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Author Topic: ZTEX USB-FPGA Modules 1.15x and 1.15y: 215 and 860 MH/s FPGA Boards  (Read 174183 times)
MXRider
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April 24, 2012, 04:29:25 PM
 #541

I'm not going to change the fans. I won't even use the 40mm fans. I'm just applying new heat sinks and using 120mm fan for 4 or 5 FPGAs. I can sketch a picture if that helps.
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April 24, 2012, 04:45:13 PM
 #542

I didn't even notice the 1.15y came out.  Gotta start subscribing to this.

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April 24, 2012, 05:45:39 PM
 #543

I'll take the the fan of the coolers off and use the sink as passive Smiley
My setup will be built into a IKEA Helmer
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April 24, 2012, 05:58:39 PM
 #544

No, just mine. And I can only do that because I have access to a manufacturing facility and components (and I am very motivated to build my own mining cluster).

I hate you so much Wink Cheesy The hash rates are very impressive. It looks like i lost a bit of speed by changing my fans. Great product.

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April 24, 2012, 09:38:05 PM
 #545

Antirack: The 10port USB hubs your using in your photo (the blue one). Have you had any problems with them at all from a reliability standpoint?

So far no problem. But they are cheap and low quality, I'd keep a few spares handy. They cost very little retail here in Hong Kong (I've seen them for $1.5 from a company in China). They do have a good form factor for a cluster in my opinion.

However, I have once or twice, when I touched the USB port on a running board (not the USB hub), had communication issues with that board. I am not sure if that's because of the hub or my electrical wiring (current flow) or just because of my prototypes. I am going to test this with an alternative USB hub now that you mention it.

Did you have any problems or just asking because you are looking for hubs?
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April 24, 2012, 10:47:59 PM
 #546

Quote
However, I have once or twice, when I touched the USB port on a running board (not the USB hub), had communication issues with that board. I am not sure if that's because of the hub or my electrical wiring (current flow) or just because of my prototypes. I am going to test this with an alternative USB hub now that you mention it.

Have these com errors to on a 7 port hub from trust (cheap brand) once in a while. But most times all 5 work flawless with it:)
(it could be the hub, my cables, my mac mini witch has a known problem with usb devices or some random event i cause while touching the stuff on my desk?)

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April 24, 2012, 11:03:02 PM
 #547

  • If I understand correctly from the original post the price goes down with volume cross-customers. Is there a page with the current applicable price or recent orders by date so that we can know at which price we will be buying ?
Re-reading the original post, I think I didn't understand correctly, it seems that the rebate apply customer by customer. Damn the 25-49 range unit price was looking good, but I probably won't purchase more than 10 in the foreseeable future :-(

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April 25, 2012, 06:45:21 AM
 #548

First cgminer release (2.3.4) with limited ztex support for 1.15x is out.

Primary developer/maintainer for cgminer and ckpool/ckproxy.
Pooled mine at kano.is, solo mine at solo.ckpool.org
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April 25, 2012, 04:38:35 PM
 #549

  • If I understand correctly from the original post the price goes down with volume cross-customers. Is there a page with the current applicable price or recent orders by date so that we can know at which price we will be buying ?

The volume discount is per customer.

Quote
  • Which miners do support the 1.15y today and which others are working on its support ?

BTCMiner: http://www.ztex.de/btcminer

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April 25, 2012, 05:31:44 PM
 #550

  • If I understand correctly from the original post the price goes down with volume cross-customers. Is there a page with the current applicable price or recent orders by date so that we can know at which price we will be buying ?

The volume discount is per customer.

Quote
  • Which miners do support the 1.15y today and which others are working on its support ?

BTCMiner: http://www.ztex.de/btcminer
Thanks for the reply, I've PM'ed Chefnet for a quad already.

