Also, you have to consider temperature increases and statistical variance of hashing speed etc.
It is normal that the hashrate can go down by 30-100 GH if the unit gets warmer (e.g by 7 degrees....).
crap...what is the best temp for say sp30 (ball park guess?).... decided to stick the sp30 sept and the Titan KNC miner
in bsmt ....(cheapo.....figured 40 days of cooling vs 2-3 months heat in winter) .prob was not my wisest move
in other words just from the get go should I have something like the window a/c unit (with say looped flex a/c type tube 16") from
front of regular basement window...about 3'ft across ceiling and then just drape the last 3 ft straight down over the sp30 unit?
would 'baby' purr better? (ie how cold is too cold or don't matter)
maybe i should just shoot for overkill in the first place (doable if a pain in the a*s)
(well..this project certainly is getting out of control)
Searing
If you have an attick, don't install any gable fans. I would definitely go for one of those full house fans that usually sit on your roof in the middle of the attick. If you get one powerful enough it can pull and circulate the air in your house in a matter of minutes. I've seen some so powerful that if you open up the access panel to the attick while the fan is on and toss a tissue in the air it will get swept up into the attack. Negative air pressure is what you want of course for that air circulation. I learned my lesson with this by installing gable fans on both ends of my attick and basically nothing happened. Too bad those evaporative fans don't work good in the summer.
sorry I was unclear by 'attic fans' i ment the fans you are refering to but plan to put them in bsmt windows (cold limestone bsmt) and use them to push/pull or whatever air thru the bsmt on those days it makes sense to do so..if there is a particular attic type fan (type not actully in the attic I just call them that) anyway a 'fan' that would work better to get air flow in and out of the bsmt on those days it makes sense please refer me to such (all you gpu guys had to get heat out of the bsmt somehow)
but arriving in august titan and sept sp30 i suspect there will be 30 days or so where just plan ass a/c window unit gets cranked up....no real sense in dragging in humid 95F degree heat in the bsmt till bsmt is 94F and humid and then pushing it out again ..at that point it will be the 10k btu a/c window unit vs the 4000 watts from the miners in heat (ie equiv of fighing a 4000 watt space heater)
let the better device win (man it will be like trying to heat your house with the windows open same logic)
anyway over kill it is...may not need window a/c unit for some sweltering days better to set it up ahead of time as a failsafe..would have been nice to have central air
(alas those $$$ went into miners heh)
Searing
