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Topic
Board Computer hardware
Re: [WTB] Raspberry Pi model B+ v1.2 cpu rev. 0010
by
johnfox
on 14/09/2017, 07:16:28 UTC
Hey, that seems to be perfect fit. I will PM you with details.

I was curious because i got a B+ as domotica server.

Code:
pi@raspberrypi ~ $ cat /proc/cpuinfo
processor       : 0
model name      : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS        : 2.00
Features        : half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xb76
CPU revision    : 7

Hardware        : BCM2708
Revision        : 0010

Will this going to work with your needs ? I dont mind upgrading  Wink
Post
Topic
Board Computer hardware
[WTB] Raspberry Pi model B+ v1.2 cpu rev. 0010
by
johnfox
on 12/09/2017, 08:35:22 UTC
Hi all,

for my mining rig I'd like to buy Raspberry Pi model B+ v 1.2 with chipset revision 0010.

Specifically I need chipset revision 0010 because of custom linux kernel that won't work on new chipset revisions.
The chipset revision can be found out by issuing following command on the console:

Code:
cat /proc/cpuinfo

Output should be (note the Revision line):
Code:
pi@raspberrypi ~ $ cat /proc/cpuinfo
processor : 0
model name : ARMv6-compatible processor rev 7 (v6l)
Features : swp half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb76
CPU revision : 7

Hardware : BCM2708
Revision : 0010
Serial : 0000000089f8fb06

I'm willing to pay in BTC or exchange for brand new Raspberry Pi any model.
Post
Topic
Board Computer hardware
Topic OP
[WTS] Ztex FPGA boards rev. 1.15y2
by
johnfox
on 26/10/2015, 19:01:58 UTC
Currently have 25 pieces of the Ztex FPGA board with 4 x Spartan 6 FPGA chip for sale.
Info: http://www.ztex.de/usb-fpga-1/usb-fpga-1.15y.e.html

PM with offers.
Post
Topic
Board Mining (Altcoins)
Re: ReUse of ZTEX FPGA 1.15y Boards - profitable LTC Mining (Guide)
by
johnfox
on 01/04/2014, 15:45:23 UTC
Hi,

I'm trying to get this running on my ztex 1.15y fpga boards and I'm getting following invalid nonce errors:

 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-2: checkNonce failed for 0181301E hash7 1488598D                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-2: exit 0181301E                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-4: checkNonce failed for 0180D945 hash7 52440EE0                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-4: exit 0180D945                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-2: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: checkNonce failed for 0180E45E hash7 683B6788                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: exit 0180E45E                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-4: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: checkNonce failed for 0180EE33 hash7 9752A937                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: exit 0180EE33                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: entering poll loop   

I have forced the frequency to 100MHz (lowest setting possible) and still getting this.
Anyone have and idea where to look?

thx a lot
Post
Topic
Board Computer hardware
Re: [WTB] Iomega Zip drive 100MB
by
johnfox
on 07/08/2013, 14:17:33 UTC
Well ... as you can see it's hard to get zip drive even to read the wallet.dat Cheesy

No, I'm kidding. I don't use it for that purpose.
Post
Topic
Board Computer hardware
Re: [WTB] Iomega Zip drive 100MB
by
johnfox
on 07/08/2013, 10:42:32 UTC

I knew I wasn't the first person to think of putting a wallet.dat on a zip disc haha.

Haha - you got me on this Cheesy It's perfect right? unless your zip drive fails ...
Post
Topic
Board Computer hardware
Re: [WTB] Iomega Zip drive 100MB
by
johnfox
on 07/08/2013, 10:32:43 UTC
I have one here with a SCSI interface...

Thanks for offer, SCSI is not viable option I am afraid.
Post
Topic
Board Computer hardware
Topic OP
[WTB] Iomega Zip drive 100MB
by
johnfox
on 06/08/2013, 09:38:38 UTC
Hi all,

for purpose of saving my company archive I need Iomega ZIP drive for 100MB zip diskettes preferably with USB interface, but Parallel would do as well.
I had two of those and both broke down this week.

Cheers.
Post
Topic
Board Auctions
Re: [WTS] 13 Ztex FPGA boards (rev. 1.15y)
by
johnfox
on 06/08/2013, 07:36:34 UTC
Ladies and gentleman the auction has ended. Thank you for biding. I am afraid I have to decline all bids under starting price. The rest of you will be contacted via PM Smiley.

