Cascade 5 (2 Stage GPU)

[Nosfer@tu]

The clenlyness is amazing.
Love the work done

[bazx]

after trying the slhx i removed it

it failed to give me the results i was looking for so

i moved on to the large water barrel

and a pond pump

more images here

http://www.benchtec.co.uk/1/cascade5.../watercooling/

[bazx]

the pump is the same unit people use in there garden

the idea here is to take the cooler water from the bottom of the tank
and return the warmer water from the dsh to the top of the tank
and as the water cools it drops to the bottom

[bazx]

this has worked so well i am going to stick with this for a while

in this image you can see the loaded temps/pressure of the first stage

13bar / -50

this is by far the strongest first stage i have ever built and to say i am happy with it
would be an understatement

(the load is coming from a X6800@4900mhz/1.8vcore 32m run (more of this later))

[gosmeyer]

this has worked so well i am going to stick with this for a while

Glad you found what you were looking for
What did the wife say about the hole in the wall or has she seen it yet?

[Freddie123]

Looks like its only a shed, he should be ok :P

[bazx]

hehe yes it my shed




i was unhappy with the vapo type dsh on the second stage so hooked two fans up
to a larger unit

[bazx]

[bazx]

[bazx]

before i went ahead and made up the gpu line set i wanted to load test
the evap

evap used in this load test is one of little devils chilly clones

o/s is just my desktop vista

the cpu is a X6800 @ 4900mhz

m/b asus commando

vcore is 1.8v vmod and droop tested with meter

load is super Pi 32m

T1 is temp taken with the temp prob taped to the outside of the evap

T2 is temp taken with the temp prob taped to the suction return about 10 mm away from the evap

full size image


http://www.benchtec.co.uk/1/cascade5...e/DSC00815.JPG

[krullet]

really nice temps bazx..

dam this build is a work of art, it soo nice, as are all of your projects

[Dualist]

How come you're not running two instances of super pi to fully load the chip.?

[Clemmaster]

32mo doesn't load the chip like TAT or Prime do anyway.

What where the results with SLHX to make people be aware about their unefficiency on cascaded systems? (:P). Your first stage is powerfull with this subcooler (I think it's more a condenser according to the size of the "air-condenser" and the discharge pressure, but anyway).

You should try LBP compressor (CAJ2464Z, for example) to make this wonder unit work as good as it looks nice

[bazx]

thanks krullet

How come you're not running two instances of super pi to fully load the chip.?

in this case 32m is just a tool for me to compare this unit to others i have built
and have found that just running a 32m @ 1.8v will give more then enough load
and most importantly for me a variable load
Also as i build these units for benching
I know that if the unit can pass a 32m
At the set mhz/voltage it will also be able to get thro a 3D06 cpu test



you should try it with your 2 stage

@Clemmaster there was no improvement with slhx it was just the same as without

so no gain and i removed it

with what i have learned so far i now want to completely water cool the first stage

[Thickbrit]

Pushing the boundaries of accepted phase knowledge in his ceaseless quest for freezing perfection,my mate Bazx.Rock on matey.

[runmc]

You are to be admired bazx Let's get this back to the top where it belongs

[n00b 0f l337]

No doubt Ron!
After reading thru some old threads as well as some other hvac information, I see some watercooled HX's mentioned, but I'm suprised we never really adapted to this, maybe because it is a little bit of a hassle, but the gains seem quite great! Especially on autocascades where you really want all possible refrigerant that can be condensed, condensed, and saturating as much higher pressure refrigerants as possible!
Only thing is copper prices are higher and such, so I'm thinking about trying this with some plate heat exchangers.

[bazx]

thanks lads

i need to put up some more images of the unit as it is now finished and installed on my benching table

i have gained a great deal from this build and i have a feeling it will become a 3 stage next year

the shut off hand valves have work like a charm as well

i just close the liquid line with the unit running wait 1 min and close the suction return

turn off the unit and remove the line set with no charge lost

[Pete]

I love bazx work, it's mind blowing and i can sit and look till the cows come home. It's shear artwork

Bazx winter time that watercooled HX could be fun when we get some sub ambiants and snow!

[bazx]

I love bazx work, it's mind blowing and i can sit and look till the cows come home. It's shear artwork

Bazx winter time that watercooled HX could be fun when we get some sub ambiants and snow!

hehe i have been thinking about that

i will need so anti freez

[Pete]

hehe i have been thinking about that

i will need so anti freez

Just a few gallons of the stuf yeah! Also insulate it all.

Probs be steaming on the return outside.

Not long till it goes chilly. Might sell lower HX temp

[bazx]

Started running some load tests with cascade 5 and a 8800GTX kindly lent by

Raja

Thanks man i owe ya one

In the tests i was only looking at load on the unit not bench results

The card was over clocked to 902 core @ 1.55v using riva

The cpu just ticking over @ 4.8

Load is future mark 3D03 which it completed fine

The cascade evap temp (measured 10mm from the evap on the suction return) did not move more then 1 deg during load and sat around -104/103

o/s vista but for the next set I will put xp on


here are 2x 15 sec movie clips

http://www.benchtec.co.uk/1/cascade5/working/movie/


some images

http://www.benchtec.co.uk/1/cascade5/working/still/

[Pete]

Bazx you one lucky guy. Can i be your son or have you babys!

Lovely setup, clock in backgorund is nice!

[Polizei]

I love that bench/works area. Very nice.

Awesome temps

[Thickbrit]

Nice going mate,lets hope you have the other one ready for these 2 ultra's by xmas,lol.