2-Stager unit

1st stage

• Compressor: LG NP407P (25,000Btu/h; 40.7cc/rev)
• Condenser: 1.9kW + Fan
• HSP Service Valve: Schrader
• HSP Manometer: Wigam ML60/18C4FA/A8
• Reciever: Frigomec 1.6l + Alco rotalock valve SR1-WDB
• Filterdrier: Copper 50gr
• Expansion Device: Alco TXV TI-SW (w/ TIO-01)
• Heat Exchanger: Harle compact brazed plate HX B3-12A (12pl)
• LSP Service Valve: Schrader
• LSP Manometer: Wigam ML60/38C4FA/A8
• Refrigerant: R404a

2nd stage

• Compressor: LG NP362P (21,900Btu/h; 36.2cc/rev)
• Oil Separator: ShineYear Automatic
• HSP Service Valve: Schrader
• HSP Manometer: Wigam ML60/18C4FA/A8
• Filterdrier: Copper 50gr
• Expansion Device: Honeywell CPEV AEL1
• LSP Service Valve: Schrader
• LSP Manometer: Wigam ML60/38C4FA/A8
• Refrigerant: R1150 or R1150/R50/R290 blended
• Others: Desuperheater + Fan, Cold_ice's Evap + succion line, and of course something for safety.

Today, I've painted the condenser in blue and brazed few things as well.

http://img90.imageshack.us/img90/8381/45kbtusmj1.jpg

http://img90.imageshack.us/img90/9762/45kbtutpc1.jpg

http://img156.imageshack.us/img156/7428/45kbtuuff5.jpg

http://img148.imageshack.us/img148/876/45kbtuvwo3.jpg

http://img148.imageshack.us/img148/1471/45kbtuwrr0.jpg

http://img148.imageshack.us/img148/678/45kbtuxam3.jpg

http://img148.imageshack.us/img148/6933/45kbtuzex5.jpg

http://img148.imageshack.us/img148/2130/45kbtuaahd3.jpg

More to come. :)

Looks good so far. Specs?

Those compressors look fat :D

Looks to be a couple LG NP362P 220V 50Hz R407C Compressors

Cooling Capacity 50/60 Hz
Btu/hr : 21800/22000
Watts : 6388/6447

Motor Input
Watts : 2096/2135

Second to last on the page

nice work before, i see another killer cascade in the making ;)

A remarkable improvement on cosmetics to the 3 stager mate. Your enjoying these builds arnt you. hehe

Those are some massive compressors indeed.

Thanks guys :)

Specifications of the unit.

1st stage
LG NP407P (23,400Btu/h; 40.7cc/rev)
1.9kW condenser + Fan
Schrader HSP
Wigam ML60/18C4FA/A8 gauge
Frigomec 1.6l reciever + Alco rotalock valve SR1-WDB
Copper filterdrier 50gr
Alco TXV TI-SW (w/ TIO-01)
Harle compact brazed plate HX B3-12A (12pl)
Schrader LSP
Wigam ML60/38C4FA/A8 gauge
R290 or R404a

2nd stage
LG NP362P (21,800Btu/h; 37.2cc/rev)
Desuperheater + Fan
ShineYear automatic oil separator
Schrader HSP
Wigam ML60/18C4FA/A8 gauge
Copper filterdrier 50gr
Honeywell CPEV AEL1
Cold_ice's Evap + succion line
2 * Schrader LSP
Wigam ML60/38C4FA/A8 gauge
R1150 or R1150/R50/R290 blended
(and of course something for safety)

nice start before :)

can you please post a pic from the Harle compact brazed plate HX B3-12A (12pl)?

thanks

Thx ;)

Here's the HX. Dunno if flaring is a good option but I want to try it instead of brazing.

http://img98.imageshack.us/img98/543/45kbtuaggq2.jpg

Cascade as it looks today:

http://img98.imageshack.us/img98/9195/45kbtuabyg5.jpg

http://img98.imageshack.us/img98/999/45kbtuactv0.jpg

http://img98.imageshack.us/img98/9511/45kbtuadxf9.jpg

http://img98.imageshack.us/img98/1517/45kbtuaema3.jpg

http://img98.imageshack.us/img98/1379/45kbtuafrj1.jpg

Very good Before,. Nice size Desuperheater there man.

Looking good! Nice condensers!

We all know you will get the results your after.
Time to braze.

thats going to a beast when its running. How come you didnt want to braze the plate HX? i personally like to have as many joins brazed.

maybe because a brazed plate hx is kind of messy looking, where as a flare will keep it looking neat :shrug:

Thank you guys :)

Quote:

---

Originally Posted by TopherTony

maybe because a brazed plate hx is kind of messy looking, where as a flare will keep it looking neat :shrug:

---

Right :D It will save some silver as well :p: BTW because of space constraints, it might be required to braze pipes... :cat:

In fact, space is difficult to use now; the unit is very compact. It more and more looks like a tower. :yepp:

ATM I'm hesitating about the way to connect the HX... As an Evaporator? Or a Condenser? Does it really matter? The one installed between 1st and 2nd stages of my 3 stager is connected as a condenser and it works fairly good. In fact, I think the HX is still an evaporator for the high stage and a condenser for the low one. BTW actual HX has 2 different sizes for the connections while the other having 4 equivalent connections...