Have a nice day.
Post
Topic
Board Auctions
Re: [WTS] Complete mining rig avg 8.7Gh/s based on Ztex cards
by
johnfox
on 06/08/2013, 07:07:12 UTC
Ladies and gentleman, auction has ended - everything else will be solve via PM Smiley
Post
Topic
Board Auctions
Re: [WTS] Complete mining rig avg 8.7Gh/s based on Ztex cards
by
johnfox
on 05/08/2013, 17:36:10 UTC
I guess me as well, I'm just trying to figure out how can I use them except bitcoin mining. Not really monte carlo fan Smiley

I guess the auction is going to end soon.
Post
Topic
Board Auctions
Re: [WTS] Complete mining rig avg 8.7Gh/s based on Ztex cards
by
johnfox
on 05/08/2013, 14:45:05 UTC
as there have been no offers...
sadly I think your a little late to sell, these would have sold pretty well a month or so ago, but ghs/btc is a lot lower now..

Ill offer you 8btc per rig inc shipping and escrow, and I do expect it to be rejected, but I wont go higher Cheesy
I maybe interested in 2 rigs though, I have a soft spot for ztex tbh

I'm afraid you are right, no one wants my nice custom build rig:). I am afraid I can not accept your offer, especially the inc. shipping part Smiley. Also I imagined some BTC for the raspberry pi at least.
I want, but price is too high Grin

But just imagine how much love and care I put into this machine, that must be worth something   Smiley
Post
Topic
Board Auctions
Re: [WTS] 13 Ztex FPGA boards (rev. 1.15y)
by
johnfox
on 05/08/2013, 14:31:05 UTC
bump

Thank's for bidding, but I can not sell under 0.85 Smiley
Post
Topic
Board Auctions
Re: [WTS] Complete mining rig avg 8.7Gh/s based on Ztex cards
by
johnfox
on 05/08/2013, 13:19:19 UTC
as there have been no offers...
sadly I think your a little late to sell, these would have sold pretty well a month or so ago, but ghs/btc is a lot lower now..

Ill offer you 8btc per rig inc shipping and escrow, and I do expect it to be rejected, but I wont go higher Cheesy
I maybe interested in 2 rigs though, I have a soft spot for ztex tbh

I'm afraid you are right, no one wants my nice custom build rig:). I am afraid I can not accept your offer, especially the inc. shipping part Smiley. Also I imagined some BTC for the raspberry pi at least.
Post
Topic
Board Auctions
Re: [WTS] Complete mining rig avg 8.7Gh/s based on Ztex cards
by
johnfox
on 03/08/2013, 20:12:45 UTC
Sounds good.
Because you are a Junior menber and to avoid troubles, could you upload some pictures?
Thanks!!!

Hi, sorry for delay I was in a bit of hurry.
Made some photos from the installation site. As you can see we have 6 rigs in total, I made some close up photos of one of them and screen shot of bfgminer showing the cards in action.

http://i.imgur.com/CsNlbwol.jpg http://i.imgur.com/ncQfV7gl.jpg http://i.imgur.com/qReYgEll.jpg http://i.imgur.com/R6sSa7El.jpg http://i.imgur.com/fUYHVmSl.jpg

If interested you can browse complete photo gallery here: http://imgur.com/a/BjWc7#6
Post
Topic
Board Auctions
Re: [WTS] 13 Ztex FPGA boards (rev. 1.15y)
by
johnfox
on 02/08/2013, 15:17:49 UTC
Thanks for bidding. Current auction status is:

Code:
Nick name Card count BTC/card Total BTC Remaining cards
silverston 13 0.9 11.7 0

Please bid in following format: "N @ P" where N=number of cards, P=price per card.
Post
Topic
Board Auctions
Re: [WTS] Complete mining rig avg 8.7Gh/s based on Ztex cards
by
johnfox
on 02/08/2013, 13:35:33 UTC
Would you be interested in taking USD for this rig? I am interested in the buy it now, but would need to pay USD to complete this transaction.

Thanks for offer but right now I am interested in BTC only. I will contact should this condition change.

Nice rig, ill be watching...

john.k is your best escrow service Wink

Hehe thanks for compliment and escrow tip Smiley

Sounds good.
Because you are a Junior menber and to avoid troubles, could you upload some pictures?
Thanks!!!

