The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 41.

nanook7

newbie

Activity: 48

Merit: 0

Quote from: Swimmer63 on November 17, 2013, 08:46:03 PM

Quote from: nanook7 on November 17, 2013, 08:23:08 PM

Quote from: Swimmer63 on November 17, 2013, 08:05:56 PM

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)

Swimmer63

legendary

Activity: 1593

Merit: 1004

Quote from: nanook7 on November 17, 2013, 08:23:08 PM

Quote from: Swimmer63 on November 17, 2013, 08:05:56 PM

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

newbie

Activity: 48

Merit: 0

Quote from: Swimmer63 on November 17, 2013, 08:05:56 PM

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

legendary

Activity: 1593

Merit: 1004

How are those Antec coolers working?

nanook7

newbie

Activity: 48

Merit: 0

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

MrTeal

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Activity: 1274

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Quote from: Mudbankkeith on November 17, 2013, 12:44:30 PM

Quote from: MrTeal on November 17, 2013, 11:39:46 AM

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.

xselam1988

jr. member

Activity: 59

Merit: 10

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.

Mudbankkeith

hero member

Activity: 868

Merit: 1000

Quote from: MrTeal on November 17, 2013, 11:39:46 AM

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.

MrTeal

legendary

Activity: 1274

Merit: 1004

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

agibby5

sr. member

Activity: 267

Merit: 250

Which are the mosfets?

Mudbankkeith

hero member

Activity: 868

Merit: 1000

Quote from: ryanb on November 17, 2013, 10:12:16 AM

Quote from: Mudbankkeith on November 17, 2013, 10:05:02 AM

Quote from: ryanb on November 17, 2013, 09:03:04 AM

Quote from: Mudbankkeith on November 17, 2013, 06:35:46 AM

Quote from: ryanb on November 16, 2013, 11:09:47 PM

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.

ryanb

legendary

Activity: 1148

Merit: 1000

Quote from: Mudbankkeith on November 17, 2013, 10:05:02 AM

Quote from: ryanb on November 17, 2013, 09:03:04 AM

Quote from: Mudbankkeith on November 17, 2013, 06:35:46 AM

Quote from: ryanb on November 16, 2013, 11:09:47 PM

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

hero member

Activity: 868

Merit: 1000

Quote from: ryanb on November 17, 2013, 09:03:04 AM

Quote from: Mudbankkeith on November 17, 2013, 06:35:46 AM

Quote from: ryanb on November 16, 2013, 11:09:47 PM

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

legendary

Activity: 1148

Merit: 1000

Quote from: Mudbankkeith on November 17, 2013, 06:35:46 AM

Quote from: ryanb on November 16, 2013, 11:09:47 PM

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

hero member

Activity: 868

Merit: 1000

Quote from: ryanb on November 16, 2013, 11:09:47 PM

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.

amer

full member

Activity: 168

Merit: 100

Quote from: MrTeal on November 15, 2013, 11:19:07 PM

Quote from: agibby5 on November 15, 2013, 07:50:24 PM

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?

jelin1984

legendary

Activity: 2408

Merit: 1004

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

agibby5

sr. member

Activity: 267

Merit: 250

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

ryanb

legendary

Activity: 1148

Merit: 1000

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

ChipGeek

full member

Activity: 198

Merit: 100

Quote from: ryanb on November 16, 2013, 08:31:15 PM

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.

Topic: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 41. (Read 137978 times)