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Author Topic: i need to buy S9 but i have a problem with PSU  (Read 2623 times)
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July 06, 2016, 07:59:15 PM

Do you have a free or very cheap electricity?
Do you have already  a powerful enough conditioner for cooling miners?
Are you confident that in the future you will not buy more miners ?

free electricity
i will user air condition 1.5 hp in (2m*4m) room size and i will use tube like this in picture to transfer heat outside room
i can buy more in the future and put all in this room

So you want use this
with COOLING CAPACITY  12,000 Btu/h   for remove heat at least 2400W heater. (2x S9 )

Do you know that the air conditioner is going to melt mode ?  5 minutes no frost at all.

I hope your air conditioner  is with  good warranty.
But you do not have to worry about it . LG Inverter does not work with 180V

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July 06, 2016, 10:15:31 PM

You may be stuck buying a 1600w PC PSU which will take 120-240v.
I can't say how well they will take constant voltage changes, but if it's within the range they will certainly work.
Look up an eVGA 1600w G2, they're around $360 USD.

 my method of underclocking to freq 462 and buying the evga 1300 g2 is better

he saves 160 usd maybe more.   

he runs at 9.9 th vs 12.0 th

so he loses 2 th.

gear is much quieter much cooler

if it is hot desert he is well off.

2 th is going to earn 160 usd in about 7 months.   So he would be ahead of the game for the next 7 months. with the evga 1300 g2 and a downclock.

plus much much much much less noise.

and less heat

This.  Maximum hashrate is not optimal solution.

I gave up  I led him to the water and he won't drink it.

I did the same trying to explain quality of PSU's and he kept picking new one's.  I don't get the urge to use 3 or even 2 when 1 is best. The scariest one was the 3 500's he had picked.

I still worry about op's electricity "i have free electricity but its very bad which moving all the time between 185V to 220V ( using voltage stabilizer! ) without stabilizer it moving between 145V to 180V".  Sounds like he's starting out with pretty bad electrical to begin with.
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July 07, 2016, 02:17:47 AM

I would not give him any more advice as I am thinking he is a troll?

I mine alt coins with
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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July 08, 2016, 07:05:11 AM

i ordered EVGA SuperNOVA 1600 G2 80+ GOLD to be safe
thank you for your help
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April 04, 2017, 05:15:15 PM

you buy this power supply?
this cougar can support 6 rx-480 nitro cards?


i have this power supply too
Cougar CMX1200 CGR B2-1200CM 1200W
it have 6 (PCI-E 6 pin) so it can power 2 boards
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