The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 64.

Keefe

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Quote from: ChipGeek on October 15, 2013, 09:41:58 PM

Quote from: Keefe on October 15, 2013, 09:24:55 PM

I plan on supplying up to 200W (on the DC side) to each unit, so I can overclock the units as much as possible, at least for the first month. As difficulty increases, I'll downclock.

Yeah, 200W per Chili is a good budget. At the moment the firmware goes for the maximum hashrate allowed for the cooling solution provided. Colder - faster hashrate. In the future, we'll release a new firmware that will further support underclocking to reduce power.

As a couple of data points - in production we're using a TIM that is not very good but is very durable and Chili slows itself down to keep from overheating. This gives around 20GH/s and under 150W. But with a good TIM, we routinely are getting over 30GH/s and more than 150W. Of course we cannot guarantee that speed for all boards, but it seems possible on the few we've tested. Keeping the chips cool will get more hashrate.

What are your thoughts on cooling capacity of the Hyper 212 Evo vs the Twin Turbo II, with the 11W/mK TIM? I personally prefer the parallel airflow direction of the former. But I want to be sure I'm not limiting my hashrate.

Spieder

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I see two power draws at the wall in the thread for 30ghz; 130 & 150 watts. Would you please clarify which one it is?

Any idea how much heat is actually produced by the 8 chips? From the BFL specs it would seem 8 would generate @ 100 watts at their normal operating voltage.

ChipGeek

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Quote from: Keefe on October 15, 2013, 09:24:55 PM

I plan on supplying up to 200W (on the DC side) to each unit, so I can overclock the units as much as possible, at least for the first month. As difficulty increases, I'll downclock.

Yeah, 200W per Chili is a good budget. At the moment the firmware goes for the maximum hashrate allowed for the cooling solution provided. Colder - faster hashrate. In the future, we'll release a new firmware that will further support underclocking to reduce power.

As a couple of data points - in production we're using a TIM that is not very good but is very durable and Chili slows itself down to keep from overheating. This gives around 20GH/s and under 150W. But with a good TIM, we routinely are getting over 30GH/s and more than 150W. Of course we cannot guarantee that speed for all boards, but it seems possible on the few we've tested. Keeping the chips cool will get more hashrate.

Keefe

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I plan on supplying up to 200W (on the DC side) to each unit, so I can overclock the units as much as possible, at least for the first month. As difficulty increases, I'll downclock.

oldbushie

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Well, I suppose I could always buy a second one, if the first one isn't enough. I have plenty of computer stores near me with PSUs.

ryanb

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i have a 600watt PSU that i have a blade connected to it and i plan to connect 1 chilli to the same psu it is bronze rated will it be enough?

Bargraphics

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Every man is guilty of all the good he did not do.

Quote from: oldbushie on October 15, 2013, 07:56:36 PM

Quote from: Keefe on October 15, 2013, 07:53:31 PM

Quote from: oldbushie on October 15, 2013, 07:46:34 PM

I got a 620W PSU for 4 boards according to MrTeal's recommendation, hopefully that's enough.

What model? That seems like it could limit the overclocking potential.

This one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171068

The computer's on its own power, I just needed something for the miners. I didn't think about the power needed for the overclocking aspect, and I was looking for something affordable.

I got this one

http://www.amazon.com/gp/product/B008RJZQSW/ref=oh_details_o04_s03_i00?ie=UTF8&psc=1

and am only using it for 3 miners per PSU.

oldbushie

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Quote from: Keefe on October 15, 2013, 07:53:31 PM

Quote from: oldbushie on October 15, 2013, 07:46:34 PM

I got a 620W PSU for 4 boards according to MrTeal's recommendation, hopefully that's enough.

What model? That seems like it could limit the overclocking potential.

This one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171068

The computer's on its own power, I just needed something for the miners. I didn't think about the power needed for the overclocking aspect, and I was looking for something affordable.

Keefe

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Quote from: oldbushie on October 15, 2013, 07:46:34 PM

I got a 620W PSU for 4 boards according to MrTeal's recommendation, hopefully that's enough.

What model? That seems like it could limit the overclocking potential.

oldbushie

member

Activity: 94

Merit: 10

I got a 620W PSU for 4 boards according to MrTeal's recommendation, hopefully that's enough.

Keefe

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Activity: 681

Merit: 500

Quote from: suprabitz on October 15, 2013, 06:15:50 PM

mr teal,

great job on the project.

can someone post a list of the minimum equipment to get this running (excluding the host hashing system).

For example people are saying

thermal pads
vga coolers
case fans or cpu coolers

I just don't want to get this and have 2-3 days of downtime waiting for accessories to arrive. I assume heatsink and fan aren't included and a gpu fan is required.

a write up of compatible coolers etc in one location would be very helpful

thanks

You'll need a mini USB cable, a cooler, and a thermal pad. I'll be putting the Hyper 212 EVO coolers on mine, and I'm selling adapter kits (including the 11W/mK thermal pads) to mount those coolers nicely on these boards and also support them horizontally (such as on a shelf).

