Post
Topic
Board Hardware
Re: [Work in progess] Burnins Avalon Chip to mining board service
by
Sophokles
on 12/07/2013, 16:10:16 UTC
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?