Antminer s9 SLIC cooling. Overclocking? Setup?

[Jallmar]

Hello!

I´ve the past 3 weeks read as much as i could about mining in general (my wife isnt happy). Reading hours and hours every day and i still dont know more than 0.01%  

I thoughts are following -
The plan is to start out small. I turn a profit on mining since i pay ZERO for electric, and will continue to do so. For the moment i have my S9 in the basement (which holds 15c year round)
My S9 puts out a steady 16-16.5th/s.

Before im ordering more asic miners im going to try out full immersive cooling with single-phase liquid, 20l of bitcool bt888 will arrive next week. I want to give this a try and dump the fans and their 18-20% power usage, and utilize this for overclocking.

The test will consist of 1 small tank, 1 circulationpump capable to move 1.2l/min/1000w as recommended by supplier, i will run this trough a car radiator with fans blowing at it. 1 s9 gives out almost as much heat as it consumes or 4500-5000btu. I dont think there will be a problem cooling down just 1 asic, but there will be some thinking involed when and if i move up to cooling down 5-10 miners.

My questions are -

* Do you have any experience with full immersive cooling with engineered fluids such as BitCool?
* Im i able to overclock the machine to its max without destroying it? (if the cooling is sufficient)
* How much have you managed to clock a s9 immersive cooled?
* Do you know the long term effects SLIC cooling does to asic miners?
* Is it an good idea you think to submerge and overclock?

Looking forward to your answers, thank you.

[dext0rb]

i am interested in the same thing! a small bitcool immersion setup for 1 S9. what is the brand/model of the pump you are using? it has to have specific viton seals for it to be compatible.

i have not done it myself yet, but i think you can and should OC as much as you can (within cooling & dont forget power limits)
you might as well!

from what ive read the fluid lasts a long time and long term effects should be nothing, since the fluid is designed to be compatible with the materials in the asic. (i have read some incompatible fluid/materials will cause capacitors to bulge and become destroyed).

[mikeywith]

and dump the fans and their 18-20% power usage, and utilize this for overclocking.

20% of 1200w that S9s consumes on asicboost enabled firmware is 240w, i am not sure where did you pull that from but it's way too far from accurate, I have no idea how much exactly do they draw, but I know that 240w is good enough for say a 70*70cm fan at least, if I had to guess, each fan wouldn't draw more than 15w running at 100% speed, so you are not going to save 20% on power, your best would be 2%.


I don't have any personal experience with submerge cooling, but this dude has some dope setup > https://bitcointalk.org/index.php?topic=5192493.0 , I however can tell you that if you are already pulling out 16-16.5th/s of your S9s , the extra 3-4th you going to get will not really cover the cost for such a cooling system , I haven't seen anyone who got their S9s to go above 20th, not even the scammers on youtube who sell their infected or fake "boost" firmware.

at today's rates, you are looking at 20$ extra profit per miner a month at best case scenario, do the math , if you still think it's worth it, go for out, if not, just get yourself more miners instead.

[philipma1957]

S9 fans vary but 3 amp is pretty much one of the biggest so 3+3= 6 x 12 or 72 watts.

Op should give up on over clock he should try braiins software go for 10th at 825 watts.

Been there done that.  Fans run at half speed and no oil over clock ⏰ needed at all.

If he does this he gets more watts per th. Oh he will need one or two more s9s which is perfectly fine since they are very cheap.

[mikeywith]

Which I haven't spent all my merit for the day, this post deserves a ton of merit, many people fail to see the potential of focusing on efficiency, even if you were having a free power source, I don't have the exact figures but I am sure as hell that overclocking + submerge cooling is not any better than either getting more gears or simply aiming for better efficiency to be able to achieve as much overall hash rate as possible.

the only special case would be "noise reduction" if you have free power at a place where noise is not option, that liquid cooling makes sense, aside from that, i don't see how is it economically a good choice.

[Philipma1957cellphone]

I know that oil cooling seems nice. I guess he can say he is practicing with s9 then he can move to s17.