btt

[pembo210]

Hi lunarboy. I know that some have received their batch 3 units. I have a 1300w platinum PSU and a dedicated circuit all set and waiting for our 4 module rig. Let the 1Th/s barrier fall!

 

[djjacket]

Whilst we are discussing options though. What are the best options for bulk chip purchases. This would seem to be the the most cost effective way to vastly increase hash power. Do you have the mad skills to handle this yourself? Or would we need to bulk purchase and let a 3rd party perform the operation for us?

Do you have any thoughts on this direction?

My electronic component building skills are rusty(high school), so I wouldn't trust myself to get that done in a timely fashion. As to the chips themselves I really don't see Avalon chips as a great play at this point. I'd consider clones built around BFL chips with their significant efficiency advantage. Does anyone know of a BFL clone project?

Cheers.

There are a couple in the works.  This one seems the most promising at the moment:

https://bitcointalk.org/index.php?topic=258622.0

[creativex]

Ty, that looks great. Teal knows his stuff.

[Yogi2013]

Hi AngelSky. We're not an investment fund...bASIC-Mining is a mining company and I have more than enough to do without morphing us into something we're not. I don't know anything at all about coinlenders, why should we should trust them? ...the exchange they're on? If we follow this course and these proposed investments go south(just as they've done with numerous other mining concerns) there's only one person that will be blamed for the lack of foresight. We invested in ASICMiner when we had next to zero mining revenue and I wasn't managing a minirig, four singles, four GPUs, three Avalons(with a fourth on the way), and all the power and cooling requirements that go along with dissipating 6500w.

Cheers.

This is exactly why I'm still long BASIC-MINING creativex.

agreed wtb creativex calls let go of the guys ears good management is hard to find and here we have it.

As a side note regarding SEC stupidity cant you simply reincorporate abroad say in Asia and relist/transfer shares. Honestly if the American government wants to over regulate confiscate etc there are many countries that still respect personal property and the entrepreneurial spirit.

[medicine]

Hi AngelSky. We're not an investment fund...bASIC-Mining is a mining company and I have more than enough to do without morphing us into something we're not. I don't know anything at all about coinlenders, why should we should trust them? ...the exchange they're on? If we follow this course and these proposed investments go south(just as they've done with numerous other mining concerns) there's only one person that will be blamed for the lack of foresight. We invested in ASICMiner when we had next to zero mining revenue and I wasn't managing a minirig, four singles, four GPUs, three Avalons(with a fourth on the way), and all the power and cooling requirements that go along with dissipating 6500w.

Cheers.

This is exactly why I'm still long BASIC-MINING creativex.

agreed wtb creativex calls let go of the guys ears good management is hard to find and here we have it.

As a side note regarding SEC stupidity cant you simply reincorporate abroad say in Asia and relist/transfer shares. Honestly if the American government wants to over regulate confiscate etc there are many countries that still respect personal property and the entrepreneurial spirit.

More like all countries, except the US, for better or worse, have less rules and regulations.  It's kind of ironic actually because US residents often lead the way when it comes to business innovation.  It's almost like the government there is mirroring the fear behavior that they teach their citizens.

[MilkyLep]

Nearly 3x the amount of bids vs asks right now.

[creativex]

I had some time to tinker today so I stripped one of the singles down to it's bare board to get an idea what kind of water block would fit. Both swiftech and enzotech make northbridge blocks that would fit...at least in theory. Trouble is the chips on the BFLs are pretty spread out and these are really small blocks. I may go ahead and order a couple as it would only be .75BTC or so to find out. I have a pump, clamps, and hoses as I've been a watercooled computer nut for years.



(credit to xoxide.com)

When I put the single back together I cleaned the chips and sinks with alcohol and applied a dot of MX-2 paste to each chip rather than re-using the thermal pad supplied by BFL. When I powered it back up with a delta intake and exhaust fan both connected directly to the PSU(LOUD) I was greeted with temps that never climbed above 42c(19c ambient). That single is now approximately 15c cooler than the other three or the engines in the minirig. It remains to be seen if this will translate into more shares submitted, but it was a larger drop than I'd expected.

Cheers.

Edit:

[lunarboy]

Some interesting and generally calming words from conversation on the latest letstalkbitcoin episode about pirate40, SEC and bitcoin securities.

first segment is the relevant part.

https://soundcloud.com/mindtomatter/e27-ponzis-malware-and-the?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TheDailyBitcoinShow+%28Let%27s+Talk+Bitcoin!%29

[creativex]

Ty lunarboy, that was a very interesting discussion.

[bobboooiie]

I had some time to tinker today so I stripped one of the singles down to it's bare board to get an idea what kind of water block would fit. Both swiftech and enzotech make northbridge blocks that would fit...at least in theory. Trouble is the chips on the BFLs are pretty spread out and these are really small blocks. I may go ahead and order a couple as it would only be .75BTC or so to find out. I have a pump, clamps, and hoses as I've been a watercooled computer nut for years.



(credit to xoxide.com)

When I put the single back together I cleaned the chips and sinks with alcohol and applied a dot of MX-2 paste to each chip rather than re-using the thermal pad supplied by BFL. When I powered it back up with a delta intake and exhaust fan both connected directly to the PSU(LOUD) I was greeted with temps that never climbed above 42c(19c ambient). That single is now approximately 15c cooler than the other three or the engines in the minirig. It remains to be seen if this will translate into more shares submitted, but it was a larger drop than I'd expected.

