Depends on your pool.  If you are on Slush, it only takes about an hour to get ramped back up to full payment; or at least very close to full payment.

I have purchased eight [8] of these fans in total from the same seller on Amazon:  Delta Electronics PFC1212DE 120x120x38mm Cooling Fan, 252.85 CFM, 5500 RPM, 66.5 dBA, 4.8 Amp, PWM Connector (4-pin).  It is $27.00 with free shipping.  You do not have to be a Prime member to get free shipping on this one.  The seller is selling this through Amazon.  I'm sure they have already added shipping to the price.  It's worth it to me to pay $7.00 more for a great quality fan with lots of CFM.  This thing is a beast!

I use this fan as a replacement on my S4's and S5's.  I plan to replace the stock fans on the SP20's with this fan as well after the warranty period is over.  This is what you need when replacing fans for the SP20:  
http://www.ebay.com/itm/161350482183?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Here is the link on Amazon to the fan:  http://www.amazon.com/gp/product/B00HQ18UDA/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

You see the watts consumption @ 60 watts when at full throttle with 5,500 RPM's:  https://www.youtube.com/watch?v=__MhqY1zPK8

You see a 3 wire in 4-pin version of this fan [They took out one wire] turning the blades of another fan in this video:  https://www.youtube.com/watch?v=Wqc72EOuteU

You get to see the guts of the fan in this video:  https://www.youtube.com/watch?v=qo7nHzNXjww

It's my opinion that a fan with lower CFM than 4,000 RPM's should not be used on these rigs.  They do run very warm with one fan.  I presently have temperatures of 62 C on Chain #1 and 62 C on Chain #2 with the single fan at 3,840 RPM.  The Ambient temperature is 74 F.  The true purpose of getting a second fan should be for proper cooling of the unit.  One should not be concerned as much about the noise as they should about proper cooling of the rig during the hotter months of the year.

Yes, a fan with 4,000+ RPM's will cost more but it's worth it in my opinion.  Proper cooling and longevity of the rig is more important than the noise level to me.  My opinion; that's all.  Please don't take it personal.

David

All I know is I don't know what to believe right now.  Better safe than sorry!!!  I registered for one unit twice.  I intended to register for 2 units one time but accidentally clicked submit before I could change the quantity from 1 to 2.  We'll see what happens.  If I'm part of some elaborate joke, so be it.  If not, and my name gets drawn, Weeeeeeeeeeeeeee!!!

 

Just a reminder:

http://www.coindesk.com/spondoolies-tech-5-million-series-b/

"Our goal is to get to 0.05 W/GHs, 0.03 $/GHs miners by mid 2015 and power more than 30% of the bitcoin network," Corem explained, adding that he believes these figures will help the company match its rival firms in the US and China.

LOL

Well damn....  Bummer....    

I'll be alright....  lol

If this is an April fools, they got me as well!   

Hi,

I meant to put myself down in the drawing for 2 units.  I accidentally clicked submit without changing the 1 in quantity to 2 in quantity when my 4 year old hit my arm [making me accidentally tap "submit"].  I immediately filled out the drawing form for another single unit in quantity again.  I'm assuming this means I would have to get drawn twice to get both units now?  This is okay if that's the case...

I would have to agree with you there.

I'm fairly certain this was "made up."

LOL

 

It is hard to understand what you are trying to say.

See if you can find someone else who understands English a little better to explain what you want to know.

No disrespect intended.  Only trying to help!

David

Sorry a little slow getting back.  I've been out of the loop all day today.  I've been out of town at my grandfather's funeral.  I did get to see cousins I had not seen in years from Texas.  I did enjoy that!

Thanks again for the props, Sir!

Yes, 10.5 cents per kWH is steep compared to Washington State.

