[BFL-Chip Groupbuy] $27,5/chip 50% - BTC,PayPal,SEPA - 420 sold, 0/100 batch #4 - page 12.

Lucko

hero member

Activity: 826

Merit: 1000

Quote from: bitpop on August 07, 2013, 07:52:22 PM

Lucko I think you have been locking it Wink

Yeah pgp urls broke

Yes I also think that is what happened... I was sleeping on(keyboard) my laptop... I need to slow down now... Burning candle on both ends is leaving its mark...

If anyone is interested how good samples are...

PROCESSOR 0: 10 engines @ 428 MHz -- MAP: B7E4 1011011111100100
PROCESSOR 3: 7 engines @ 354 MHz -- MAP: F206 1111001000000110
PROCESSOR 4: 12 engines @ 384 MHz -- MAP: F6DE 1111011011011110
PROCESSOR 5: 8 engines @ 342 MHz -- MAP: 85DC 1000010111011100
PROCESSOR 7: 9 engines @ 371 MHz -- MAP: 03FE 0000001111111110

This is with tweaked 1.2.5 firmware.... We are still in process of making ours... This is also the best test board can do. BFL power usage data are off a bit. Could be poor quality chips. But just to be sure we will use 4 chips per power module so it will work for sure...

GrapeApe

sr. member

Activity: 476

Merit: 250

Quote from: bitpop on August 07, 2013, 07:52:22 PM

Lucko I think you have been locking it Wink

Yeah pgp urls broke

I don't think the other thread is locked now. I believe the links are broken because the forum now has issues with shortened links.

bitpop

legendary

Activity: 2912

Merit: 1060

Lucko I think you have been locking it Wink

Yeah pgp urls broke

Lucko

hero member

Activity: 826

Merit: 1000

Quote from: Mudbankkeith on August 07, 2013, 02:50:42 AM

Any more news on the 16 chip design?

Yes. It is more or less ready and will be made in about 14 days for first test... Based on what we know now we are sure it will work. So it needs only samples now...

And it has a name COINTAMINATION

I must say I love it!!!

EDIT: GB buyers that have chips but not enough to fill full 16 chips board can buy more chips now. Board will be hosted for free(-electricity) till chips arrive and then we will add them to the board.

MrTeal

legendary

Activity: 1274

Merit: 1004

Quote from: Lucko on August 07, 2013, 01:06:09 AM

Bin like recycle bin... Looks like samples are chips that they will not even put in Jala...

They seem to be pretty terrible. I've had to use a knife to scrape the epoxy underfill off the top of the die on some.

Lucko

hero member

Activity: 826

Merit: 1000

First we need to figure out how much heat is coming off chips... It looks like BFL specs are off... 3 chips 38W... So not by much but they have low hashrates... Only 8GH... And it is not the board it is chips... Samples are low quality...

So then we will know heatsink needed and then we can make a sticker...

kjlimo

legendary

Activity: 2128

Merit: 1031

If anyone's buying chip credits, I still have a ton...

Min€r

sr. member

Activity: 359

Merit: 250

Quote from: Mudbankkeith on August 07, 2013, 02:50:42 AM

Hi Lucko, you need a COINADO sticker on the cooling fan for the units you fully assemble.

Any more news on the 16 chip design?

I can make the stickers if anybody need high quality ones, I can too print white and metallic on transaprent vinyl all with contour cut - Lucko has my contact details now too (sample chips). High quality printings need a vector based logo work what have to be in one layer (no overlaying vectors). So just contact me! Wink

Mudbankkeith

hero member

Activity: 868

Merit: 1000

Hi Lucko, you need a COINADO sticker on the cooling fan for the units you fully assemble.

Any more news on the 16 chip design?

Min€r

sr. member

Activity: 359

Merit: 250

Hi,

I send my 3 samples for the bigger board on Monday with registered mail to you - should receive soon Wink

Lucko

hero member

Activity: 826

Merit: 1000

Bin like recycle bin... Looks like samples are chips that they will not even put in Jala...

Swimmer63

legendary

Activity: 1593

Merit: 1004

Quote from: Lucko on August 07, 2013, 12:28:13 AM

Yes but it looks like samples are bin chips...

As in substandard shit? I'm not a tech guy. Just trying to interpret the lingo.

Lucko

hero member

Activity: 826

Merit: 1000

Yes but it looks like samples are bin chips...

Swimmer63

legendary

Activity: 1593

Merit: 1004

Quote from: Lucko on August 06, 2013, 12:38:14 PM

I think so yes... If I'm not mistaken theoretical max for that chip is 2.5...

If only 10 engine is not do to power supply we are in 200 to 300 $ range for sure... Maybe less with enough orders... But we will need some more time to look at findings to be sure... And test with more chips...

EDIT: It looks like chips are the problem...

Are you referring to the maximum for a 10 engine chip? I thought the typical BFL chips would have more power.

Lucko

hero member

Activity: 826

Merit: 1000

For unknown reason topic https://bitcointalksearch.org/topic/bfl-board-project-cointamination-eu-facility-orders-opened-for-chili-267649 was locked... Or someone with power hate that we took the lead... So for now I'm waiting to get answer why but it looks like they have changed some polices (see warning next to my PGP key signature)

ElitePork

donator

Activity: 164

Merit: 100

If it's 10 engines running, i will consider that to be a faulty chip.

According to BFL website, a grade D chip will have at least 12 engines running. https://products.butterflylabs.com/homepage-subproducts/65nm-asic-bitcoin-mining-chip.html

But this is a sample chip and i guess we can't complain much.
It still shows how professional are they to send chips that are below grade D....

For my jallyes, I have tried restarting it until i got at least 15 engines running on both chips. It works for me where the engine kinda fluctuate between 13 to 15 engines. Maybe you can try that out.

Lucko

hero member

Activity: 826

Merit: 1000

I think so yes... If I'm not mistaken theoretical max for that chip is 2.5...

If only 10 engine is not do to power supply we are in 200 to 300 $ range for sure... Maybe less with enough orders... But we will need some more time to look at findings to be sure... And test with more chips...

EDIT: It looks like chips are the problem...

ElitePork

donator

Activity: 164

Merit: 100

2.3GH/s is good enough for a chip though it's only 10 engine running. what are the estimated price for a board to have 8 mounted chips?

Kudos to the first working board Cheesy

Lucko

hero member

Activity: 826

Merit: 1000

Just to let you know...

Quote from: form on August 06, 2013, 10:13:09 AM

Busy day today...
Got it managed to get the board mining.
This first chip has not all internal engines available, so it is slower than normal. But it seems some of them will re-activate when increasing core-voltage.
I have to experiment with that later...

https://www.youtube.com/watch?v=nZIc03dKLIs

Scope: SPI decoding
Left meter: Chip-current in 100 mV per Ampere
Right meter: Core voltage

I believe we are the first that have a hashing board

form

newbie

Activity: 41

Merit: 0

Quote from: peonminer on August 05, 2013, 01:08:24 PM

Is this sale for chips, boards, or both?

Maybe both soon - for the chip-groupbuy look at this thread:
https://bitcointalksearch.org/topic/bfl-chip-groupbuy-275chip-50-btcpaypalsepa-420-sold-0100-batch-4-238052

For the board there will be a big update tomorrow.

Topic: [BFL-Chip Groupbuy] $27,5/chip 50% - BTC,PayPal,SEPA - 420 sold, 0/100 batch #4 - page 12. (Read 41859 times)