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Author Topic: ZTEX USB-FPGA Modules 1.15x and 1.15y: 215 and 860 MH/s FPGA Boards  (Read 174104 times)
TheSeven
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March 22, 2012, 10:44:06 PM
 #441

Would love to test this.... But:

1. How Safe is it ? (i don't want my boards to blow up .....)
2. Is there a "how to" aviable (for a windows guy that moved to MAc OSX) Cheesy

1. The overclocking code tries to exactly match what ZTEX BTCMiner is doing. And I see no other way how it could be blown up, if at all.

2. Here are some general instructions:
  • Check out the testing branch (git clone git://github.com/TheSeven/Modular-Python-Bitcoin-Miner.git -b testing)
  • Run "python run-mpbm.py"
  • Open http://localhost:8832
  • Log in with user name "admin", password "mpbm"
  • Configure the WebUI frontend to set your own password
  • Add your own work sources to the "user work sources" group
  • Right click on the created work sources and assign them to the "Bitcoin" blockchain (or whichever blockchain they belong to), to enable long poll aggregation
  • When you're done, hit "save configuration" (will be done during a clean shutdown anyway, but it can't hurt to do it manually after lots of changes to reduce the risk of data loss)

The boards should be detected automatically. I haven't tested this on Mac OS at all though, so you might hit some OS dependent issues. If that happens, just let me know (ideally on IRC, so we can try to figure things out interactively).

If you leave the demo (and donation) work sources enabled (which I would of course appreciate), and don't have a hashrate of multiple gigahashes per second, the work distribution might not work correctly and allocate more than 1% of your hashrate to those demo/donation work sources. To fix that, just change the number of long poll connections on the BTCMP (demo) work source to zero.

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March 22, 2012, 11:24:04 PM
 #442

Would love to test this.... But:

1. How Safe is it ? (i don't want my boards to blow up .....)
2. Is there a "how to" aviable (for a windows guy that moved to MAc OSX) Cheesy

1. The overclocking code tries to exactly match what ZTEX BTCMiner is doing. And I see no other way how it could be blown up, if at all.

2. Here are some general instructions:
  • Check out the testing branch (git clone git://github.com/TheSeven/Modular-Python-Bitcoin-Miner.git -b testing)
  • Run "python run-mpbm.py"
  • Open http://localhost:8832
  • Log in with user name "admin", password "mpbm"
  • Configure the WebUI frontend to set your own password
  • Add your own work sources to the "user work sources" group
  • Right click on the created work sources and assign them to the "Bitcoin" blockchain (or whichever blockchain they belong to), to enable long poll aggregation
  • When you're done, hit "save configuration" (will be done during a clean shutdown anyway, but it can't hurt to do it manually after lots of changes to reduce the risk of data loss)

The boards should be detected automatically. I haven't tested this on Mac OS at all though, so you might hit some OS dependent issues. If that happens, just let me know (ideally on IRC, so we can try to figure things out interactively).

If you leave the demo (and donation) work sources enabled (which I would of course appreciate), and don't have a hashrate of multiple gigahashes per second, the work distribution might not work correctly and allocate more than 1% of your hashrate to those demo/donation work sources. To fix that, just change the number of long poll connections on the BTCMP (demo) work source to zero.

I have tested this according to your instructions and it worked without problems in my 3 Ztex (+5 Icarus) setup). It recognized the Ztex boards automatically, while I had to add my Icarus COM ports manually (as expected I guess). I only had 5 minutes so I didn't set up my own blockchains (pools), but everything worked as expected.

Once I have more time I will test a bit more and give you feedback in your thread, I have only been using the old version of MPBM so far. One thing I noticed, using Firefox the display on the top left (menu) was messed up. With Chrome it worked fine. Could be one of my Firefox add-ons though.
TheSeven
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March 23, 2012, 01:55:14 AM
 #443

I have tested this according to your instructions and it worked without problems in my 3 Ztex (+5 Icarus) setup). It recognized the Ztex boards automatically, while I had to add my Icarus COM ports manually (as expected I guess). I only had 5 minutes so I didn't set up my own blockchains (pools), but everything worked as expected.

Once I have more time I will test a bit more and give you feedback in your thread, I have only been using the old version of MPBM so far. One thing I noticed, using Firefox the display on the top left (menu) was messed up. With Chrome it worked fine. Could be one of my Firefox add-ons though.


Yes, I haven't found a way to autodetect Icarus boards yet, their protocol doesn't really make that easy. It's kinda fire and forget.

What do you mean with "old version"? The old version (master branch) doesn't have ztex board support (except for nelisky's branch, but I'm not sure if that one even works yet, haven't tested it). The web user interface is the new (testing) branch.

The firefox issues are known, seems like it has a problem with sizing of scrollable divs. Need to look into that when I find time to do that.

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March 28, 2012, 12:47:40 PM
 #444

@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

...so I give in to the rhythm, the click click clack
I'm too wasted to fight back...


