[Work in progess] Burnins Avalon Chip to mining board service - page 118.

fiktionist

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Quote from: SebastianJu on July 12, 2013, 05:22:46 PM

Quote from: chanberg on July 11, 2013, 06:07:25 PM

Quote from: tigerbit on July 11, 2013, 05:54:46 PM

Intriguing. Looks very nice.

Couple of questions:

can the boards still stack easily with this back to back cooler arrangement?

can someone with some watercooling experience give me an idea of the BOM to cool 12 boards?
12x80 = 960W

It seems like a great idea but I'm worried it will prove expensive when you add in radiators, pumps, fans, reservoirs. Is this going to need £300 investment on top of the cooling blocks?

it honestly all depends on the waterblock price and number of boards your going to get..

Can you translate this into cost per miner? For example "Watercooling a bitburner XX would cost X more €/$".

as burnin said earlier, the cooler will be for two bitburners and the price difference between aircooling and watercooling should be at ca. 15euro per board.

simple math.

15€ per Board for the watercooler, 280€ for the watercooling itself.

the more bitburners you cool, the "cheaper" it gets.

Watercooling is nothing for beginners, if you have no clue about it, leave it. One leak can kill your bitburners instantly!

pitchbend

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Activity: 242

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Burnin, you said you will give us 24h notice prior to website opening. We will also need to have price quotes for all the accessories (cables, psu, watercooler solution etc.) before you open the website so we can make our calculations to have the required funds ready.

g83

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hope that burnin can provide us with a complete watercooled plugandplay setup

ewibit

legendary

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Quote from: SebastianJu on July 12, 2013, 05:22:46 PM

Can you translate this into cost per miner? For example "Watercooling a bitburner XX would cost X more €/$".

+1

SebastianJu

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Quote from: chanberg on July 11, 2013, 06:07:25 PM

Quote from: tigerbit on July 11, 2013, 05:54:46 PM

Intriguing. Looks very nice.

Couple of questions:

can the boards still stack easily with this back to back cooler arrangement?

can someone with some watercooling experience give me an idea of the BOM to cool 12 boards?
12x80 = 960W

It seems like a great idea but I'm worried it will prove expensive when you add in radiators, pumps, fans, reservoirs. Is this going to need £300 investment on top of the cooling blocks?

it honestly all depends on the waterblock price and number of boards your going to get..

Double 120mm Radiator - 100$
Pump - 80$ (Laing D5)
2 - 120mm Fans - 40$ (High static Pressure Fans) or 80$ if push pull config
Reservoir - 50 bucks
Fittings and Hoses - Depending on how many waterblocks you have, your looking at 2-5 dollars per fitting.. 6 boards is 12 fittings, plus 6 for pump, rad, reservoir.. These are the cheap fittings too.. If you get like nice fittings like monsoon your looking at 5-6 bucks EACH... 20 fittings would be 120 bucks alone...
Fluids - Distilled water or special additive. 20 bucks.

Can you translate this into cost per miner? For example "Watercooling a bitburner XX would cost X more €/$".

dani

hero member

Activity: 525

Merit: 500

..yeah

Also at what fan speeds was your example? I guess around 1500 rpm, not something silent which i prefer (800 or so)

Sophokles

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Quote from: finnzwerg on July 12, 2013, 05:43:47 AM

Quote from: chanberg on July 11, 2013, 05:47:58 PM

damn looks nice... But how do the boards attach onto the waterblock... 5 screws on each board, screwing onto the same location on the waterblock....

Also are the waterblock G 1/4 threads? Would love to use my own fittings...

Danny

Of course we use G 1/4" threads Wink

You will also be able to order the waterblocks over our homepage (anfi-tec.de) but then you have to pay twice the shipping cost and you have to attach the cooler yourself.

@schrankwand yes that is right. ~95% of the heat will be emit in the water.

About the radiator size:

When you use a tripple Radiator (3*120Fans) you have round about ~0,025°C/w = - that means per 100w the watertemperatur will rise 2,5°C.
If you use a Mora (or 3 Tripple radi) radiator you have round about ~0,008°C/w - that means per 100w the watertemperatur will rise 0,8°C.

here is a short upscaling example:

Tripple radi and 16 Boards @40w =640w -> 0,025°C/w * 640w = 16°C watertemperatur over Air Temperatur. with a 3 trippleradis = 5,3°C
Tripple radi and 16 Boards @80w =1280w -> 0,025°C/w * 1280w = 32°C watertemperatur over Air Temperatur. with 3 trippleradis = 10,6°C

no guarantee for these examples!

Regards Finn

Hi,
thanks for the examples. One variable in the equation was not discussed yet: flow rate.

What is the minimum flow rate for your examples?
What pump would you suggest?
For pumps, the maximum flow rate is usually given. How would the flow rate change with a radiator attached?
How much would 16 or even 48 boards decrease the flow rate? Is there some formula to make estimations?

tigerbit

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Activity: 80

Merit: 10

Quote from: fiktionist on July 12, 2013, 09:32:36 AM

Quote from: tigerbit on July 12, 2013, 09:29:54 AM

Follow on question for the 16 board example:

Connections?