At present:

6   - S5’s @ 600 watts each = 3,600 watts @ 1,150 GH/s each on average = 6,900 GH/s
18 - S3’s @ 370 watts each = 6,660 watts @ 465 GH/s each on average = 8,370 GH/s
5   - S4’s @ 1270 watts each = 6,350 watts @ 2,040 GH/s each on average = 10,200 GH/s
15 - SP20’s @ 740 watts each = 11,100 watts @ 1310 GH/s each on average = 19,650 GH/s
Total hash and watts = 45,120 GH/s @ 27,710 watts [Average of .61414 watts per GH/s]

30 inch 7,800 CFM exhaust fan @ 300 watts
2  - 20 inch box fans at 300 watts combined
1  - 16 inch oscillating fan @ 120 watts
1   - 48 port switch @ 40 watts
Total watts of peripherals = 760 watts

Total system watts with peripherals = 28,470 watts @ 10.5 cents per kWH 24/7 for 30.416667 days in one month = $2,008.84

Cost Per Hour:   $2.989350
Cost Per Day:   $71.744400
Cost Per Week:   $502.211
Cost Per Month:   $2,008.84
Cost Per Year:   $26,114.96

45,120 GH/s @ present difficulty of 46,717,549,644

BTC per hour:     0.02024
BTC per day:       0.4858
BTC per week:     3.401
BTC per month:  14.58

With BTC @ $250.00 = $3,645.00 in one month - $2008.84 power costs = $1,636.16 in one month @ present difficulty
With BTC @ $260.00 = $3,791.00 in one month - $2008.84 power costs = $1,782.16 in one month @ present difficulty
With BTC @ $270.00 = $3,937.00 in one month - $2008.84 power costs = $1,928.16 in one month @ present difficulty
With BTC @ $295.00 = $4,301.00 in one month - $2008.84 power costs = $2,292.16 in one month @ present difficulty

I mentioned the price of BTC @ $295.00 because that helped me buy six S5's after power costs this month.  I just got them going Thursday, March 26.  I'm using the profit after power costs to add more hash rate every month.

I really don't care about how much profit is made at the moment.  I'm only focusing on adding hash power to take with me to Washington State where the power is much cheaper.  For example:  With the same hash rate in Washington State @ 3.4 cents per kWH, the power costs come out to the following:

Total system watts with peripherals = 28,470 watts @ 3.4 cents per kWH 24/7 for 30.416667 days in one month = $650.48

That means you would add $1,358.36 to my profits after power costs [with my present hash rate] for the numbers mentioned above.  For instance; with BTC @ $250.00 = $3,645.00 in one month - $650.48 power costs = $2,994.52 in Washington State versus $1,636.16 in Alabama.  That's almost twice as much profit!  So, when the blocks cut in half, you see how it would be less stressful in Washington State.

You and I have the same power costs.  I'm also at 10.5 cents per kWH here in Alabama.  I'm still making money with 44.8 TH/s [All SP20's are under clocked].  I could have 48.5 TH/s easily right now but I'm keeping the SP20's close to the same efficiency as my six (6) S5's I just got in yesterday.  You do not see them in the picture.

The main reason I'm continuing to add rigs regardless is because I'm planning to move to Washington State the last quarter of this year to have access to 3.2 cents per kWH after demand charges and fees.  That will be a considerable drop in power costs for me and also help me survive the block halving much easier with less stress.  This is why I'm also holding on to my S3's.  As they can still make me a decent amount of money in Washington State with much lower power costs.  I'm keeping them running as long as I still have power available to run them. They have already made ROI (paid for themselves) except for two of them.

Thank you, notlist3d.  It's still a work in progress...

I responded to your PM

It's cool.  I get it all the time.

I've been remodeling my home [It's a fixer upper].  Here you see where I had scaffolding up on the left side of the house at one time.  It is finished now.  I've put all new windows in the house as well.  I spent $17,000.00 on new casement windows for the front, back and both sides.  The house actually has two more windows than what it had previously.

Black spray paint... LOL   

I painted stair case spindles against the wall on a rainy day inside the house downstairs before this closet was built.

Here's some of the iron staircase spindles [I'm remodeling my house all by myself]  That's part of a huge leather sectional you see in the upstairs living room:

No, I did not.  You?