Topic: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 24. (Read 137904 times)

what drivers i must install for flash the chilli

because with winusb drivers
i can not flash my chilli
i must put other drivers
any link of drievrs

I fixed it, don't know with which, but I reflashed to the firmware for units with near perfect engines
AND
I reseated the heatsink to the chips, one of these fixed the problem. its a Carefree mining Christmas!

Thanks for your speedy replies!! Happy Holidays to you!!

  ::)where is the step by steps details

for updated the firmware at chilli board?

I reflashed it to 14e. It does the start-up LEDs, BFGminer recognizes it, it then reports it's doing TH/s, 100% error rate, and stops. In a windows VM, the chiliflash app reports it has four working chips: two with 11 engines and two with one engine. The total theoretical speed varies from 2 - 4GH. It's something hardware related, I believe.

Shame I only got about 18 hours of hashing with it before it fell over, but those are the breaks. I wish I could tell which ASICs were good.

Now BFL has sharply reduced prices on their 65nm line, I'm open to buying another chili or two if the price is reasonable. I'm not put off by one fussy board.

I had one like this. Well, the high GH and 100% errors part. But it would usually go for days between random occurrences. Cycling power always got it working again, usually for another few days. I sold it to plasticuser recently, so keep an eye out for any solutions he finds.

Honestly I've only ever seen this happen for two reasons.

The USB port it is plugged into isn't registered correctly/is going bad or the firmware needed to be reflashed on the chili.

I believe you stated both of these you have verified are not the cause?

Maybe try to hook it alone on a different computer,

try to install a different firmware version,
https://www.dropbox.com/s/zoewijezzhfl3bs/Chili14e.hex

The above firmware might not be the newest but it is the one I'm using on all my chilis and they are running great (Even the ones that did give the 100% hardware errors and one that was dead until I reflashed it with this firmware)

Hope this helps and you get can a stable chili for xmas!

Edit: Maybe try changing the PSU in case it isn't giving it enough juice for some reason? Long shot but I know I had a PSU that was having issues and causes my Chilis to behave a little weird.

Now I have one mining and the other mines for a few minutes then switches to a gazillion gigahash and 100% HW errors

-S all works for me with 3.8.1

However I have a question: BFG keeps reporting the local hash rate for the Chili+2 jallies as 62/64/60. Why is my submitted shares so much lower; looks like I am losing 5gh.

Chili is the bigger one 38/38/35gh. .7% rejected, 5.5% error rate.

Anything special I need to set in BFG (Windows 32 bit)

That was it!

Now they are working,

Block Erupters stopped working however with 3.8.1

Have you tried using the latest BFGMiner? 3.2.8 is a little outdated. Not sure if this will fix your issue though.

I flashed it with the firmware listed in Post #2

Also disconnected everything else.

No dice

Unplug it from the USB and plug it into a different slot (Make sure BFGMiner is fully closed).

Then unplug the power/replug the power, wait for all the lights to stop blinking. Pull up BFGMiner and see if you get the same issue.

If you so then it might just need a Firmware flash.

Just got two new boards from Mr Teal

Win 7 with 3 BFL devices that work just fine,

Add the Chili and its recognized by BFGminer but 100% rejects while the BFL devices work just fine.

Any secret I am missing?

I cant have two bad boards!

get a small fan (and/or some heatsinks) on the mosfets.
The chip temp should rise to 70c and the hash rate will increase.

If this does not work then check the cooler contact on the chips.

Hi, my temp are low but I get only 25ghs any idea why?
Do you guys have suggestion to improve the performance?
I use Cooler Master 212 X
Thanks

Please do'nt pin up the rest of the BFL staff till after they deliver my MONARCH

This is a *very* unusual board. Cooling is God, but what produces the highest hashes is not always what you think it will be.

For example, it's currently at 65-70c and hashing at 36gh+. Right now the fan on the radiator is at full speed, and the pump is running slower than normal. If I stop the fan the temp on the board drops down to 50c, but the hashing rate falls to 31gh as the water temp in the loop goes up. Spin up the fan again and speeds climb along with board temp.

I think one of the things Mr. Teal is doing here is watching temps *on the chips themselves* and adjusting his hashes. My error rate is a rock solid 5.1%, that might also be in the code. But it's possible that chip temps could go up, hashing would slow, which would lower board temps. The BFL units only have board temp sensors so they run more conservatively.

However man does this dopey water cooler work. For $40 or whatever I got it for on Ebay it's doing one heck of a job. The secret though is to reduce the pump speed a bit. Try it and see if that boosts you up in speed. Also what's the fastest Chili out there (I still intend on putting an air cooled heat sink on this thing's bottom. Might get more performance!)

But all this also means I should really push my turbo jallies a *lot* harder. Time to start overriding the clock speeds and gunning them up a bit. However you can't do that on a stock BFG 25/30 or 50/60 as the 1 volt power supplies will not handle the load. Mr. Teal built a... bigger... solution there.

BTW, you can actually flash the chili from within a VirtualBox image using XP.  You just have to make sure you allow the USB ID to go through, and then it works just fine.  So: create virtualbox, install xp, add driver for bfgminer for chili, flash the chili, remove virtualbox, and you're not inflicted with windows for very long.  We are mostly windows-free, too - I just keep an image around for just these types of things.

The secret? Voodoo.

NOt bad. Board came today, so I assembled it with the $49 water cooling thing, some washers to hold the heat sink on those stupid sockets, and off we go.

Speed at first was good, but was rejecting 25% of my work. Restarted BFGMiner, cut the speed on the pump somewhat with an inline resistor, and now I am getting 65c, 38/38/36 (why is acknowledged shares always so much lower???) with a HW error rate of 5.7% and a R rate at the moment of 0. I might try slowing down the fan on the radiator a bit as well, loud.

Note: Running the water pump slower cuts down on noise a lot and increases thermal effectiveness. I'm guessing because the dwell time of the water on the plate allows a higher joule count when the flow rate is below turbulence levels. But then again I flunked fluid dynamics.

Overall not too bad. Wish I had bought a dozen, but this little guy should make back it's .7 investment. And it's cute too!

Very impressed Mr. Teal. If we ever meet at some meetup I'll buy you a beer and you can tell me how you got all 8 chips >4gh.

C