Is a manifold required either side of the boards? Else board number 16 in the chain will be getting some warm water cooling!

Radiators llike the Mora have 3 inputs. How should the loops be best designed to make most efficient cooling. A simple chain of 16 boards sounds like a really bad idea.

thats not correct. the difference in watertemp. at the 3rd and the 16th board is too low to make any difference.

And besides that, my mora just has 2 G1/4. One Inlet and one outlet.

That's good to hear. I think new Moras have multiple connections, but if the difference in a chain of boards is negligible and it's possible to run a simple single loop chain, nothing to worry about. I just thought the cooLing water entering the last board in chain had already had over 1kWh of heat dumped into it, but if you tell me this isn't a problem then great!

fiktionist

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Activity: 72

Merit: 10

Quote from: tigerbit on July 12, 2013, 09:29:54 AM

Follow on question for the 16 board example:

Connections?

Is a manifold required either side of the boards? Else board number 16 in the chain will be getting some warm water cooling!

Radiators llike the Mora have 3 inputs. How should the loops be best designed to make most efficient cooling. A simple chain of 16 boards sounds like a really bad idea.

thats not correct. the difference in watertemp. at the 3rd and the 16th board is too low to make any difference.

And besides that, my mora just has 2 G1/4. One Inlet and one outlet.

tigerbit

member

Activity: 80

Merit: 10

Follow on question for the 16 board example:

Connections?

Is a manifold required either side of the boards? Else board number 16 in the chain will be getting some warm water cooling!

Radiators llike the Mora have 3 inputs. How should the loops be best designed to make most efficient cooling. A simple chain of 16 boards sounds like a really bad idea.

madmax_ger

sr. member

Activity: 448

Merit: 250

I have 40 chips ordered, so there will only be 2 Bitburner XX for me.
A watercooling setup would be a very small one, seems like this doesnt make sense.

Will I be able to cool them by air well enough for OC or is watercooling required then?
Any idea yet?

Schrankwand

full member

Activity: 224

Merit: 100

Alright, that makes sense.

Here comes the next question: How does water temperature in the end relate to chip temperatures?

Lets say I have a graphics card dissipating 400w and the water goes from ambient temperatur of 25° to 35°. How is that reflected on my GPU chip? Or Avalon Chip for the matter...

finnzwerg

newbie

Activity: 11

Merit: 0

Quote from: chanberg on July 11, 2013, 05:47:58 PM

damn looks nice... But how do the boards attach onto the waterblock... 5 screws on each board, screwing onto the same location on the waterblock....

Also are the waterblock G 1/4 threads? Would love to use my own fittings...

Danny

Of course we use G 1/4" threads Wink

You will also be able to order the waterblocks over our homepage (anfi-tec.de) but then you have to pay twice the shipping cost and you have to attach the cooler yourself.

@schrankwand yes that is right. ~95% of the heat will be emit in the water.

About the radiator size:

When you use a tripple Radiator (3*120Fans) you have round about ~0,025°C/w = - that means per 100w the watertemperatur will rise 2,5°C.
If you use a Mora (or 3 Tripple radi) radiator you have round about ~0,008°C/w - that means per 100w the watertemperatur will rise 0,8°C.

here is a short upscaling example:

Tripple radi and 16 Boards @40w =640w -> 0,025°C/w * 640w = 16°C watertemperatur over Air Temperatur. with a 3 trippleradis = 5,3°C
Tripple radi and 16 Boards @80w =1280w -> 0,025°C/w * 1280w = 32°C watertemperatur over Air Temperatur. with 3 trippleradis = 10,6°C

no guarantee for these examples!

Regards Finn

Schrankwand

full member

Activity: 224

Merit: 100

Quote from: fiktionist on July 12, 2013, 04:51:20 AM

Quote from: Schrankwand on July 12, 2013, 04:46:52 AM

Quote from: fiktionist on July 12, 2013, 04:36:06 AM

Quote from: Serjah on July 12, 2013, 04:26:48 AM

It's even pretty, what terms is producing? I want one of those too

Quote from: fiktionist on July 12, 2013, 04:07:54 AM

My MORA is ready! Cheesy

atm its cooling a dual Sandy Bridge-EP 8core Xeon Setup with two GTX770. The Mora is bored

Fans at 700rpm and the air/water dif. is just like 8°C.

http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/25120

Looking at this setup it makes me want to water cool my whole computer.

Could you do us a favour and maybe point towards a place that explains watercooling well? German is ok for me, others might prefer english.

What I don't want to see is basically me checking everything, realizing that there is still something I need and then realize I have to wait three days for it to arrive... that would be unprofitable Cheesy

i would stick to this

http://lifehacker.com/5940236/a-beginners-guide-to-water-cooling-your-computer

Looking good. Now I would love to understand how to calculate how much dissipation one of these rads can handle, could anyone help me?

I have six boards. From the conservative side I calcualte that a board at max speed takes up 70 watts very conservative.