Cheers.

Edit:

For some reason I enjoy posts like this A LOT. Keep up the good work and more HW porn like this !

[creativex]

...you may be a fellow geek if...

I modded one more single before I turned in, mostly for experiment control purposes as I'm not able to tell one single from another or a single from a minirig engine by scrutinizing bfgminer's output and I wanted the results to be crystal clear. I've numbered the singles and connected them to corresponding rails on the beastly antec PSU, but it doesn't help much when trying to determine which single is running hot or cold due to the way the minirig reports and the fact that I have them all plugged into one powered hub and one nekked mobo. I've snapped off a few screenies throughout the morning to help with examining the effects of my mods:





It got cold here last night(cold for July in MI at any rate) so ambient around the bfl gear dipped below 16c with the two ACs running...which turned them into fans as they don't have settings lower than 16c. This caused all of the engines to increase their hashpower overnight. It's now right around 18c ambient around the gear and all of the engines have risen in temp slightly with the two I modded rising the least and continuing to perform above average and above spec.

My conclusion is that this is geek time well spent and we should be able to increase our hashrate by a few % just by optimizing airflow.

Cheers.   

[xhomerx10]

CreativeX,

 Keep it up!  You rock.

[MilkyLep]

Damn more awesome news from bASIC!

Love the tinkering!  Can't wait to see whats in store.

[creativex]

Thanks guys. I finished modding the other two singles and averaged the results after several hours of operation. The results are as follows:



This is with ambient temp ranging from 16c - 18c. The minirig had a portable AC blowing directly into it's intake during this time while the singles did not, though the singles have all the high performance fans and TIM replacement while the minirig was stock.

My conclusion here is that if it's possible to take down the minirig and mod one engine at a time while the others continue hashing it will be worthwhile. With this in mind I stripped our minirig.



This is with one engine out for modding...the other 7 are still hashing. Now BFL's choice of low profile fans for the singles makes more sense as there's not quite enough room for our high performance 90mm fans on 6 of the 8 minirig engines. Apparently they didn't want to source or stock two types of 90mm fans. There's also not enough room to replace the case fans with deltas. I'm thinking it may be possible to increase the space between the lower 6 engines enough to squeeze in higher performance HS fans and this combined with replacing the thermal pads with high performance paste should improve performance significantly.

Cheers.

 

[AngelSky]

gj!

[JimiQ84]

This is with one engine out for modding...the other 7 are still hashing. Now BFL's choice of low profile fans for the singles makes more sense as there's not quite enough room for our high performance 90mm fans on 6 of the 8 minirig engines. Apparently they didn't want to source or stock two types of 90mm fans. There's also not enough room to replace the case fans with deltas. I'm thinking it may be possible to increase the space between the lower 6 engines enough to squeeze in higher performance HS fans and this combined with replacing the thermal pads with high performance paste should improve performance significantly.

Cheers.

I just love yours tinkering

[djjacket]

Thanks guys. I finished modding the other two singles and averaged the results after several hours of operation. The results are as follows:



This is with ambient temp ranging from 16c - 18c. The minirig had a portable AC blowing directly into it's intake during this time while the singles did not, though the singles have all the high performance fans and TIM replacement while the minirig was stock.

My conclusion here is that if it's possible to take down the minirig and mod one engine at a time while the others continue hashing it will be worthwhile. With this in mind I stripped our minirig.



This is with one engine out for modding...the other 7 are still hashing. Now BFL's choice of low profile fans for the singles makes more sense as there's not quite enough room for our high performance 90mm fans on 6 of the 8 minirig engines. Apparently they didn't want to source or stock two types of 90mm fans. There's also not enough room to replace the case fans with deltas. I'm thinking it may be possible to increase the space between the lower 6 engines enough to squeeze in higher performance HS fans and this combined with replacing the thermal pads with high performance paste should improve performance significantly.

Cheers.

 

Nice - It looks like you might be able to squeeze out another 'half a single' ~30 GH if you can cool those engines.  They should have an option to just sell the engines and forget the packaging and let the geeks figure out the best way to mount a cool these babies.

[davos]

BFL Minirig SC added. Posted: 11 days ago
Dear virtual shareholders,

bASIC-Mining is pleased to announce the further expansion of it's ASIC mining hardware with the addition of a Butterfly Labs Bitforce Minirig SC. The Minirig SC will be expected to add 480 - 500Gh/s to bASIC-Mining's rapidly expanding hashrate. With this new addition bASIC-MINING has increased it's hashing power to approximately 925,000 Mh/s.

Cheers,

CreativeX

https://bitcointalk.org/index.php?topic=130982.800

This remains the most recent news item posted to BTCT. I'm assuming you're waiting to get the Batch 3 order to post another update, but I think the work you're doing right now on optimization is probably something worth publicizing - perhaps once you've got numbers from having gone through all of the BFLs.

[MilkyLep]

I agree but I'm sure creativex has his valid reasons.

[AngelSky]

When you do great work it's sometimes good to show it to people.