 /run/shm/.stat.log

spiccioli