So, 6 times 70 is 420 watts in power usage, I am not sure if this is correct, but I will simply use a "nothing lost" calc and assume that I need to dissipate 420w in heat.

How do I now calculate, how much dissipation the radiator brings? From what I see, with six boards I am assuming that a dual 120mm XSPC variation would be fine. And I would love that. I would use their kit with pump, buy more adapters, filling rings and buy more hoses and am done with it.

Did I understand that right? Damn, im a watercooling newb...

fiktionist

member

Activity: 72

Merit: 10

Quote from: Schrankwand on July 12, 2013, 04:46:52 AM

Quote from: fiktionist on July 12, 2013, 04:36:06 AM

Quote from: Serjah on July 12, 2013, 04:26:48 AM

It's even pretty, what terms is producing? I want one of those too

Quote from: fiktionist on July 12, 2013, 04:07:54 AM

My MORA is ready! Cheesy

atm its cooling a dual Sandy Bridge-EP 8core Xeon Setup with two GTX770. The Mora is bored

Fans at 700rpm and the air/water dif. is just like 8°C.

http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/25120

Looking at this setup it makes me want to water cool my whole computer.

Could you do us a favour and maybe point towards a place that explains watercooling well? German is ok for me, others might prefer english.

What I don't want to see is basically me checking everything, realizing that there is still something I need and then realize I have to wait three days for it to arrive... that would be unprofitable Cheesy

i would stick to this

http://lifehacker.com/5940236/a-beginners-guide-to-water-cooling-your-computer

Schrankwand

full member

Activity: 224

Merit: 100

Quote from: fiktionist on July 12, 2013, 04:36:06 AM

Quote from: Serjah on July 12, 2013, 04:26:48 AM

It's even pretty, what terms is producing? I want one of those too

Quote from: fiktionist on July 12, 2013, 04:07:54 AM

My MORA is ready! Cheesy

atm its cooling a dual Sandy Bridge-EP 8core Xeon Setup with two GTX770. The Mora is bored

Fans at 700rpm and the air/water dif. is just like 8°C.

http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/25120

Looking at this setup it makes me want to water cool my whole computer.

Could you do us a favour and maybe point towards a place that explains watercooling well? German is ok for me, others might prefer english.

What I don't want to see is basically me checking everything, realizing that there is still something I need and then realize I have to wait three days for it to arrive... that would be unprofitable Cheesy

fiktionist

member

Activity: 72

Merit: 10

Quote from: Serjah on July 12, 2013, 04:26:48 AM

It's even pretty, what terms is producing? I want one of those too

Quote from: fiktionist on July 12, 2013, 04:07:54 AM

My MORA is ready! Cheesy

atm its cooling a dual Sandy Bridge-EP 8core Xeon Setup with two GTX770. The Mora is bored

Fans at 700rpm and the air/water dif. is just like 8°C.

http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/25120

Serjah

newbie

Activity: 33

Merit: 0

It's even pretty, what terms is producing? I want one of those too

Quote from: fiktionist on July 12, 2013, 04:07:54 AM

My MORA is ready! Cheesy

fiktionist

member

Activity: 72

Merit: 10

My MORA is ready! Cheesy

tigerbit

member

Activity: 80

Merit: 10

Quote from: chanberg on July 11, 2013, 06:07:25 PM

Quote from: tigerbit on July 11, 2013, 05:54:46 PM

Intriguing. Looks very nice.

Couple of questions:

can the boards still stack easily with this back to back cooler arrangement?

can someone with some watercooling experience give me an idea of the BOM to cool 12 boards?
12x80 = 960W

It seems like a great idea but I'm worried it will prove expensive when you add in radiators, pumps, fans, reservoirs. Is this going to need £300 investment on top of the cooling blocks?

it honestly all depends on the waterblock price and number of boards your going to get..

Double 120mm Radiator - 100$
Pump - 80$ (Laing D5)
2 - 120mm Fans - 40$ (High static Pressure Fans) or 80$ if push pull config
Reservoir - 50 bucks
Fittings and Hoses - Depending on how many waterblocks you have, your looking at 2-5 dollars per fitting.. 6 boards is 12 fittings, plus 6 for pump, rad, reservoir.. These are the cheap fittings too.. If you get like nice fittings like monsoon your looking at 5-6 bucks EACH... 20 fittings would be 120 bucks alone...
Fluids - Distilled water or special additive. 20 bucks.

From the info I found googling around the PC cooling options, I don't thing a 120.2 is going to come close to dissipating 1kW which is what would be required for 12 boards with decent over clocking. Unless I'm very much mistaken to maintain a reasonable delta of 10 degrees in the loop I'd be looking at x3 120.3s or x2 120.4s. As I said, advice from an experienced water cooler that understands head dissipation, delta Ts, and fan/flow rates would be appreciated.

It's an example BOM for components other than the water blocks I'm interested in as we can order those with the boards.

Topic: [Work in progess] Burnins Avalon Chip to mining board service - page 118. (Read 624197 times)