The Chili – 30+GH/s BFL based Bitcoin Miner Assembly

[ryanb]

what do i need to get it going on windows till i figure it out on raspi?

[jborkl]

Failed to send queue is related to poor contact (overheating). Redo your heatsink

[MrTeal]

what do i need to get it going on windows till i figure it out on raspi?

Plug in the USB cable, then plug in the PCIe power.
Windows will find the Bitforce SHA256 SC device, then install the drivers for it (a serial convertor and serial comm port, I believe). Once it does that, follow the instructions from the cgminer readme.

On windows, the direct USB support requires the installation of a WinUSB
driver (NOT the ftdi_sio driver), and attach it to the chosen USB device.
When configuring your device, plug it in and wait for windows to attempt to
install a driver on its own. It may think it has succeeded or failed but wait
for it to finish regardless. This is NOT the driver you want installed. At this
point you need to associate your device with the WinUSB driver. The easiest
way to do this is to use the zadig utility which you must right click on and
run as administrator. Then once you plug in your device you can choose the
"list all devices" from the "option" menu and you should be able to see the
device as something like: "BitFORCE SHA256 SC". Choose the install or replace
driver option and select WinUSB. You can either google for zadig or download
it from the cgminer directory in the DOWNLOADS link above.

When you first switch a device over to WinUSB with zadig and it shows that
correctly on the left of the zadig window, but it still gives permission
errors, you may need to unplug the USB miner and then plug it back in. Some
users may need to reboot at this point.

At that point you should just be able to start cgminer and go.

[ryanb]

i got it working on bfgminer on windows but it is only getting 22gh

[MrTeal]

i got it working on bfgminer on windows but it is only getting 22gh

Yeah, then it's likely poor contact with the heatsink. What are you using?

[ryanb]

evo 212

[ChipGeek]

just received my chilli i connected it to my raspberrypi and i am gettting failed to send queue message and retry in 1 second

it is detected and temp is 30 degrees

any ideas?

Thanks

If you are using cgminer, you need version 3.6.0 or higher.  I'm having good luck with 3.7.2 and I did have some problem with 3.8.1. 

[ryanb]

it is working now and all good

but i am getting 29.39 ghash is there a way to get more out of it?

temp is 55

[agibby5]

Where's the best place to get inexpensive stick on heat sinks for the components other than the ASIC chips?

[jelin1984]

Mine work ok with cgminer 3.8.2
Hash 33gh
And 37gh each of my boards

[amer]

Can the prices for end users be lowered enough to make it more enticing?  I know there are some required costs like manufacturing, etc...

Depends on volume, but probably not. A lot of it will depend on what kind of price you can get for the ASICs themselves, as at list price they're more than everything else combined. For our part of it, an order of 100 boards is enough that it takes you out of the very expense realm you pay for runs of 10-20 or so for prototypes and the ludicrously expensive cost of doing a few, but it's not nearly enough to get down to even the costs we saw in our first batch (which was 3x larger than our second batch).

How do we convey our interest in a round 3?

[Mudbankkeith]

it is working now and all good

but i am getting 29.39 ghash is there a way to get more out of it?

temp is 55

If your heatsink to chip contact is good then try this.  If the heatsink contact is bad then the chips will stay slow.

Get a fan blowing onto the mosfets,  The core temp should rise to 70c and the hash rate will rise. 

 32Gh without mosfet cooling to 35Gh with mosfet cooling is the minimum I would be looking for.


If the mosfets on the power control get too hot, it will throttle the board.

[ryanb]

it is working now and all good

but i am getting 29.39 ghash is there a way to get more out of it?

temp is 55

If your heatsink to chip contact is good then try this.  If the heatsink contact is bad then the chips will stay slow.

Get a fan blowing onto the mosfets,  The core temp should rise to 70c and the hash rate will rise. 

 32Gh without mosfet cooling to 35Gh with mosfet cooling is the minimum I would be looking for.


If the mosfets on the power control get too hot, it will throttle the board.

i put a fan now it is hashing at 35gh does that mean my heatsink contact is bad?

[Mudbankkeith]

it is working now and all good

but i am getting 29.39 ghash is there a way to get more out of it?

temp is 55

If your heatsink to chip contact is good then try this.  If the heatsink contact is bad then the chips will stay slow.

Get a fan blowing onto the mosfets,  The core temp should rise to 70c and the hash rate will rise. 

 32Gh without mosfet cooling to 35Gh with mosfet cooling is the minimum I would be looking for.


If the mosfets on the power control get too hot, it will throttle the board.

i put a fan now it is hashing at 35gh does that mean my heatsink contact is bad?

 35Gh is ok, it means your power side was running too hot.

What is the temperature reported from your miner?  If it is around 70c then its reasonable.

[ryanb]

it is working now and all good

but i am getting 29.39 ghash is there a way to get more out of it?

temp is 55

If your heatsink to chip contact is good then try this.  If the heatsink contact is bad then the chips will stay slow.

Get a fan blowing onto the mosfets,  The core temp should rise to 70c and the hash rate will rise. 

 32Gh without mosfet cooling to 35Gh with mosfet cooling is the minimum I would be looking for.


If the mosfets on the power control get too hot, it will throttle the board.

before having the fan on it was 55 now after adding the fan to blow on the mosfet the temp went up to 68 but my hash increased

i put a fan now it is hashing at 35gh does that mean my heatsink contact is bad?

 35Gh is ok, it means your power side was running too hot.

What is the temperature reported from your miner?  If it is around 70c then its reasonable.

[Mudbankkeith]

it is working now and all good

but i am getting 29.39 ghash is there a way to get more out of it?

temp is 55

If your heatsink to chip contact is good then try this.  If the heatsink contact is bad then the chips will stay slow.

Get a fan blowing onto the mosfets,  The core temp should rise to 70c and the hash rate will rise. 

 32Gh without mosfet cooling to 35Gh with mosfet cooling is the minimum I would be looking for.


If the mosfets on the power control get too hot, it will throttle the board.

before having the fan on it was 55 now after adding the fan to blow on the mosfet the temp went up to 68 but my hash increased

i put a fan now it is hashing at 35gh does that mean my heatsink contact is bad?

 35Gh is ok, it means your power side was running too hot.

What is the temperature reported from your miner?  If it is around 70c then its reasonable.

A bit more cooling on the mosfets will probably raise the temp to 70c  and gain you another 1Gh, check on the error rate though. If the error rate goes up too much, then all you are doing is wasting power.

Are you using an evo 212 cooler?

Possibly the better cooler would be a GPU type, It will cool the chips and be wide enough to cool the power module as well.

[agibby5]

Which are the mosfets?

[MrTeal]

The little black squares between the grey inductors and the round can capacitors.

[Mudbankkeith]

The little black squares between the grey inductors and the round can capacitors.

Hi MrTeal
Would it help if the fan on the evo 212 was placed at the back of the cooler?
Then put some deflectors behind the fan to divert the exhaust air flow down onto the power module?
I'm not sure if there is enough room.

[xselam1988]

any idea why I installed the winusb driver and 21/21 of miners are mining last night but today morning I got 5 of them still working.erromsg:jobqueuestate(something like this cant recall)
after reboot I have only the GFX still working. all other devies are hashing at 0 H/S
cgminer 3.6.6. and winusb or (ftdi and bfg 3.6) or (cg 3.8x)
it cant be overheating I have them working last night and cant be 21 of them all have heat problem. I think its driver or software.