ZTEX USB-FPGA Modules 1.15x and 1.15y: 215 and 860 MH/s FPGA Boards - page 28.

BR0KK

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Quote

It the FPGA does not shortcut 3.3V or one of the commonly used I/O the other FPGA's can still be used. BTCMiner will support handling of failed FPGA's.

Also notice that there is a warranty.

Nice to know

I meant if i send it in for replacement i have to take down the whole miner and loose its MH/s.

ztex

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ZTEX FPGA Boards

Quote from: marked on April 14, 2012, 05:58:11 AM

http://www.ztex.de/usb-fpga-1/usb-fpga-1.15y.e.html

Quad board, no pricing in shop as yet. Anymore info on timescales?

The new Quad FPGA Board should become available in about one week.

A new BTCMiner version (with Quad support and a lot of other new features) will be released in the next days. Typical performance should be 850 MH/s. (The prototype achieves 870 MH/s.)

The only difference between the bitstreams for Single FPGA Boards and Quad FPGA Boards are some changes in the glue logic. Therefore performance and power per FPGA are the same.

Prices are:
1..4 units: 999 EUR (1355 USD)
5..9 units: 899 EUR (1220 USD)
10..24 units: 809 EUR (1100 USD)
25..49 units: 719 EUR (975 USD)
50+ units: 699 EUR (950 USD)

I will add more info to the initial message of the thread in about one week. Meanwhile, please visit http://www.ztex.de/usb-fpga-1/usb-fpga-1.15y.e.html for details.

tnkflx

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Quote from: ztex on April 16, 2012, 03:02:49 AM

Quote from: BR0KK on April 15, 2012, 03:58:12 PM

What if one FPGA Fails... No one knows about stability with theses things while mining. Than u end up losing 800MH/s for the time u have to replace it .....

It the FPGA does not shortcut 3.3V or one of the commonly used I/O the other FPGA's can still be used. BTCMiner will support handling of failed FPGA's.

Also notice that there is a warranty.

Any word about pricing?

ztex

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ZTEX FPGA Boards

Quote from: BR0KK on April 15, 2012, 03:58:12 PM

What if one FPGA Fails... No one knows about stability with theses things while mining. Than u end up losing 800MH/s for the time u have to replace it .....

It the FPGA does not shortcut 3.3V or one of the commonly used I/O the other FPGA's can still be used. BTCMiner will support handling of failed FPGA's.

Also notice that there is a warranty.

BR0KK

hero member

Activity: 784

Merit: 500

What if one FPGA Fails... No one knows about stability with theses things while mining. Than u end up losing 800MH/s for the time u have to replace it .....

I will buy one to try it out but i think i stick to single boards for now

If this thing is real theres no chance for BFL to get a stand in countries (like germany) where the miner has to pay attention to the electricity costs ?

Turbor

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BitMinter

Quote from: Hpman on April 14, 2012, 02:39:45 PM

There is also the CPLD jtag pinheader between the FPGAs. But if there wasn't anything between I'm not sure if the four BGAs are plan enough for a monolith heatsink. Maybe it is possible to handle four single heatsinks with one big fan.

Hpman

A 120mm fan should work fine. The stock fans blow way less than 10 CFM each.

Hpman

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Quote from: aTg on April 14, 2012, 01:42:33 PM

Quote from: marked on April 14, 2012, 05:58:11 AM

http://www.ztex.de/usb-fpga-1/usb-fpga-1.15y.e.html

Awesome, that means that now one computer can handle about 84GH / s
Only I see a possible inconvenient, if you want to install a heatsink that covers the 4 FPGAs is hindering capacitors between 1.2 and 3.4 FPGA.

There is also the CPLD jtag pinheader between the FPGAs. But if there wasn't anything between I'm not sure if the four BGAs are plan enough for a monolith heatsink. Maybe it is possible to handle four single heatsinks with one big fan.

Hpman

catfish

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@RUPY

Please can you post a picture of how you've mounted the Zalman flower heatsinks to your 1.15x boards please - specifically how you've connected the fiddly pin-post connectors to the heatsink?

I'm in the process of sending Stefan a wad of money for 25 boards and I have 25 Zalman heatsinks to assemble. And they're tricky and fiddly.

I *really* don't want to assemble 25 of these damn things and then find I've got the 'hooks' pointing the wrong way!!!!

Cheesy

I'd *really* appreciate it Cheesy

aTg

legendary

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Quote from: marked on April 14, 2012, 05:58:11 AM

http://www.ztex.de/usb-fpga-1/usb-fpga-1.15y.e.html

Awesome, that means that now one computer can handle about 84GH / s
Only I see a possible inconvenient, if you want to install a heatsink that covers the 4 FPGAs is hindering capacitors between 1.2 and 3.4 FPGA.

Turbor

legendary

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BitMinter

Very nice. If this is sold for a reasonable price then this is a big step forward.

abbeytim

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i asume if that quad has four of the same chips as the 1.15x it will get 840mh/s and will cost 3-4 as much so for me a bfl single is a better deal for mh/$ although these are probably readly available unlike the bfl singles 4-6+ wait time

marked

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http://www.ztex.de/usb-fpga-1/usb-fpga-1.15y.e.html

Quad board, no pricing in shop as yet. Anymore info on timescales?

marked

tnkflx

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Activity: 349

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Quote from: Shadow383 on April 05, 2012, 10:02:42 PM

Would anyone be interested in a group bulk order? I want to pick up a couple of these to test, but I don't see them ever being profitable @ 309 EUR.

Yes

Shadow383

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Would anyone be interested in a group bulk order? I want to pick up a couple of these to test, but I don't see them ever being profitable @ 309 EUR.

camolist

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ordered two last tuesday and received them today

though it's still early i can report that they appear to be working quite well so far

not hard at all for a first time miner to get setup and running

(just a temporary 12volt source waiting on a 1200 watt CMPSU-1200AX to power these boards and some other brands that are also on the way)

http://i39.tinypic.com/294p35y.jpg

aTg

legendary

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Not that I mind, it's just that I found was not from the beginning and that continued use appeared. It was simply to confirm that there is a serious problem, thanks.

ztex

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ZTEX FPGA Boards

Quote from: aTg on March 30, 2012, 02:59:15 PM

That are solder flux remnants. If you find it ugly you can clean it.

Turbor

legendary

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BitMinter

Try some alcohol or acetone.

TheSeven

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FPGA Mining LLC

Quote from: aTg on March 30, 2012, 02:59:15 PM

Hello, I noticed a kind of anomaly in the circuit after 30 days of continuous use with proper refrigeration and good performance of the circuit.
The power supply is a 500W ATX supply with 35W load divided between the FPGA and an atom motherboard.

Seems to ooze a kind of resin, at the time that I've detected no heat in that area and the resin is hardened, the power connector makes good contact and 11.89 volts supplied stably.

Attached photos:
http://img824.imageshack.us/img824/1447/300320121111.jpg

http://img32.imageshack.us/img32/3460/300320121116.jpg

Looks like the usual flux residue?

aTg

legendary

Activity: 1358

Merit: 1000

Hello, I noticed a kind of anomaly in the circuit after 30 days of continuous use with proper refrigeration and good performance of the circuit.
The power supply is a 500W ATX supply with 35W load divided between the FPGA and an atom motherboard.

Seems to ooze a kind of resin, at the time that I've detected no heat in that area and the resin is hardened, the power connector makes good contact and 11.89 volts supplied stably.

Attached photos:

Topic: ZTEX USB-FPGA Modules 1.15x and 1.15y: 215 and 860 MH/s FPGA Boards - page 28. (Read 182443 times)