Topic: ZTEX USB-FPGA Modules 1.15x and 1.15y: 215 and 860 MH/s FPGA Boards - page 51. (Read 182443 times)

Would you consider a discount to those that wanted to put it together themselves?

You could offer a few options:
        1)Just the Board
        2)Just the Board + components
        3)Completed Board (already offered)

Thanks

Hardware is for profit. Software is both, Open Source and for making profit with hardware.

Ztex. Very nice work. Thank you for sharing.

I'm kind of shocked on the "warm reception" you received.

There are many enthusiasts out there that I'm sure would buy one of your boards.
I'm one of them.

Just curious, is your design open source or is this a for profit venture?
Fine if it is, but just wondering.

Indeed, you messed up the volume prices.  If you search for a board assembler and build a 50 GH/s rig it pays off in about 2 years if the $/H rate stays approximately constant (e.g. due to the fact the GPU miners have switch off their rigs)

You also did not consider the energy costs: FPGA miners are still profitable in many years.

this is assuming that both the difficulty and exchange rate stay the same for those 4.2 years.

edit:fixed typos

so...at current btc prices of around $2.5 and current difficulty 190Mhs would get you around .12 BTC a day meaning it would only take 4.2 years to pay this off? lol or did i mess up a decimal place somewhere?

ZTEX USB-FPGA Modules 1.15x and 1.15y: 215 MH/s and 860 MH/s FPGA Board

ZTEX USB-FPGA Modules 1.15x and 1.15y are a FPGA Board which are designed for bitcoin mining and similar applications. They have an USB interface and on-board voltage regulators. Low cost clusters can be build using standard components (USB hubs, USB cables).

USB-FPGA Modules 1.15x have a single Xilinx XC6SLX150 FPGA and USB-FPGA Modules 1.15y contain four FPGA's of the same type.

On both boards the FPGA variant in CSG484 package with small thermal conductivity (2.2 K/W) is used. For comparison, the FGG484 package used on most other FPGA board is 3.7 K/W.

Detailed descriptions can be found on the homepage of USB-FPGA Modules 1.15x  and USB-FPGA Modules 1.15y

With the current version of the BTCMiner -- the Open Source Bitcoin Miner for FPGA Boards -- these FPGA Boards achieve an average hashrate of about 215 MH/s per FPGA. The actual hash rate varies from batch to batch and from board to board. The following table contains performance measurements from the particular batches

FPGA Board	Delivery date	Speed grade	Frequncies	Average hash rate per FPGA	Notes
1.15x	2011	-3C	212 MHz to 220 MHz	215MH/s	Estimation based on measurements with older Bitstreams
1.15x	01/2012	-N3C	200 MHz to 212 MHz	205MH/s	Estimation based on measurements with older Bitstreams
1.15x	02-03/2012	-N3C	208 MHz to 224 MHz (!)	214MH/s	Long time measurement with 20 FPGA  boards
1.15x	03-06/2012	-N3C	208 MHz to 220 MHz	214MH/s	Long time measurement with 15 FPGA  boards
1.15y	04-05/2012	-N3C	196 MHz to 240 MHz (!!)	212MH/s	Long time measurement with 6 FPGA  boards (24 FPGA's), batch contains FPGA from many different lots
1.15y	05-06/2012	-N3C	212 MHz to 240 MHz (!!)	221MH/s	Long time measurement with 3 FPGA  boards (12 FPGA's)
1.15y	06-07/2012	-N3C	216 MHz to 240 MHz (!!)	227MH/s	Long time measurement with 8 FPGA  boards (32 FPGA's)
1.15y	08/2012	-N3C	208 MHz to 228 MHz	218MH/s	Long time measurement with 10 FPGA  boards (40 FPGA's)
1.15x	08-11/2012	-N3C	220 MHz to 228 MHz	222MH/s	Long time measurement with 5 FPGA  boards
1.15y	09/2012	-N3C	212 MHz to 228 MHz	221MH/s	Long time measurement with 7 FPGA  boards (28 FPGA's)
1.15y	09-10/2012	-N3C	216 MHz to 232 MHz	222MH/s	Rev. 2 boards, long time measurement with 5 FPGA  boards (20 FPGA's)
1.15y	10/2012-03/2013	-N3C	216 MHz to 236 MHz	227MH/s	Rev. 2 boards, long time measurement with 5 FPGA  boards (20 FPGA's)
1.15x	12/2012-03/2013	-3C	224 MHz to 232 MHz	227MH/s	Long time measurement with 3 FPGA  boards
1.15y	04/2013	-N3C	220 MHz to 232 MHz	224MH/s	Rev. 2 boards, long time measurement with 5 FPGA  boards (20 FPGA's)

