Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

12.000w of heat cooled with 285w ? Air cooled?
285w? do you have a killawatt meter?
i doubt is 285w.

Yes. Measured exactly 285w with a kill-a-watt. How much power do you think it takes to drive a 5500CFM fan and a small water pump? Certainly not more than this. On really dry/hot summer days, my cooler will drop the air temperature over 20 degrees ferenheit (6.6 celsius).

Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

don`t forget to add video card fans

Yes, I need to add in the power from some of my fans. I was keeping things simple just to compare evap vs AC.

Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

if you pay 0.25usd. x kw = $294usd./year.

I only pay 0.104377usd per kw during the day. At night and on weekends, I pay 0.038162usd per kw. In another month, the air temperature outside will be so cold that I wont need the evap cooler anymore.

Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

Cappacitors last 10 Years working under <80°C.
lets see how long yours last.

Most of my GPUs are running around 65c and 67c. There are a few that are hitting 75c. The air coming off of the heatsinks is much cooler. I doubt the caps are getting that hot. Besides... why would I keep these cards for years? That wouldn't be very smart to not sell them and upgrade eventually.

Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

with $3000usd. can buy 30x 6970 waterblocks.
Car/Truck radiators are "free" in junk yards.
only need tubes, pumps & distiled H2O every month.

I have more than 30 cards. Pumps aren't free. Car/truck radiators aren't free. I'd still have to run water lines outside and keep them from freezing if the power ever went out. Temperatures have hit -10C here before. Lastly, my TIME isn't free and it will be difficult to sell 50 water blocks when I'm done with these cards. The 7000 series will be out by then and people wont be looking for 6000 series waterblocks.

Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

I think, i stick with WaterCooling.
as they say: "Watercooling system minimizes failure".

For my main machine at home? Yep. It's been water cooled for years. Definitely not for my Bitcoin rigs though. Too expensive.

Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

The guy on this video:
http://www.youtube.com/watch?v=eLt8Se3vVNg
http://www.youtube.com/watch?v=G5f_e4P6gMA

has 3x4=12x 80watt fans.

But I don't.

Quote from: JuanPabloCuervo on September 05, 2011, 05:41:46 PM

if Bitcoin goes under <$5usd. will loose money.

But I wont!

At the current difficulty, Bitcoin would have to drop under $2.5 for my rigs to to be unprofitable in the summer. It would have to drop under $2 for it to be unprofitable in the winter.