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Topic: KanoPool kano.is lowest 0.9% fee 🐈 since 2014 - Worldwide - 2432 blocks - page 1395. (Read 5352429 times)

newbie
Activity: 2
Merit: 0
 Huh Is anyone out there having a problem login in?
 Grin Had no problem a few days ago  Grin
legendary
Activity: 952
Merit: 1003
I don't want to take this too far
Hello,

Technically, if the S9 really use 1275W At the wall, it's use 1275 x 0.93 = 1185W on 12V. So a good quality 1200W PSU is enough but be the smallest unit you can use.

But usually, best efficiency is obtain at the half of power. At full power, you usually loose between 1 and 2% efficiency.

So a gold PSU used at 50% is very near a platinum PSU used at 100% (and will probably be more reliable)




it says 1275 dc + 7% at wall based on a plat psu.  that 1200 watt can do 1320 watts at the wall as I think it is a gold not a plat.

a 1275 dc  x 1.1 = 1402 at the wall.

so you need a better psu then those 1200 watt hp dps 1200 and remember the spec up are for the batch 2 and batch 3  s-9's

the s-9 batch 1 was specced to run at freq 650  and use 1390 watts dc +7%  if a plat psu.

there is no  way the hp dps1200 should be used on an s-9  unless you really clock low like  450 to 500 or so.

I've finally managed to take some direct measurements of DC draw on an S9.
Even though it's mining on kano.is during the measurements, I don't want to go too far o/t with details, but:

The DC draw for this unit is 1.89W*MHz + 57W for fans/controller everywhere from 450MHz to 668.75MHz.

At 650 w/ 100% fan the DC draw is 106.67A @ 12.051V = 1285.5W
50% fan only saves about 10W, but does take the unit exactly to its spec of 1275W.


at 1500 watts for $119, this might be a decent PSU:

http://www.centrix-intl.com/details.asp?Parent2ID=1&productid=13323

firetreeactual  might know more about this PSU?

Just saw this post...I haven't used this particular one, but I would trust it. I've been buying the 1KW HP bricks from Centrix for months, and they've been dependable and cost effective. If they say it's for an S9, it means they've tried it. They run a farm in WA as well. Price is sure OK. I don't have 240 available here, which is another reason why I use the 1KW bricks at 120.
 
full member
Activity: 218
Merit: 100
Another block  Grin Grin Grin Grin Grin Grin Grin

Our 5th Block for the day
legendary
Activity: 952
Merit: 1003
LOL... you guys crack me up!  Cheesy

1. No, this is not sorcery... it's probably all about law of averages and using Kano historical & luck data and making a guestimate.

2. At 35-40PH, the 3-4 blocks per day is average for pool size. At 40-45PH, 4-5 blocks should be the norm.

3. So if we hit one early in UTC, there is good upside for more blocks. Why? Because Kano pool is very lucky (see stats).

4. Some of you PM me on rental strategy... pls take note that you need 5ND on your side to get good payouts.

5. 5ND matures to a certain peak after 1 day and 12 some hours. So timing is everything.

6. Don't go overboard on rentals - have a system and be disciplined about how much you willing to "invest"  Grin

7. Those who have good electricity rates, don't waste BTC on rentals, just go buy S9 and mine with real iron.

8. Last but not least, ignore the points above - its all about pool luck (Kano and -ck will probably comment more on this  Grin).


My thoughts as well. I don't rent...but the reasoning is sound. And I like Rule 8...ignore rules 1 thru 7.  Cool
legendary
Activity: 1736
Merit: 1032
Carl, aka Sonny :)
Block by QrVTLwJda with his 2nd Kano Block!  That is our 4th of the day!  Cheesy
legendary
Activity: 1834
Merit: 1080
---- winter*juvia -----
LOL... you guys crack me up!  Cheesy

1. No, this is not sorcery... it's probably all about law of averages and using Kano historical & luck data and making a guestimate.

2. At 35-40PH, the 3-4 blocks per day is average for pool size. At 40-45PH, 4-5 blocks should be the norm.

3. So if we hit one early in UTC, there is good upside for more blocks. Why? Because Kano pool is very lucky (see stats).

4. Some of you PM me on rental strategy... pls take note that you need 5ND on your side to get good payouts.

5. 5ND matures to a certain peak after 1 day and 12 some hours. So timing is everything.

