Another important pro for Icarus is that it is open source.

The hours is at max rated temp. Rule of thumb is that for every 10 °C lower it doubles the life expectancy.

I used pliers to convert the plug packs to AUS style pins, no adapter required.

Have to agree that the meter must be giving bad readings as I measure the boards as less than 20w

Had a dispute with something I purchased with paypal but they could not help because it was over 90 days?? Not sure of the exact cut off date as it was a few years ago. Long story short they were the local agent and after I started sending lots of emails to every office they had worldwide it got sorted but paypal would not help due to the cut off date.

For those thinking they have paypal protection I would suggest you check their policy on time limits.

interested

I believe my statement was accurate within the context of the discussion. I can totally relate to pulling the PC off hashing for some battlefield 4 but cannot imagine uploading a new bit-stream on to the fpga so it can double as house alarm etc (plus the platform would be overkill).

I understand where you are coming from though.

 

-The batch 2 boards are doing 380mh and the new alpha bitstream looks to have increased that to 400mh.
-Life of the equipment would be in favor of Icarus if only due to the number of components.
-Icarus has no warranty at all.
-Icarus would have resale value to BTC miners not the larger gaming market.
-if BTC stays around $6 Icarus earns about 30% more BTC if you pay $0.11Kwh and live in a cool climate.
-Icarus has no dual use, you cannot use for games.
-You cannot just add another card. Icarus needs no supporting equipment so adding a new board is no prob
-in comparison Icarus makes no noise.
-If you live in a warm climate $930 saving would be used for installing and running a cooling solution.

You are correct CornedBeefHash I screwed up my calcs big time, still trying to work out where

1 BTC GPU $2.11 @800w not including the 250w pedestal fan.
1 BTC FPGA 16c @64w
Mind you I am using a cheap $19 power meter too.

It is going to be nearly double that when they install the 'smart meter' the gov said would save us all money....
Unless of course I only run for 8h out of 24h period then it will be half........
 
 

I think the pool needs a G.Luk upgrade.

may i suggest a rabbit foot usb?

I have both cards and icarus. Currently the for me the electricity to generate 1 btc is about 29c for GPU and 1.44c for FPGA and with BTC being around $6 it is not that important to me atm. I think the big advantage is ease of expandability:

This was my thinking when i considered the two, for me to add another 1gh for GPU or FPGA:-

FPGA: I just plug in 3 more units, 10 minutes work. Increase in heat/power 60w so not currently an issue. I will have to buy a new $15 usb hub when I add another 2gh, if I add another 20gh I will have to look at increasing cooling.

GPU: going to need another rig, MB, PSU, case, mem, HDD or usb, OS etc. Increase in heat/power 800w. I cannot fit a new rig in the area i am using, plus the noise will be too much. Moving both rigs to new area I will also have to increase external cooling as my current arrangement is not enough, a small window mount AC unit should do....another 500w. You get the picture...

If i keep on expanding to 10gh for GPU I will need to increase mains supply from the switch board, from the street should be ok till around 50gh. In comparison with FPGA I will not even have to look at this until i hit 100gh+


  

all fixed, my eyes thank you so much

also you don't know how relived I am to know that it is a coding irregularity rather than a deliberate color choice, haha 

Very nice.....thank you TheSeven

Just need to change the blue font so i can read it, something to do over the weekend, lol

Could it be due to FPGA workers?

I am running 1.1gh at about 1-2% stales on fpga. This stale rate is mainly due to no miner software support yet for LP.
On the up side I am doing it for 47w power usage

Grats on the oil cooler


My practical experience is on the multimillion dollar stuff and on the operational/maintenance side rather than design but the basic principles still apply. 

Your basic 'rule of thumb' is that you will achieve a 6 Deg C split between supply and return providing you are within your systems heat rejection capabilities. This temp split is a good indicator on the amount of heat rejection your system is doing.

For example:
If you are at 6 deg split and temp is still rising you have exceeded your capacity.
If you are at 6 and temp is falling you are at within your capacity.
If you are less than 6 and temp is stable the split temp you are at is a good indicator of your overall capacity at that heat load.
If you are less than 6 and temp is rising something is wrong.

