Just bought an SC25 with bitcoin. As for the chick, I would say that getting the bigger one would be a much better value :-)

YMMV.

C

Yep. The other thought is to use the existing radiator and just mount it outside in the shade. I might need a larger pump to move the water longer distances, maybe.

Another thought would be to stick an AC unit in the water with it, then pull the heat off that way. Or something even weirder.

C

Which means my proper solution would be to re-rig the water cooling units with bigger pumps and pump water straight from the rain barrel. Which means heat exchanger as that water is of questionable quality. Which means WELDING TIME!

It's never a dull moment at Danger labs.

C

Hm. I wonder if I can immerse it in a tank of mineral oil, then put *that* into a 50 gallon rain barrel. Would the surface area of the glass be enough to allow the heat to radiate into the rain barrel's thermal mass....

That's a project for spring. :-)

C

Freon? Wow.

ceecee apparently has chips in europe..

Oh ho, they're watercooling the FETs from the top? This is going to be interesting-fun to watch.

C

Indeed, that is a problem. I'd offer some bitcoin for it for parts, but it would be a small amount. How about 40% of the potential mining ability of it 2 weeks from now as measured by mining.thegenesisblock.com? :-)

The problem is a blown FTDI chip caused by your power supply going to ground and putting 50% of your electricity voltage across the ground plane and into your computer. The power supply is bad and should not be plugged into your other jalapeno. It should be flagged and trashed.

The jally will either need to be RMAed or you will have to find someone who can replace the chip. I have done it once, it is a screaming pain for a medium level rework person like myself, but should be simpler for somoene who reworks X-Boxes and PS3's for a living.

Sorry to be the bearer of bad news, but this seems to happen in the EU. Long term solution is to get a locally sourced power supply that is of a quality to handle your type of power needs and providers.

C

Update: Wondering over. Can do 32gh. With 8 chips you need a water cooling block and a big power supply, but it is fun!

C

I tell you, the pizzaforcoins thing *worked*. The people at the local PapaJohns were slightly confused about the concept, but it worked.

My 12 year old son was amazed. And I realized that he will grow up thinking something like this as normal. To me it's beyond revolutionary: I paid for a pizza from a vendor I had no relationship with using a currency neither issued by, backed by, or tainted in any way by a government of any kind.

Wow.

Jally doctor to the rescue :-)

1) Where are you located? This makes a difference.
2) What happens when you plug it in? Which lights come on. There should be:

a power LED by the power jack.
Two little Leds in between the power jack and the USB
A LED on the front.

What should happen is power led comes on, front LED flashes, then two LEDs in middle light and front stays solid.

C

There is an error in this. We all chose to buy units with either dollars or bitcoins. If dollars, then there is no ROI till we sell coins. If bitcoins, then you either convert to dollars at either end or stay in bitcoins at either end.

Technically my ROI then is zilch, as I have not converted my bitcoins to dollars. I have however bought a Chili, chips, and a really good Papa John's pizza which is far more than the 169 I have invested in dollars. So my ROI is positive.

Yeah, the power supplies sucked. However if you still have them and want to sell them drop me a PM. I could use a few cores.

My single purchased in Jan, delivered in August made back it's money in dollars even at 100/btc.

Since then I have been adding chips to them, paying for those in bitcoin, and have made back my investments with time to spare. When you couple in the overall costs, I expect to make back 300-400% of my investment. Taking them to 32gh is truly the way to go.

The thread is at:

https://bitcointalk.org/index.php?topic=336782.msg4506613#msg4506613

Jalapenos were without a doubt the best bitcoin investment I have seen. :-) And if you have one, have a good power supply, and want to go to 16gh I can do it for labor costs in bitcoin, you can get the chips from Ebay.

C

That's ok. I looked at it, and it's three power cords, each cord going into one of the 12 volt lines on a PCIx connection. The issue is simply that each of my turbo jallies pulls 4 times as much current as a normal one. So instead of feeding 3 jallies, it was feeding 12 of them. :-)

On the positive side, the barrel connectors can handle the current load, so I don't have to replace those. But it is a pretty big bit of power draw.

C

About a week. I like to run them before doing anything, and after to ensure it's good.

Note: I don't want to advertise on this thread, pm me or post to this one.

https://bitcointalk.org/index.php?topic=336782.0;topicseen

Will do. I think I'm going to try a corsair 100i for my third jally when I take it to water cooling. The Sedion is good, but not quite as good as the larger radiator on the h100. And the h100i is supposed to have more surface area, which is *all* that matters here.

C

You could also upgrade that jally to 16gh for chips and .1btc of labor costs to me.... That's something to buy.

I work for bitcoins.

C

On a side note, I think I see the issues with the singles; BFL really screwed with the firmware to try and keep them from blowing up. However with the later model heat sinks this is not so much a problem, however you can't just flash them. You need to also add some heat sinks and ensure the airflow is right.

I think I have it down pat here; is anyone interested in the details and such once I get it done? So far I have a 23gh single running at 28+ with no heat problems, but a number of temporary sinks.

C