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Author Topic: Used Bitcoin ASICs (KNC, Bitfury, & HashFast) - Accepting Offers  (Read 2502 times)
CoinHoarder (OP)
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August 06, 2014, 08:53:44 PM
Last edit: August 07, 2014, 05:12:33 AM by CoinHoarder
 #1

Please reply to this thread with offers. I am selling these for a group buy, as I have since moved and can no longer host the hardware. So, I prefer all bids be done out in the open as replies to this thread, so that everything is as transparent as possible. All items will be shipped from the USA via the cheapest method possible, you may pay for expedited shipping if you like.

Please submit your offer including shipping and the country to which the ASIC(s) will be sent to. Escrow is available, but you will need to cover the fees on top of your offer, so please consider this before making an offer.

We have the following available for purchase:

1. ONE - Hash Fast Baby Jet
1a. Averages 390 Gh... more or less at stock clock speed... is supposedly overclockable to 750 Gh according to Hash Fast's website
1b. Is the quietest Bitcoin mining rig I've ever operated (since it's water cooled)
1c. Comes with a raspberry Pi in a nice case.
1d. Hash Fast claims it uses about 350 watts, although I have not confirmed this with a kill-a-watt (I don't own one).
1e. This mining rig is extremely stable and has not crashed once since it has been running.
1f. Firmware has not been updated in a while, it could possibly run faster with an update.
1g. Power supply is included

2. ONE - KNC Jupiter
2a. Averages 440 Gh... more or less at stock clock speed
2b. KNC claims 600 watts, but I don't have a kill-a-watt so I haven't tested it, since 1/4th the cores are not hashing I would expect it to use at least 3/4ths the energy.
2c. This rig is extremely stable
2d. This unit was delivered partially working, and about 1/4 of the cores do not work. You may be able to fix them.. I had no luck.
2e. Firmware has not been updated in a while, it could possibly run faster with an update.
2f. Power supply not included, but no host is neccessary

3. TWO - Bitfury "400 Gh*" Full Rigs
* They do not run at full speed
3a. I have had a lot of problems with these rigs as far as stability and speed goes, they will run anywhere from 100 Gh to 400 Gh. To get them to run full speed requires a lot of attention and time. I can only guarantee these rigs will run at around 100 Gh, but with some love and "H card musical chairs" as I've coined it, they can be made to run faster.
3b. The speed decreases slowly over time, and a hard reset (IE. turning the power on and off on the PSU) is the only way to reset them back to as quick as they can run. You will likely need to do this at least once a day unless you figure out how to make them run stable.
3c. Bitfury rates these at 320 watts or less each, since they are partially working it probably uses less.
3d. Power supply not included, but these do come with Pis and do not require a host.

Please reply with your offer including shipping, the country these will be shipped to, and an expiration date for you offer (IE. next difficulty adjustment.)

Thanks
Blazed
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August 06, 2014, 11:40:16 PM
 #2

Baby Jet - .39 and I pay shipping
Jupiter - .4 and I pay shipping

The Bitfury sound like a pita, but if we make a deal on the other 2 I will buy them and tinker a bit.

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August 07, 2014, 05:11:38 AM
 #3

Baby Jet - .39 and I pay shipping
Jupiter - .4 and I pay shipping

The Bitfury sound like a pita, but if we make a deal on the other 2 I will buy them and tinker a bit.



Thanks for the offer. I'm going to leave this open for a bit. I forgot to mention in the OP, please state an expiration date for your offer.. like next difficulty adjustment or whatever you want.
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August 07, 2014, 03:06:55 PM
 #4

How close was Blazed on the Baby Jet offer?  Wink  Was going to offer the same but he beat me to it.

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August 07, 2014, 08:15:24 PM
 #5

What version H-cards are in the Bitfury rigs?
CoinHoarder (OP)
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August 07, 2014, 11:03:59 PM
 #6

How close was Blazed on the Baby Jet offer?  Wink  Was going to offer the same but he beat me to it.