Maybe stick nails into the foam to weigh it down?
Have you tried plumbers glue?

I was not concerned about the oil directly in fact due to the high flash point of oil I would say it is likely to put out a fire.

Consider this, you have intermediate fuels in close proximity to the card, PU foam, plastic wire insulation, plastic moldings etc all nicely heated up by the card. If you lose the oil flow all those materials are now lightly coated in oil and with the splash method you might even have created an air-fuel mixture. Your ignition source would be the card, it has a lot of current running through it, a fatigued solder joint, poor connector or faulty component and there is your initial flame. Normally in an air cooled pc you would only expect get a brown spot on the PCB or a blackened connector, maybe not even that much with the oil running, without the oil running the risk of fire is considerably higher.


Anyhow good luck with the project and don't forget to post pictures when you get it up and running

The tray only has to be big enough to accommodate the cards and a channel big enough to deliver oil to the containers and overflow. Even then you can eliminate most of the surface area by raising what parts you don't need above the oil level.
                                                               
The pump control is easy just put in a bypass, place a valved connection between inlet and outlet, adjust valve to regulate flow.

I don't have any probs making fiberglass waterproof, try thinning the resin with acetone.

With this design I would be wary of the fire hazard, it would be bad enough with fiberglass I wouldn't want to go near PU foam. You will need a fail-safe shutoff switch in case the oil pump stops, you can make a relativity bullet proof one out of a mirco switch and a syringe.

DnT has pretty much nailed it with what I was doing. Cutting and welding metal for me is easier to do than any other material such as wood and even cardboard for that mater. It is perfect for heat exchange, in fact most of the difficulty working with it is due to heat exchange. But as you don't have the skills or equipment.......being such a small simple job it might be worth getting the local workshop to do it but that would prob exceed your budget.


Anyhow back to the idea you and DnT were working on. How are you with fiberglass? I don't like it much because it is messy and makes me itch but it is probably ideal for individual covers and it is cheap. You can make a mold out of a block of wood and waxed paper.

Expanding or simplifying the idea DnT suggested you could make the containers and fiberglass them into a tray made from ply wood. Have small holes in the base of each container and flood the tray with oil. The oil will fill the containers and drain out of the holes. Adding a large hole on the tray at a higher level will allow you to crank the pump up until it goes down this overflow thus giving you a uniform flow of oil through each container.

The real beauty of this idea is that if you ever give up mining, with some seeds, hydroponic solution and a grow light you have a ready made indoor hydroponic system and a brand new hobby, lol

http://www.petrochemcarless.com/white-oils.htm
I don't know where you live but you may want to try this place for the oil?


If I was going to build something like this here is what I would do assuming of course I had a pond

I would use a 240v recirculating pump (have it) and a car radiator (have it) and make the exchanger out of 10mm plate (have it). Only thing I would have to buy is the water hoses, steel pipe and the oil.
 

One other item was that the trojan makers have started to make some effort towards BTC. While no one is suggesting that the BTC code itself is under threat everyone who has a wallet on an unsecured system is and it is only going to get worse. I know I cannot secure a windows PC, worse those with less computer skills are going to think they are secure because norton told them so. I wouldn't even know where to start with a mobile OS.

So 3 options really. Go with one of the two upgrade options that of us voting 99% of us can not technically evaluate anyhow. And correct me if I am wrong the Devs already voted on the BIP16 although it was not unanimous so it spilled over to us?

Or delay implementation and run the risk of the public losing confidence in BTC if the hackers manage to steal enough coin and this is going to become more likely as the more of less computer savvy join BTC.

This is my vote and reasoning behind it.

1. I am not qualified to make an informed vote but the mechanics mean I must cast a vote anyhow.
2. Having the public lose confidence in a currency is far from good no mater how it happens - delay is out.
3. It appears the jack jr lost the dev team vote so sent it to the miners turning the decision into a raffle rather than and informed choice.

I guess that means I vote for BIP 16........