6. Don't go overboard on rentals - have a system and be disciplined about how much you willing to "invest"  Grin

7. Those who have good electricity rates, don't waste BTC on rentals, just go buy S9 and mine with real iron.

8. Last but not least, ignore the points above - its all about pool luck (Kano and -ck will probably comment more on this  Grin).
member
Activity: 92
Merit: 10
3 blocks today ... are we heading for a block party on thursday?  Cheesy
full member
Activity: 165
Merit: 100
got wings?
Is this sorcery? 86% block just came in from tomaszew_worker3

yes, those chicks' sacrifice feast by citronick always pay back Grin Grin

Hahaha Cheesy Another at ~11.499%! Keep the fowl coming! It's chicken curry for me tonight.
full member
Activity: 143
Merit: 100
got wings?
Is this sorcery? 86% block just came in from tomaszew_worker3

yes, those chicks' sacrifice feast by citronick always pay back Grin Grin
full member
Activity: 165
Merit: 100
got wings?
Is this sorcery? 86% block just came in from tomaszew_worker3
legendary
Activity: 1834
Merit: 1080
---- winter*juvia -----
hero member
Activity: 658
Merit: 500
Visualize whirledps
Time to sacrifice a chicken processing plant.
These long blocks make me sad.  Sad

Maybe it will work again! Here we go! Wink



sr. member
Activity: 316
Merit: 250
Bitfinex Outage Causes Temporary BTC/USD Price Plunge,....... that's why I sold my steak and am stocking my freezer with chicken Grin

I think its quite odd that they had two outages in twenty-four hours.  ........just saying.
hero member
Activity: 786
Merit: 1000
I don't want to take this too far
Hello,

Technically, if the S9 really use 1275W At the wall, it's use 1275 x 0.93 = 1185W on 12V. So a good quality 1200W PSU is enough but be the smallest unit you can use.

But usually, best efficiency is obtain at the half of power. At full power, you usually loose between 1 and 2% efficiency.

So a gold PSU used at 50% is very near a platinum PSU used at 100% (and will probably be more reliable)




it says 1275 dc + 7% at wall based on a plat psu.  that 1200 watt can do 1320 watts at the wall as I think it is a gold not a plat.

a 1275 dc  x 1.1 = 1402 at the wall.

so you need a better psu then those 1200 watt hp dps 1200 and remember the spec up are for the batch 2 and batch 3  s-9's

the s-9 batch 1 was specced to run at freq 650  and use 1390 watts dc +7%  if a plat psu.

there is no  way the hp dps1200 should be used on an s-9  unless you really clock low like  450 to 500 or so.

I've finally managed to take some direct measurements of DC draw on an S9.
Even though it's mining on kano.is during the measurements, I don't want to go too far o/t with details, but:

The DC draw for this unit is 1.89W*MHz + 57W for fans/controller everywhere from 450MHz to 668.75MHz.

At 650 w/ 100% fan the DC draw is 106.67A @ 12.051V = 1285.5W
50% fan only saves about 10W, but does take the unit exactly to its spec of 1275W.


at 1500 watts for $119, this might be a decent PSU:

http://www.centrix-intl.com/details.asp?Parent2ID=1&productid=13323

firetreeactual  might know more about this PSU?
hero member
Activity: 658
Merit: 500
Visualize whirledps
Seems that sacrifice worked Smiley
almost 3% fees too Smiley

bendera's first block, with ~5THs

Hurray!
legendary
Activity: 1834
Merit: 1080
---- winter*juvia -----
Time to sacrifice a chicken processing plant.
These long blocks make me sad.  Sad

BLOCK!

Bendera! Great to see a 5.37TH miner hitting a block!

Today we need plenty of BACK to BACK blocks!
legendary
Activity: 4634
Merit: 1851
Linux since 1997 RedHat 4
Seems that sacrifice worked Smiley
almost 3% fees too Smiley

bendera's first block, with ~5THs
hero member
Activity: 658
Merit: 500
Visualize whirledps
Time to sacrifice a chicken processing plant.
These long blocks make me sad.  Sad
legendary
Activity: 924
Merit: 1000
Dark Passenger Bitcoin miner 2013,Bitcoin node
wait as we get closer to the halving the venerability with the online wallets come out of the woodwork Grin
newbie
Activity: 10
Merit: 0
Bitfinex Outage Causes Temporary BTC/USD Price Plunge,....... that's why I sold my steak and am stocking my freezer with chicken Grin
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