Bitcoin Forum
October 22, 2018, 11:16:47 AM *
News: Make sure you are not using versions of Bitcoin Core other than 0.17.0 [Torrent], 0.16.3, 0.15.2, or 0.14.3. More info.
 
   Home   Help Search Donate Login Register  
Pages: « 1 ... 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 [57]
  Print  
Author Topic: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!  (Read 176119 times)
adib
Sr. Member
****
Offline Offline

Activity: 369
Merit: 250


View Profile
July 04, 2014, 06:52:32 PM
 #1121

The rev2 requires good cooling in order to work properly

How do you define properly and good cooling?

I have a Rev.2 chip nanofury running at 3.65G with no active cooling and the stock heatsink Tongue

Hand soldered btw

Me too, but id does need a fan to go to 56 osc bits

TIPS - 19JLxDkCfn5x667xCeSgmYNop4WLR3ci27
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
Taugeran
Hero Member
*****
Offline Offline

Activity: 658
Merit: 500


CCNA: There i fixed the internet.


View Profile
July 04, 2014, 11:19:21 PM
 #1122

The rev2 requires good cooling in order to work properly

How do you define properly and good cooling?

I have a Rev.2 chip nanofury running at 3.65G with no active cooling and the stock heatsink Tongue

Hand soldered btw

Me too, but id does need a fan to go to 56 osc bits

 Smiley 56 bits 3.65G 0.955V core voltage 0.25% error natural convection

Bitfury HW & Habañero : 1.625Th/s
tips/Donations: 1NoS89H3Mr6U5CmP4VwWzU2318JEMxHL1
Come join Coinbase
Tyger
Full Member
***
Offline Offline

Activity: 139
Merit: 100



View Profile
July 07, 2014, 10:34:33 AM
 #1123

That should be good enough if it keeps running like that, if the speed go's down after some time your cooling does not cut it.
pinkfloyd11
Newbie
*
Offline Offline

Activity: 56
Merit: 0


View Profile
July 15, 2014, 12:30:16 PM
 #1124

Hello

there is anyone that sell bitfury chips?

Thanks in advice
Tyger
Full Member
***
Offline Offline

Activity: 139
Merit: 100



View Profile
July 15, 2014, 02:04:10 PM
 #1125

Maybe 5 or something, 2 or 3 rev1 and some rev2's
[gadget]
Newbie
*
Offline Offline

Activity: 30
Merit: 0


View Profile
July 31, 2014, 06:09:20 PM
 #1126

as posted in the NanoFury thread, I've got some Bitfury v2's for sale. Open to trades, pm me if interested
pinkfloyd11
Newbie
*
Offline Offline

Activity: 56
Merit: 0


View Profile
October 27, 2014, 06:20:36 PM
 #1127

Hi, how you have obtained 3.65 GH?  Have you used mcp2210 usb to spi o other chip? Thanks
Taugeran
Hero Member
*****
Offline Offline

Activity: 658
Merit: 500


CCNA: There i fixed the internet.


View Profile
October 27, 2014, 11:02:44 PM
 #1128

Hi, how you have obtained 3.65 GH?  Have you used mcp2210 usb to spi o other chip? Thanks

The 3.65+Gh/s per chip requires a xcellent cooling for sustained and long term operation.

To get said performance each chip will need to be supplied with 3.75-4A @ 0.96-1.075V with very low ripple voltage of preferably pk-pk less than 15mV

Bitfury HW & Habañero : 1.625Th/s
tips/Donations: 1NoS89H3Mr6U5CmP4VwWzU2318JEMxHL1
Come join Coinbase
vs3
Hero Member
*****
Offline Offline

Activity: 622
Merit: 500


View Profile WWW
November 03, 2014, 07:17:35 AM
 #1129

I have a tray of chips and other bitfury gear left over for sale :

I have a tray of 260 BitFury chips from the second revision (that's still Gen-1) for sale. Those are the same ones which had reported over 4GH/s. For the sake of perfectionism I'd say you should expect to achieve over 3.5GH with those when pushed, and when running on "power saving mode" should do easily below 0.3-0.4W/GH

I am selling it as a full unopened tray. I am not interested in breaking it apart and will not be selling individual chips.



I have a BitFury M-card v3.0 + H-Board PCI v2.2 with heatsink for sale.

If that matters to anyone - they're brand new, never used, never powered, still in their original packaging from punin (from bitfurystrikesback.com). Those are leftovers from a previous project that never took off and I don't see any point of keeping them around to collect dust.

I also have the Raspberry PI with the original SD card as preloaded by BFSB (which is also in its original box and has never been powered). I don't insist on selling the RasPI as I can still use it for other purposes, but if you want it - it's yours.



This is just the essential piece. Please see the full posts for more pictures and details.

Pages: « 1 ... 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 [57]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!