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

[MrTeal]

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.

It could. I haven't tried it myself, but it would seem to be a good reuse of the air.

[nanook7]

A quick thanks to Mr. Teal and Chipgeek.  My 8 Chili are now on duty hashing away.  They all are averaging above 34 GH and are only pulling a total of 1186W at the wall off one massive power supply.

http://i819.photobucket.com/albums/zz114/oneilljf/photo_zps3aa672ba.jpg

[Swimmer63]

How are those Antec coolers working?

[nanook7]

How are those Antec coolers working?

I'm actually only using one fan per cooler.  The other cooler is just being used as a backplate and passive cooling.  Overall the Antec coolers were a quick install and work well.  As a side note I'm getting better temp control with the supplied grease vs. Fuji Poly thermal mats I bought.   

[Swimmer63]

How are those Antec coolers working?

I'm actually only using one fan per cooler.  The other cooler is just being used as a backplate and passive cooling.  Overall the Antec coolers were a quick install and work well.  As a side note I'm getting better temp control with the supplied grease vs. Fuji Poly thermal mats I bought.   

Hmmm.  So you are just using the grease between the chips and the plate?

[nanook7]

How are those Antec coolers working?

I'm actually only using one fan per cooler.  The other cooler is just being used as a backplate and passive cooling.  Overall the Antec coolers were a quick install and work well.  As a side note I'm getting better temp control with the supplied grease vs. Fuji Poly thermal mats I bought.   

Hmmm.  So you are just using the grease between the chips and the plate?

Grease only chip side.  Having two Antecs back to back allows me to screw them together tightly without board flex.  On the back I am using some Kapton tape as a insulator (thanks Mr. Teal for all the suggestions). 
I will turn on the backside fans later in the week when I get some 4pin to 3 pin adapters.  I couldn't fit two 4 pin fans on the Chili (only has two 3 pin plugs really close together)

[Keefe]

Here are pictures of my adapter kit for mounting the Hyper 212 EVO to a Chili board. Since I don't have any boards in hand yet, I made a simple cardboard model.

(click to enlarge)


Notes:
* I recommend at least 3 full turns of the screws into the standoffs from each end for stability. If you assemble them as shown, the screws should meet right about in the middle of the standoff, about 4-5 threads (full turns) from each end.
* The number of washers inserted in the center of the X bracket affects the pressure on the chips/pads, though I'm not sure by how much. By my calculations, 2 or 3 washers should achieve the same pressure as the cooler would apply to a standard cpu with the stock hardware. The kit includes 4 washers for that location, so you can choose how many to use.
* The picture shows 4 pads, each 10x20mm, which you can cut in half to cover 8 chips. You can probably get away with not cutting them and covering 2 chips each if you position them very precisely. Make sure you remove the plastic from both sides of the pads.
* The 12mm long M+F standoffs I'm using for the board's feet, and their nuts, are the ones that come with the cooler and normally attach the backplate to the board.

I already sold all 17 parts kits I had for sale, but I still have thermal pads for 6 more boards, which I'll sell for $2 per board plus shipping.

Is anyone interested in these kits for batch 2? Let me know how many. I figure I can get more parts in as soon as Monday if there's enough interest (at least 25 kits to make it worthwhile).

I'm not going to order more parts for making and selling these kits, so I'll just share the parts list:
For each Chili:
(4 pcs) http://www.digikey.com/product-detail/en/9911-187/492-1088-ND/586408
(4 pcs) http://www.digikey.com/product-detail/en/3349/3349K-ND/61924
(8 pcs) http://www.digikey.com/product-detail/en/SAEFZ%20004/H777-ND/274988
(4 pcs) http://www.digikey.com/product-detail/en/MPMS%20003%200012%20PH/H744-ND/274955
(4 pcs) http://www.digikey.com/product-detail/en/24432/24432K-ND/1532164
(4 pcs 10x20mm or 1 pc 35x35mm) http://www.frozencpu.com/products/16882/thr-167/Fujipoly_Extreme_System_Builder_Thermal_Pad_-_60_x_50_x_05_-_Thermal_Conductivity_110_WmK.html

Removed from the list are the large nylon washers for the board feet, since I discovered that the board's holes are a bit too small for the standoffs that come with the cooler. I just have my Chili's resting on the 4 screw heads that attach the backplate.

