Topic: FPGA Rig Photos - page 8. (Read 43786 times)

A wild Spartan and its baby:

I got more details here:

https://bitcointalksearch.org/topic/cgminer-v385-on-broadcom-based-dd-wrt-openwrt-76685

It's an e3000 and you'll have to load DD-WRT yourself. It's not TOO difficult, but you do have to be careful.

Looking at processor and mem usage, I think it could probably handle the full 100 possible.

That's a nice and clean setup, which linksys router did you use? not familiar with any linksys that comes pre-loaded with dd-wrt only know the Buffalo models that do, how many units do you think the little cpu on that router can handle? I just might use something like this instead of the cheap computer I was setting up on my table for the singles I ordered.

Excellent looking setup. What kind of boards are those and what do you use to power and manage them?

I have it running in my 90 degree (est.) mining office and it doesn't seem to throttle.
Excellent job, BFL.

lol. I have no idea which is which either! I was told by BFL that the temps displayed can vary quite a bit. The most important thing is for the singles to not start flashing their front LED at the ambient temp while mining.

p_shep - thanks for the Rev3 pics!

gigavps - are the Rev 3 (assuming Rev4 is a typo) running any cooler?  Can't tell what is what on the mgpumon display...

No matter what people say about BFL and their lead times, revision 3 rocks! A miners dream. And some still dream about a GPU future...

Yeah, the sinks on under the top don't need individual fans, because of the stacked 80mm's. They are 12 port USB hubs with the switches and LEDs.
Yes, 19 x6500s. 18 Cognitive, and one belongs to someone who could not have it shipped to their country, and is mining for them.

Did I see that right, you removed some of the fans on the heat sinks but you kept the ones on the top?

Are these the USB hubs in pic 81.jpg with the blue LEDs? 11 port USB hubs?

19 x X6500?

Taken with a blackberry

http://dl.dropbox.com/u/9542654/btc/k/IMG_00000076.jpg
http://dl.dropbox.com/u/9542654/btc/k/IMG_00000081.jpg

* not sure of the syntax to resize an image so posts links instead *

The count is:

Rev1 == 4
Rev2 == 7
Rev3 == 4

The ones closets to the PC are Rev1s. They're taller than Rev2 because they use just the big heatsinks on the bottom.

So sexy. Nice job, BFL on the design.

11 x Rev.2 and (in the back) 4 x Rev. 3, if I count correctly?

Yeah, all I can say is "About 'ing time!".

Still have some more to come though...

Nice P_Shep..I'm glad to finally see someone using the revision 3 BFL Singles. That means they're finally cranking up production. I take it you went in early on in the waiting queue.

That's my design spec - currently building the infrastructure, waiting for 25 ZTEX 1.15x FPGAs.

Top (visible) board will be more or less square and have five columns with 5 boards each per column. Each column will have an 80mm fan pushing air in from the bottom and another at the top sucking air out. The main board will be mounted on a 45˚ incline to show off and also let physics help the fans out. Each set of 5 fans (blowers and suckers) will be powered from the main PSU on a separate 12V circuit with variable resistor, so if the cooling is more than adequate, I can reduce noise by turning down the fans.

Each column will be separated from its adjacent neighbour by an acrylic (perspex / whatever) panel. I had the same idea as nyana regarding drilling holes in the visible mounting board to run the USB and power cable through - I'll probably paint the base board copper or something. Underneath the base board, the USB hubs and power daisychains will be hidden with another board (false floor), so the only visible cabling will be one USB cable (for the entire farm), and five 2.1/5.5mm female sockets for FPGA power. The variable resistors for the fan circuits will probably be mounted on the side of the main board.

The board will then look like 5 'tunnels' with a fan at each end, separated by perspex. I haven't yet worked out the gasketing design yet (since the top panel will need to be easily removed for maintenance) but the top panel will be clear acrylic too. I'm hoping to equip each of the 25 FPGAs with blue Zalman flower northbridge coolers, as they look fantastic... but have only managed to buy 7 so far, and an order of 18 off Amazon got cancelled by the vendor after messing me around for 2 weeks.

This will be geek eye-candy, but also I've learned from GPU mining that having near-vertical airflow works well, so the board will be mounted at 45˚ and the space behind the board used to store the ATX PSU (PCIe cables will feed 12VDC to the FPGAs using custom cables, no butchering of the ATX PSU cables, and a plain Molex connector will suffice to feed the fans), and the Mac netbook powering the system (it's a Dell Mini 10v, running Snow Leopard and my build of the ZTEX SDK - the little netbook was chosen as it consumes low power, and running OS X allows me to easily view the screen from my other Macs).

Should be neat and tidy, hopefully should run with passive coolers and *hopefully* not too loud. Pics when I'm up and running - I've got all the bits I need apart from the FPGAs and 18 of the Zalman heatsinks, and am building the assembly now. Hopefully, when the FPGAs arrive, all I'll need to do is screw them into the mounting posts already built into the top board, attach USB and power cables, drop the perspex lid on to create the 'wind tunnel' cooling, program the FPGAs and kick off the miner.

If it works well without any snags then I'll duplicate it when I get funds for the next load. I reckon a 600W PSU ought to be more than enough and should deliver clean enough power so the FPGA power conversion stages don't have to do much work... I've got Cooler Master PSUs, my only concern is not using anything other than the 12V rail (which I'll start another thread about)...

Darn. I've been saying I'm going to order mine for a week now and just haven't pulled the trigger yet. You're making me jealous. It's time!

Currently mining away at 1651MH/s using 155W (2xBFL, Router, USB hub) at the wall.