Well, it seems that may be the best we can get here. I am debating whether we should just throw them up on Ebay or not, but I would prefer to sell them here for Bitcoins as it is easier for everyone.

What version H-cards are in the Bitfury rigs?

v2.2
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August 09, 2014, 12:01:45 AM
 #7

Alright, I have decided to go ahead and sell the Jupiter and Baby Jet to Blazed. As discussed through PM, we will use his UPS account to pay for shipping, and I will do my best to get them shipped out tomorrow.

Blazed, please send the total (.79 BTC) to our old group account located at this address this evening: 1MHP7hDgFQw7Q5MUNeP6ecB2srxu8fuezh

If you would like to arrange escrow, please work that out with whomever you would like tonight and forward them the funds, and have them reply here stating they will escrow the deal (please pick someone very reputable if so.) If the payment is received, or the escrow agent confirmed they received the payment, then I will do my best to have the mining rigs shipped tomorrow afternoon.

Please PM me to tell me your UPS account info to charge for shipping and your name/address. Thanks for your offer and for buying the units. I think you will be happy with them, they are very stable machines.

The Bitfury rigs are still for sale.

Thanks all
Blazed
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August 09, 2014, 01:32:08 AM
 #8

https://blockchain.info/tx/2ee528f4983c4e949cd9f4a3f4434ef78b918880a86261af5164dedd6a9360df

I will send you my shipping info
Blazed
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August 09, 2014, 01:35:59 AM
 #9

How much more for the flakey miner?
CoinHoarder (OP)
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August 09, 2014, 02:11:20 AM
 #10

How much more for the flakey miner?

Plz make an offer.. It doesn't seem like anyone's really interested in them. I think something like half price $/Gh sounds fair, calculated at 100 Gh each. I believe you can probably get them to run faster, you will just need to manually reset them every now and then. Laying the rigs on their side helps with the stability.
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August 09, 2014, 02:16:17 AM
 #11

.21 for both...toss in with the other 2 rigs.
btljuice
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August 09, 2014, 02:17:26 AM
 #12

I can offer BTC0.1 each (+shipping) for both of the BitFury rigs. I'll take a gamble on them.
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August 09, 2014, 02:18:34 AM
 #13

Honestly if you want them...you can get em.  I will just take the 2 other rigs!
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August 09, 2014, 02:32:53 AM
 #14

Honestly if you want them...you can get em.  I will just take the 2 other rigs!

Doesn't matter to me. I have told both of you via PM that the highest bidder gets them.

Thanks
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August 09, 2014, 02:37:04 AM
 #15

I will let him buy if he wants...if not I will offer .21BTC maximum.
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August 09, 2014, 02:42:49 AM
 #16

You said #3 operates at 100-400Gh/s and decreases over time. Are you saying it decreases from 400 to 100 over time, or it goes even lower than 100?
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August 09, 2014, 02:52:32 AM
 #17

You said #3 operates at 100-400Gh/s and decreases over time. Are you saying it decreases from 400 to 100 over time, or it goes even lower than 100?

It's rated from the manufacturer to do 400 Gh each, and they mostly did for a while but had major stability problems. I think some cards have died since then and they no longer run at 400 Gh.. I would say that you may be able to get them to run up to 200 Gh+, but over the course of the day the cards cut out and it will likely end up around 100 Gh. A hard reset is required daily pretty much, but you could probably keep them above 100 Gh. With a lot of tweaking you may have better luck than I did.. Or if you have experience running Bitfurys rigs.
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August 09, 2014, 03:15:11 AM
 #18

I will let him buy if he wants...if not I will offer .21BTC maximum.

It seems you got them unless zhink makes an offer above .21 btc

It looks like btl went offline so I guess he decided he didn't want to go above .21

Plz make an offer soon btl or zhink if you want the rigs so we can tie this up.

Thanks
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August 09, 2014, 03:22:18 AM
 #19

BTC0.22 for both the bitfury rigs. Final offer.
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August 09, 2014, 03:25:04 AM
 #20

I am out...max I was going is .21BTC
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