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April 25, 2012, 07:10:51 PM
 #551

hallo,

bin bald besitzer eines sigle boards von ztex (1.15x)

jetzt habe ich mir folgende veränderungen überlegt.

tausch des kühler durch folgendes modell:
http://www.amazon.de/EKL-Alpenf%C3%B6hn-Chipsatz-K%C3%BChler-Kupfer/dp/B00169FM8E/ref=sr_1_2?ie=UTF8&qid=1335380596&sr=8-2

ist ein northbridge kühler aus kupfer

ziel ist es das board ohne lüfter zu betreiben.

sollte allerdings sich herausstellen, dass ein lüfter notwendig ist, würde ich einen langsam drehenden 12cm lüfter einsetzen.
was mich allerdings auf folgende überlegung bringt.

sollte das tachosignal des lüfters irgendwie ausgewertet werden, und die werte sich auf den 4x4 lüfter beziehen, dann könnte es sein, dass die niedrigeren werte des langsam drehenden lüfters zu problemen führen, oder ?

lese gern eure meinungen hierzu bzw. ztex wissen hierzu...

treuhand-Dienst gewünscht? - frag per PM an
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April 25, 2012, 07:18:41 PM
 #552

How many decibel standard fan on ztex, and how many fan of probabilly 120mm?
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April 25, 2012, 07:23:52 PM
 #553

This board cannot be powered via USB.

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April 25, 2012, 07:26:42 PM
 #554

ztex (JET Xilence Northbridge Cooler) -> 17 - 19 db(A) @ 4500rpm

BeQuiet SilentWings 2 -> 15,7 dBA @ 1500rpm

treuhand-Dienst gewünscht? - frag per PM an
BTC 174X17nR7vEQBQo4GXKRGMGaTmB49Gf1yT
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April 25, 2012, 08:01:11 PM
 #555

hallo,

bin bald besitzer eines sigle boards von ztex (1.15x)

jetzt habe ich mir folgende veränderungen überlegt.

tausch des kühler durch folgendes modell:
http://www.amazon.de/EKL-Alpenf%C3%B6hn-Chipsatz-K%C3%BChler-Kupfer/dp/B00169FM8E/ref=sr_1_2?ie=UTF8&qid=1335380596&sr=8-2

ist ein northbridge kühler aus kupfer

ziel ist es das board ohne lüfter zu betreiben.

sollte allerdings sich herausstellen, dass ein lüfter notwendig ist, würde ich einen langsam drehenden 12cm lüfter einsetzen.
was mich allerdings auf folgende überlegung bringt.

sollte das tachosignal des lüfters irgendwie ausgewertet werden, und die werte sich auf den 4x4 lüfter beziehen, dann könnte es sein, dass die niedrigeren werte des langsam drehenden lüfters zu problemen führen, oder ?

lese gern eure meinungen hierzu bzw. ztex wissen hierzu...

I would not use the board without a fan. You lose hashrate and generate much heat for nothing. The heatsink looks good. Take a 92mm silent wing (i'm a be quiet fanboi Cool) and blow the heatsink. 120mm is overkill for one board alone. Not sure how much power you can draw from the fan connector. But it should be no problem to solder or crimp the fan cables to the 12V line of the power supply. There is no RPM signal as far as i know. The fans run 100% all the time.

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April 25, 2012, 08:47:26 PM
 #556

ztex (JET Xilence Northbridge Cooler) -> 17 - 19 db(A) @ 4500rpm

BeQuiet SilentWings 2 -> 15,7 dBA @ 1500rpm

The difference is very low...
17-19 Db acceptable...
Power consumption?
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April 25, 2012, 09:17:24 PM
 #557

I'll post when my Board arrives Smiley

pazor
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April 25, 2012, 09:21:26 PM
 #558

jet xilince -> 0.72 W

silent wing 2 -> 2,4 W

treuhand-Dienst gewünscht? - frag per PM an
BTC 174X17nR7vEQBQo4GXKRGMGaTmB49Gf1yT
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April 26, 2012, 10:30:04 AM
 #559

This is SpartAA!



Cheesy

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April 26, 2012, 10:40:45 AM
 #560

This is SpartAA!
...
Great, first quads are shipped.

The name of board in the silkscreens looks wrong Smiley. May you take a photo of the backside please. What is the distance (diagonal) between the board mounting holes ?

Hpman
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