If the hash rate is less than stated above the cooling / heat sink installation should be revised.

Power dissipation (without the fan) at 216MHz is typically 9.7W per FPGA. More details can be found on the BTCMiner homepage.

Ordering
Sample quantities of USB-FPGA Modules 1.15y can be ordered in the Shop. Further order details can be found on the  order info page for USB-FPGA Modules 1.15y and USB-FPGA Modules 1.15x

A license production program is offered for USB-FPGA Modules 1.15y. Details can be found on Order info page.

Suggestions for power supply
Suggestions for cluster power supplies can be found on the ZTEX Wiki

Cooling
USB-FPGA-Modules 1.15x and 1.15y are delivered with a large 40x40x35mm heat sinks with fan which make cooling easy. In order to ensure optimal heat transfer between the FPGA and the heat sink thermal grease and the push pins should be used (i.e. not the adhesive pad which is included in the cooler kit).

Due to its size the heat sink only requires a little bit airflow. In a cluster installation the 40mm fans of the heat sink can be replaced by a few large case fans. In this case the board should be densely stacked in order to optimize the airflow. (The air should be forced to flow through the heat sinks, not above or around them.)

Images


USB-FPGA Module 1.15y with coolers.


USB-FPGA Module 1.15x with cooler.

Page history
UPDATE Nov 03 2011: section "Suggestions for power supply" added

UPDATE Dec 02 2011: USD prices updated

UPDATE Dec 14 2011: Prices updated, new BTCMiner version with improved performance.

UPDATE Feb 09 2012:

• Prices updated
• Performance data updated to the lastest BTCMiner release
• Cluster power supply  suggestions moved to http://wiki.ztex.de/doku.php?id=en:ztex_boards:ztex_fpga_boards:cluster_power_supplies
• Cooling section added

UPDATE Feb 21 2012: Performance data for the new batch added

UPDATE Apr 24 2012: USB-FPGA Modules 1.15y added

UPDATE Jun 08 2012: Performance data of the last batch and BTC / MTGox USD code payment methods added.

UPDATE Jun 15 2012: USD prices updated

UPDATE Jul 05 2012: Performance data of the last batch added. Typical hash rate updated to 215 MHs per XC6SLX150.

UPDATE Jul 16 2012: USD prices updated

UPDATE Aug 09 2012: Performance data of the last batch added.

UPDATE Aug 27 2012: Performance data of the last USB-FPGA Module 1.15x batch added, price for this FPGA board updated

UPDATE Sep 07 2012: Performance data of the last USB-FPGA Module 1.15y batch added

UPDATE Oct 17 2012:

• Prices updated
• Performance data updated
• New revision of USB-FPGA Modules 1.15y, see https://bitcointalksearch.org/topic/m.1278583
• 10% discount on USB-FPGA Modules 1.15y until Oct 26, see https://bitcointalksearch.org/topic/m.1278583 for the prices

UPDATE Nov 26 2012: Prices updated

UPDATE Dec 18 2012: Performance data of the last USB-FPGA Module 1.15x batch added

UPDATE Apr 22 2013: Performance data and order information updated

UPDATE Jun 18 2013: Order information updated