[GUIDE] BitFury Miner Support/Tuning

[AMD FTW]

Here is how i solved the mboard connection problem:


ill post some more with an actual mboard with these on, self made of course

Edit: daddyfatsax care to sell those unused bitfury boards?

If you had any pics of this setup, I'd be interested in seeing them.

[adib]

Here you go:
v1.1, v1.2 and v2.2 moddable


v1 chips, 12 chips/board(overclocked), 250ghs, 300W at the wall, 100 chips
same setup, v2 chips, 290ghs, 250W at the wall, 96 chips

[AMD FTW]

Here you go:
v1.1, v1.2 and v2.2 moddable


v1 chips, 12 chips/board(overclocked), 250ghs, 300W at the wall, 100 chips
same setup, v2 chips, 290ghs, 250W at the wall, 96 chips

Thanks for the pix, interesting setup. I just purchased a hot air rework station and figured this would be a great project to learn on and possibly salvage some boards. I'm pretty good with a soldering iron so this shouldn't be too bad. I'm looking now for an oscilloscope that looks decent and would be great for this project along with other projects I might tinker with in the future. My parts should arrive next week some time, so the salvaging of the boards begins next weekend.

Hot air station I got
http://www.amazon.com/gp/product/B00A2VQA24/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1

[adib]

first check if you have voltage,
if you do, you are good, the chances are the first chip is gone
if its not that, the pcb traces are gone, you have to verify which one
a meter should help also

Have fun

[AMD FTW]

I checked 5 cards tonight in over 20 dead cards in my defective bitfury card stack and I've found that all of them have no voltage going to the bitfury chips. I checked this by using a multimeter and saw 12 volts coming out of the fuse. Then I checked the inductor and used the bottom of the voltage regulator pad as the ground and saw no voltage. So what are the odds that the voltage regulators are all toast? I have no experience with the durability of these voltage regulators and if they were pushed to far maybe they finally just kicked the bucket. I bought an intersil 0-6v 30 amp board below to verify if the chips do in fact work. I should have it in a few days to verify if the bitfury chips are indeed good. If the h-boards traces are gone, and replacement pcb's aren't available, maybe I'll try to design a board with all these chips in series so I don't need to use a vreg which should make it more reliable. If I run them in series of 16 bitfury chips with 12 volts, then they'd only get .75 volts or so which will keep them running efficient and cool. I checked the voltage on a few good H-cards and they are taking .865 volts, and they've been this way since day 1 as I've never adjusted the potentiometer. Anyone know the rest of the h-board pinouts on the pictures I posted.

Power Source
http://www.mouser.com/Search/ProductDetail.aspx?R=ISL8225MEVAL3Zvirtualkey57760000virtualkey968-ISL8225MEVAL3Z

[adib]

I think you were better off, buying the power TPS buck.
Also check the inductor to see if it has voltage before and after it.

Good luck

[AMD FTW]

I think you were better off, buying the power TPS buck.
Also check the inductor to see if it has voltage before and after it.

Good luck

I'll hopefully will have the Intersil 30 amp development board tomorrow. I had a chance to use my new hot air station. I removed the old TI buck converter on the H-Board and replaced it with a new one. Unfortunately I didn't have any voltage before the inductor prior to removal of the old part and also after I installed the new one. I tried another new TI buck converter and had no luck here either. This was the first time I've ever used a hot air rework station, so I decided to just practice on one of my h-boards removing capacitors, resistors, buck converter, and inductor. I got the hang of using the hot air station, so I figured I'd try it on the solid aluminum capacitor. I removed the capacitor and then I started replacing the components that I removed. I reinstalled everything with no issues until I got to the aluminum capacitor. I guess I heated it up to long and it blew up. Lucky it didn't hit me in the eye as at this moment I had placed my saftey glasses on the work bench and forgot to put them back on. I'll have some more time tomorrow to mess around with the boards. I'll post the TI stock h-board buck converter diagram here.

[avivmas]

the link for raspberry pi IMG file on dropbox are not work.

someone can upload it?

[jddebug]

the link for raspberry pi IMG file on dropbox are not work.

someone can upload it?

Do you recall what it is called?

rPi_V1.img   ?

[irritant]

the link for raspberry pi IMG file on dropbox are not work.

someone can upload it?

2013-Aug-29_BitfuryRasPi_v0.1

2013-Sep-27_BFSB_GM2

[dubbers_brain]

Im struggling im am not hashing a bean can anyone help please?
Followed the guide and have searched google and forums high and low, and im lost now

[dubbers_brain]

Im struggling im am not hashing a bean can anyone help please?
Followed the guide and have searched google and forums high and low, and im lost now

using chainminer image BFSB_GM2

[dubbers_brain]

got it working on bfgminer but only detects 32 chips, then the hashrate drops to nothing in the space of a few hours.. what am i doing wrong someone please help please!