[Spieder]

I've got two units which won't go through the startup sequence; the 4 right most lights stay solid. Does anyone know what that means when those lights stay on? My other 15 units work perfectly.

[shade88]

I've got two units which won't go through the startup sequence; the 4 right most lights stay solid. Does anyone know what that means when those lights stay on? My other 15 units work perfectly.

Don't plug in the usb cable, if the 7th LED keep blinking that mean the board are not cool enough.
When that happen just hold the board near an AC to cool it for about a minute then plug it in and let it complete the boot sequence and all LED are off before starting the miner software.

[MrTeal]

I've got two units which won't go through the startup sequence; the 4 right most lights stay solid. Does anyone know what that means when those lights stay on? My other 15 units work perfectly.

Send me an email, I'll help you get those set up and running.

[Spieder]

I've got two units which won't go through the startup sequence; the 4 right most lights stay solid. Does anyone know what that means when those lights stay on? My other 15 units work perfectly.

Don't plug in the usb cable, if the 7th LED keep blinking that mean the board are not cool enough.
When that happen just hold the board near an AC to cool it for about a minute then plug it in and let it complete the boot sequence and all LED are off before starting the miner software.

Tried that but no luck. Thanks for the suggestion though.

[agibby5]

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

[Keefe]

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

How about this one?:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=251377553700
I haven't tried it.

[jelin1984]

How about this one?:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=251377553700
I haven't tried it.



here to install these one?

[Keefe]

How about this one?:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=251377553700
I haven't tried it.



here to install these one?

Peel and stick.

[jelin1984]

here at moffet?

[BrimStone]

Well, I ran into a problem with two of my Chili's.  I installed ARCTIC Accelero Twin Turbo II units on all the boards but two of them dropped down to 22Gh/s at 67C.

One of the two was in service for weeks before the problem and the other ran fine for two days before it happened.

I used "Fujipoly Ultra Extreme System Builder Thermal Pad - Full Sheet - 200 x 150 x 0.5 - Thermal Conductivity 17.0 W/mK" and the Arctic back plate to prevent flexing.

Should I try using the Arctic paste on these two instead?

-BrimStone
   

[Bargraphics]

Well, I ran into a problem with two of my Chili's.  I installed ARCTIC Accelero Twin Turbo II units on all the boards but two of them dropped down to 22Gh/s at 67C.

One of the two was in service for weeks before the problem and the other ran fine for two days before it happened.

I used "Fujipoly Ultra Extreme System Builder Thermal Pad - Full Sheet - 200 x 150 x 0.5 - Thermal Conductivity 17.0 W/mK" and the Arctic back plate to prevent flexing.

Should I try using the Arctic paste on these two instead?

-BrimStone
   

Just a heads up, when I used the EVOs on mine, a couple of them would go to 18-22GH. All I did was unscrew and redo the heatsink and if the Fujipoly pad was too damaged, replaced that. It always fixed the issue, it seems that they can be really sensitive at some points.

[Spieder]

I've got two units which won't go through the startup sequence; the 4 right most lights stay solid. Does anyone know what that means when those lights stay on? My other 15 units work perfectly.

Send me an email, I'll help you get those set up and running.

I sent you an email with a better description and pic. Hopefully you can figure out what's causing this. Thanks.

[xselam1988]

what temp is needed for the board to cool to startup?
I have em in my garage the board in about 40'c and the 7th led never went off.
(my garage is a little bit warm have 15KW miners in it)