Butterfly Labs - Bitforce Single and Mini Rig Box - page 84.

DeathAndTaxes

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Gerald Davis

Quote from: triplehelix on February 23, 2012, 04:02:09 PM

it seems like water cooling might be a good option for these units, both from a performance and noise perspective.

That was my first thought. Since they appear to be the thermally limited I wonder if you could get 900 MH/s with watercooling.

Two problems
a) no mounting holes. If it had any kind of pushthrough mounting holes you could use a universal northbridge water waterblock.

b) it looks like heatsink is epoxied on ? If so removing it is going to be tough and depending on the thermal epoxy used you might not be able to get enough of it off to get a smooth surface for mounting.

Maybe in revision b? A unit sold w/ no heat sinks or fans for watercooling?

SysRun

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bulanula, are you feeling ok?

Epoch

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Quote from: tritium on February 23, 2012, 04:08:23 PM

the heatsink is glued on isnt it, not much can be done other than pointing a fan at it

Running it with the side cover removed would likely help; those exhaust holes in the side panels are quite small.

tritium

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the heatsink is glued on isnt it, not much can be done other than pointing a fan at it

triplehelix

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it seems like water cooling might be a good option for these units, both from a performance and noise perspective.

bulanula

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OK. Now that the product seems to be genuine I have some questions for you all :

-what do you think will happen with the rest of the network ? Will all GPU miners cease to be profitable like the CPU miners ?

-has all the FPGA competition been wiped out with this weapon ?

-what will an ASIC do to the bitcoin network ?

-could this still be a long con and how can we see the warning signs in that case ?

Discuss !

Epoch

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Quote from: BFL-Engineer on February 23, 2012, 02:54:05 PM

The BitFORCE can operate up to 27C without throttling (or perhaps 20 max seconds every 12 minutes).
Beyond this temperature, the unit may go through throttle cycles more often. This may be improved
very soon. We'll do our best to keep the community informed.

I think the option of blinking the front LED when the unit is under a throttle condition is a good one; it gives a quick visual of the 'health' of the unit. If the LED is steady, we can be sure that we are getting full speed without constantly having to monitor the hashrate. I'd rather 'set and forget' it; put it in a corner and glance at the LED once in a while to ensure it doesn't need additional cooling.

BFL-Engineer

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Quote from: nbtcminer on February 23, 2012, 02:16:03 PM

This runs true for even those people who live in cold climate countries / areas; running an FPGA card in a heated room can result in poor mh/s. 22C is a good temperature but real world ambient tempuratures tend to be much higher.

The BitFORCE can operate up to 27C without throttling (or perhaps 20 max seconds every 12 minutes).
Beyond this temperature, the unit may go through throttle cycles more often. This may be improved
very soon. We'll do our best to keep the community informed.

Regards,

bombo999

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I wonder what their production capacity is, would be very interesting to know how many orders have been placed since the device has been confirmed

Garr255

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What's a GPU?

Awesome! I want one now! (Everyone wants one now) Oh yeah… Wink

Turbor

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BitMinter

that's cool !

Inaba

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Someone asked this in another thread... yes you can run both BFLs and GPUs from the same CGMiner session:

nbtcminer

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This runs true for even those people who live in cold climate countries / areas; running an FPGA card in a heated room can result in poor mh/s. 22C is a good temperature but real world ambient tempuratures tend to be much higher.

DeepBit

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Quote from: BFL-Engineer on February 23, 2012, 11:07:25 AM

Quote from: DeepBit on February 23, 2012, 10:58:59 AM

+22C recommended environment ?
Oh, I'll never be even close to have a chance to use BFL single :(

We were wondering, what is the actual environment temperature you're operating in?

Usually around +30 C.
+38C at this moment, but it's not usual for most normal people.

Backside of Icarus boards right under the chip reaches +96C in still air at those temps (+38), so I added additional small fan to be sure, since only up to +100C is allowed for those FPGAs. But at least it still worked fine without any errors :)

I care about such things because I don't see a way to create a cold environment for a big farm in 19" enclosures without some serious air conditioning.

* This post doesn't implies that BFL singles are bad in some way, it's clear that my environment is obviously unnaturally hot.

BFL-Engineer

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Quote from: DeepBit on February 23, 2012, 10:58:59 AM

+22C recommended environment ?
Oh, I'll never be even close to have a chance to use BFL single Sad

Hello Deepbit,

We were wondering, what is the actual environment temperature you're operating in?

Regards,

DeepBit

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+22C recommended environment ?
Oh, I'll never be even close to have a chance to use BFL single :(

jamesg

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AKA: gigavps

Bounty claim post -> https://bitcointalksearch.org/topic/bfl-single-in-the-wild-bounty-received-65752

RoloTonyBrownTown

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Quote from: SysRun on February 22, 2012, 06:01:36 PM

I would encourage gigavps to start his own thread when he posts next. Call it

"Why I'm cooler than all of you or: how I learned to stop worrying and love the BFL Singles."

Yeeeeeeeeeeeeeeeeeeeeeeeeeehaaaaaaaaaaaaaaaaaaaaaaaaaaw!

Works for me Cheesy

SysRun

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Portland Bitcoin Group Organizer

I would encourage gigavps to start his own thread when he posts next. Call it

"Why I'm cooler than all of you or: how I learned to stop worrying and love the BFL Singles."

Yeeeeeeeeeeeeeeeeeeeeeeeeeehaaaaaaaaaaaaaaaaaaaaaaaaaaw!

RoloTonyBrownTown

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Right, now that the other thread has been blissfully locked, this is the main thread for the BitForce units. As mentioned, it'd be nice to get some updated info in the first post, but not the end of the world if it doesn't happen I guess.

Let's try to keep it civil, yeah?

Topic: Butterfly Labs - Bitforce Single and Mini Rig Box - page 84. (Read 186948 times)