You'll also need a power supply that can push ~180W on a 6-pin PCIe connector. Ideally your computer's power supply has a 6+2-pin PCIe plug so you can be sure it's designed for at least 150W.

suprabitz

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mr teal,

great job on the project.

can someone post a list of the minimum equipment to get this running (excluding the host hashing system).

For example people are saying

thermal pads
vga coolers
case fans or cpu coolers

I just don't want to get this and have 2-3 days of downtime waiting for accessories to arrive. I assume heatsink and fan aren't included and a gpu fan is required.

a write up of compatible coolers etc in one location would be very helpful

thanks

ChipGeek

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Quote from: ryanb on October 15, 2013, 05:28:39 PM

will this chilli miner run on raspberry pi?

Yes. The factory testing is running cgminer on the Raspberry Pi. We're running 6 Chilis at a time that way using a powered USB hub.

Keefe

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Merit: 500

Quote from: dtown on October 15, 2013, 03:08:43 PM

Quote from: MrTeal on October 15, 2013, 02:46:16 PM

so you can put it back on later when you move the HS to your new 50PH/s Intel ASIC machine in early 2015 when BTC hits USD$5000.

Haha

I think I'm just going to go with the more permanent route since that means I can just go to Home Depot.

So when these bad boys ship are you going to provide tracking or is that too difficult?

Thanks again! This is exciting.

Quote from: MrTeal on October 15, 2013, 12:18:06 AM

Quote from: Keefe on October 15, 2013, 12:12:51 AM

Will we get tracking numbers before delivery? I'd hate to be away from the house when it arrives.

Yes, I'll email/pm tracking numbers once we ship them.

ryanb

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will this chilli miner run on raspberry pi?

dtown

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Quote from: MrTeal on October 15, 2013, 02:46:16 PM

so you can put it back on later when you move the HS to your new 50PH/s Intel ASIC machine in early 2015 when BTC hits USD$5000.

Haha

I think I'm just going to go with the more permanent route since that means I can just go to Home Depot.

So when these bad boys ship are you going to provide tracking or is that too difficult?

Thanks again! This is exciting.

oldbushie

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Activity: 94

Merit: 10

Quote from: Keefe on October 15, 2013, 02:35:12 PM

My kit includes:
(4x) M3x0.5 12mm pan head screws
(4x) 4.7mm nylon spacers (between raised backplate tabs and board)
(4x) 0.8mm nylon washers (between board and F+F standoffs)
(4x) 6mm F+F standoffs (connects 12mm screws and cooler's spring-loaded screws)
(8x) 0.6mm metal washers (4 between screw heads and backplate tabs, and 4 stacked between cooler and X bracket)
(4x) 1.6mm nylon washers (between board and nuts for board support standoffs)

Optionally I can include 20x40mm of 11W/mK thermal pad, which can be cut into 10mm squares for 8 chips.

Just what I need. Could I order 4 kits, including thermal pads? I can pay in BTC.

I want to set mine horizontally on a surface like in MrTeal's pic above.

MrTeal

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I should mention that this is all to make it easy to screw on and off the heatsink in a similar way as you would on a CPU.

If you don't care about that and only plan to mount it once, you can just use a 6-32 1.5" screw and nut to hold the heatsink down. You can still even use the spring if you want. They're just a more of a PITA to install that way, especially if you take them on or off. Also, make sure you keep the springs and that little clip somewhere safe so you can put it back on later when you move the HS to your new 50PH/s Intel ASIC machine in early 2015 when BTC hits USD$5000.

Keefe

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My adapter kit for the Cooler Master Hyper 212 EVO includes:
(4x) M3x0.5 12mm pan head screws
(4x) 4.7mm nylon spacers (between raised backplate tabs and board)
(4x) 0.8mm nylon washers (between board and F+F standoffs)
(4x) 6mm F+F standoffs (connects 12mm screws and cooler's spring-loaded screws)
(8x) 0.9mm metal washers (1 between each screw head and backplate tab, and up to 4 stacked between cooler and X bracket)
(4x) 1.6mm nylon washers (between board and nuts for board support standoffs)

Optionally I can include 20x40mm of 11W/mK thermal pad, which can be cut into 10mm squares for 8 chips.

Price for kit is $3. Add $2 for pad. Add a flat $1.69 per order for USPS First-Class shipping within the US. Payment in BTC is preferred.

Bargraphics

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Every man is guilty of all the good he did not do.

Quote from: crazydownloaded on October 15, 2013, 02:09:48 PM

I've some spare thermal pad 11W/mk, $2 + shipping for each (shipping from California).
Payments via Paypal only, shipping same day via USPS.
Each piece is 37x33mm (you normally only need 33x33mm)
PM me for details and purchase.

(The thermal pad is this one: http://www.frozencpu.com/products/16878/thr-164/Fujipoly_Extreme_System_Builder_Thermal_Pad_-_14_Sheet_-_150_x_100_x_05_-_Thermal_Conductivity_110_WmK.html?id=BTEHkam2&mv_pc=312)

Where were you a week ago!!

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