Sure, these photos were taken as build documentation. Right now it is physically located in different place then I am today. Will post more photos later today.
Post
Topic
Board Auctions
Topic OP
[WTS] Complete mining rig avg 8.7Gh/s based on Ztex cards
by
johnfox
on 02/08/2013, 12:40:51 UTC
I'm selling complete mining rig based on 10 Ztex FPGA boards revision 1.15y.

http://i.imgur.com/W9zQCQG.jpg http://i.imgur.com/BQppeOV.jpg http://i.imgur.com/x3GLJeTl.jpg


Ztex 1.15y card info

Rig basic parameters:
  • Hashing power: 8.5 - 9Gh/s - depends on cooling and ambient temperature.
  • Data connection: Ethernet
  • Power consumption: cca 450W@220V

Rig description:
  • 10 Ztex 1.15y cards with heat sinks in removable cartridge
  • 10 port usb hub (powered)
  • 8 x 12 cm Artic cooler fans @ 1300rpm
  • Raspberry Pi with mining software
  • Fortron 750W power supply (overkill for ideal efficiency)
  • Custom case (re)design

Optionally for someone who knows what he wants Smiley
Additionally I can offer Microchip PIC based custom engineered solution for the rig remote control, featuring:
  • 5x temperature sensor
  • 8x fan rpm sensing
  • control over fan speed (noise/air flow control/reduction)
  • control over PSU - you can power cycle your rig remotely (this feature was newer needed in "production", but is functional Wink )
The control board is connected to the RPi via i2c and both is powered from the permanent power supply from the PSU. This is offered free of charge and intended for someone how can appreciate and deal with bit of DIY engineering Smiley

http://i.imgur.com/mnMWWyjl.jpg http://i.imgur.com/ZZQfRTll.jpg

To start mining you will need internet connection and basic linux/unix skills. I can provide installation instructions. Additional support is not provided.

Additional info: Please PM me if you are interested in buying this rig and want more pictures or info.

Auction info:
  • Starting price: 10.5 BTC
  • Buy it now price: 14.5 BTC
  • Minimal increment: 0.1 BTC

I'm shipping from Czech republic (EU).
Price does not include shipping and I am opened for suggestions and preferred shipping options. Personal pickup is possible and due to weight and size is preferable.

Auction ends at August 05, 2013 11pm forum time (i.e. UTC if I'm not mistaken:) ).
Winners are expected to send funds within 36 hours from an address which is in their control and can be signed/verified.
Escrow is possible, if you don't know anyone choose your "escrower" from Escrow list on this forum.

INFO: If you want individual Ztex cards check my other auction - selling 13 Ztex cards (incl. heat sink, fan, usb cable and 3pin power connector).

Timer removed. End time: 2013-08-05+23:00:00
Post
Topic
Board Auctions
Topic OP
[WTS] 13 Ztex FPGA boards (rev. 1.15y)
by
johnfox
on 02/08/2013, 12:34:11 UTC
I'm selling 13 Ztex FPGA boards revision 1.15y produced under Ztex license.

http://i.imgur.com/4SY3sFal.jpg

Ztex 1.15y card info
Ztex wiki

Card parameters:
  • Hashing power: 850 - 900Mh/s - depends on cooling and ambient temperature.
  • Data connection: USB interface
  • Power consumption: cca 43W@12V (including fans)
In addition to each card you will receive heat sinks, fans, usb cable and 3 pin power connector.

To start mining you will need sufficient 12V power supply (for one board any old and functional PC ATX power supply will do, for more then one card you will need to do some math;) ) and a PC or similar device to run the mining software (bfgminer, cgminer, etc.) - e.g. Raspberry Pi.

Auction info:
  • Starting price: 0.9 BTC/card
  • Buy it now price: 1.5 BTC/card
  • Minimal increment: 0.05 BTC/card

I'm shipping from Czech republic (EU).
Price does not include shipping and I am opened for suggestions and preferred shipping options. Personal pickup is possible.

Auction ends at August 05, 2013 11pm forum time (i.e. UTC if I'm not mistaken:) ).
Winners are expected to send funds within 36 hours from an address which is in their control and can be signed/verified.
Escrow is possible, if you don't know anyone choose your "escrower" from Escrow list on this forum.

INFO: If you want 10 devices at once check my other auction - selling complete mining rig (power supply, RPi, custom case design, etc.).

Timer removed. End time: 2013-08-05+23:00:00
Post
Topic
Board Beginners & Help
Re: Bitcoin-24
by
johnfox
on 22/04/2013, 09:34:22 UTC
If I am not mistaken the bank accounts of the bitcoin24 were blocked by German and Polish police in the investigation of phishing fraud funds being transferred via bitcoin24 and affiliated bank accounts. Not that bitcoin24 took any place in the phishing operations but more that the phishing scammers used bitcoin24 to transfer their "earnings" via bitcoin. At least that is what friend of mine told me (he have quite some amount in the EUR and BTC blocked in the bitcoin24).
More info to be found for example here: https://twitter.com/Bitcoin24com

If I am mistaken I would be glad for correction or more inside/insight info Smiley