[ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!

[adib]

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

Hand soldered btw

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

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[Taugeran]

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

Hand soldered btw

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

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

[Tyger]

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]

Hello

there is anyone that sell bitfury chips?

Thanks in advice

[Tyger]

Maybe 5 or something, 2 or 3 rev1 and some rev2's

[[gadget]]

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

[pinkfloyd11]

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

[Taugeran]

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

[vs3]

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.