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m3sSh3aD
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March 28, 2012, 02:22:52 PM
 #445

@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

Wish i had a wod of cash for 25 boards Sad

Good luck with that venture. I hope to some day, Maybe next gen FPGA's Smiley
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March 28, 2012, 02:53:16 PM
 #446

Smiley They go with the hook through the board and the spring on the metal wing end. Also you have to turn one of the wings so it doesn't poke the big black square component (not because it's hot, but because you can't properly center the heatsink otherwise), but you'll notice; it only goes one way.

Also I used pliers to gently narrow the hook a bit so I didn't have to force the hooks through with too much pressure.

I would use some quality grease though, not the zalman one.

How are you going to cool these, passively?

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March 28, 2012, 07:20:44 PM
 #447

@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

Good luck catfish.  Stefan's latest batch is fast.  ~210 average, the fastest runs at 228Mhz (stock cooler).  I hope you can get them up and running soon.
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March 30, 2012, 01:58:24 PM
 #448

Also catfish: please post the rig in FPGA Photo thread later, can't wait to see this thing! Wink

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March 30, 2012, 07:59:15 PM
 #449

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:


TheSeven
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March 30, 2012, 08:06:38 PM
 #450

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?

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March 31, 2012, 02:16:12 PM
 #451

Try some alcohol or acetone.

ztex
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April 02, 2012, 07:36:04 AM
 #452



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

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April 02, 2012, 08:46:28 AM
 #453

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.
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April 03, 2012, 02:53:43 AM
 #454

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

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April 03, 2012, 03:29:45 PM
 #455

@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

Good luck catfish.  Stefan's latest batch is fast.  ~210 average, the fastest runs at 228Mhz (stock cooler).  I hope you can get them up and running soon.
Well I just got Test Board 1 modified to test my 'tunnel' theory - enclosed it with a cardboard tube and stuck an 80mm fan at one end blowing across the board - and it spent a *little* more time at 212 MHz but settled down at a safe 208 MHz. Remember that this is a 1.15d board, not the 1.15x - so the heatsink is a tiny 25mm thing stuck on with thermal tape, which we all know is rubbish.

And then I had a total systems failure - my Open Directory got corrupted. This contains all my email and my entire company login structure (it's only small, but it's critical) so I've been fighting that since.

@ztex - if you've emailed me saying my boards are ready, and the email bounced - I *haven't* disappeared, I *still* want the boards and I *do* have the money. Please don't cancel the order... bad timing or what??? If there's still a wait for my boards then no problem. Will hopefully be back up and running by the end of today - been working 24 hours rebuilding the server (OD backups aren't the one-click restore you'd hope for, and restoring using Apple's Time Machine on its own server is dangerous as hell with Kerberos).

All my data is safe, as are all user home folders and metadata. Figured it'd be safer to rebuild the directory *properly* this time, keeping the UIDs the same, and importing the existing folders for each user. Wouldn't want to do this on an enterprise level though... having 11 users is bad enough...

...so I give in to the rhythm, the click click clack
I'm too wasted to fight back...


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April 06, 2012, 03:02:42 AM
 #456

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.
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April 06, 2012, 06:41:11 AM
 #457

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 Smiley

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April 08, 2012, 04:31:38 PM
 #458

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.
Individual 'group buys' make each board a damn sight cheaper than 309 EUR. I'm not paying that much for each of mine.

The first 'test' board *was* expensive though... then again it's a 1.15d with an extra Experimental Board, memory and microSD slot.

If you're intending on buying only one board from ZTEX and leaving it at that, I can see the value in a group bulk buy, because the 'single' prices aren't beer money. However, if you're going to invest in FPGAs at *all*, I can't see much point in only buying one or two - with the current bitstream you're only going to get the hashpower of a couple of shonky old 5770 cards, which can be put to more uses in a computer (you'll need *some* sort of computer to manage the FPGAs, after all).

However, if you're already invested heavily in GPU miners and power / heat management isn't free, you're going to either be quitting the mining game or running like hell to switch to FPGAs. And if you choose ZTEX (a sensible decision in Europe) then you'll need a fair number of boards to match a small dedicated GPU mining farm like mine... at which point you get the substantial ZTEX volume discounts.


What I'm trying to say is that there *already* is a 'bulk order' scheme. Having one individual pool up cash to make a large order (holding up the queue *completely* for bigger miners), only to then sell them on to others at a different rate than Stefan charges, could put Stefan under pressure to change his pricing (I don't want the prices going up, thanks). But more importantly, if a 'group bulk purchase' ends up being hundreds of boards, then it effectively prevents anyone *outside* the group from receiving any boards before they are likely to run the risk of taking FAR too long to pay off for some miners' risk horizons.

Put this way - if a 'group bulk order' was going ahead, and it was going to be hundreds of boards, taking Stefan's entire production for the next 3 months or so... then I'd want to put *my* volume purchase in along with the group, so I'm not shut out until the 'group' buy is fulfilled. This could take a long time, after all - and it's not great business for Stefan either...

...so I give in to the rhythm, the click click clack
I'm too wasted to fight back...


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April 14, 2012, 10:58:11 AM
 #459


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?



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April 14, 2012, 11:05:32 AM
 #460

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
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