Connect it like its drawed at the second picture. "Refrigerant"= First Stage
"Water"= Second Stage.

either way will work. i dont see a benefit from one over the other in the long run. Basically all you are doing is switching the sides?

Make sure that the low stage inlet is on the bottom because when it is evaporating the vapor has to rise. The highstage will be condensing so it's inlet will have to be on the top connection so when it condenses, the liquid will the flow downward. If you do it the opposite way, it wont work correctly.

Evap lower stage liquid in the bottom and then out the top, and then with gravity the gaseous upper stage goes from top to bottom and condenses :)

1st stage on the 2 big connector (inlet at the bottom, outlet at the top) and second one on the others (inlet a the top)

I think enough people said that now :D ...

@all: Thank you :toast:

@Clem: You're right... ;)

My question was a bit stupid as first stage refrigerant needs to go from bottom to top (liquid to gaz) while second stage refrigerant needing to go from top to bottom (gaz to liquid)... Additionaly, tighter connections are obviously to be used for high side pressure. Contrarily, larger connections are to be used for low side pressure. :)

Shame on me for not thinking before writing. :D

Nice going before :) What other cascades did you make? I am having not so easy time finding it :) Yup... I've been out of loop for too long :P
Looking forward to the monster result... 2hp eh? (cringe)

Here's my 3 stager mate ;) A bit ugly but powerful... http://www.xtremesystems.org/forums/...d.php?t=153348

Actual cascade has clearly a better looking and good power as well... not 2hp but about 6hp; and both compressors have about 40cc/rev displacement.

CPEV has been brazed to captube side and liquid line from HX is ready for brazing. :)

http://img263.imageshack.us/img263/37/45kbtuahyo4.jpg

http://img263.imageshack.us/img263/9558/45kbtuaimk9.jpg

http://img263.imageshack.us/img263/1254/45kbtuakjp7.jpg

http://img263.imageshack.us/img263/2128/45kbtualta6.jpg

Looks for sure better than 3 stager ..way better :D .

Only condensor is bit "life tired" I think hehe :D .

Rotaries are ... monsterous :D .

What TXV + what nozzle You use ?

Waiting to see good temps mine friend :up: .

Regards
Peter

Don't you like it painted? :D

TXV is a Alco TI-SW with a TIO-01

Today, I've prepared 1st stage succion line, and adjusted TXV outlet. Then I've brazed them to the HX along with 2nd stage liquid line side at the same time.

Guess I'll be able to finish the work tomorrow and start testing.

Brazing work is finished. It remains leak testing, wiring and insulating. :)

http://img222.imageshack.us/img222/3412/45kbtuamtq9.jpg

http://img222.imageshack.us/img222/2527/45kbtuankx9.jpg

http://img148.imageshack.us/img148/1116/45kbtuaowf3.jpg

http://img148.imageshack.us/img148/3665/45kbtuapqh5.jpg

http://img148.imageshack.us/img148/6125/45kbtuaquc0.jpg

Very nice :-)

1/2" Insulation? That all you've found you need?

@Luke: Thx mate :)

@n00b: I get several different insulation materials. :)

Apparently there's no leak so I've started insulating. :) Did few tests with R290, and both stages look to work.

http://img80.imageshack.us/img80/7016/45kbtuaukm0.jpg

http://img80.imageshack.us/img80/8137/45kbtuarjy7.jpg

http://img80.imageshack.us/img80/8946/45kbtuasfq6.jpg

http://img80.imageshack.us/img80/8472/45kbtuatza8.jpg

http://img80.imageshack.us/img80/3190/45kbtuavhx2.jpg

http://img80.imageshack.us/img80/1519/45kbtuawik2.jpg

http://img80.imageshack.us/img80/1839/45kbtuaxxk0.jpg

http://img80.imageshack.us/img80/3904/45kbtuayji6.jpg

very nice before, this has to be your cleanest unit yet mate, well done
When you build you don’t much around do you :toast2:

that is AMAZING!! Really quite clean. Even the insulation is done expertly. Hats off to you :up:

Very clean indeed.

very nice work mate, cant wait to see some results of the loads this unit can hold and temps, all i can say is very clean workmanship, well done on a good job.

Thank you so much guys :toast:

Insulation isn't finished yet... BTW I couldn't resist to test 1st stage a bit.

T1 = evap
T2 = suction

Difference between 2 temps is a bit high IMO; BTW TXV is to used with R404a instead of R290 and insulation is messy.

http://img98.imageshack.us/img98/1324/45kbtuazai2.jpg

http://img139.imageshack.us/img139/535/45kbtubajg0.jpg

Quick movie http://www.wideo.fr/video/iLyROoaftqXk.html...

I've performed some tests with R290 into 1st stage and R1150 into the second one.

2nd stage went down to -112C unloaded with CPEV almost shut... Not really good ATM. :rolleyes:

BTW insulation is still in its early stages and thus it might explains why the temp is so "hot".

Anyway, dunno if the actual captube (2mm; 1.5m) is good or not to properly use the CPEV.

Really nice unit my friend :up:

What was first stage temps when you run secoond stage compressor?

Quote:

---

Anyway, dunno if the actual captube (2mm; 1.5m) is good or not to properly use the CPEV.

---

It is but you will have some fun with CPEV, before you will set it.:)

Best Regards

what are the low side pressures on the cpev?

Quote:

---

Originally Posted by LittleDevil

Really nice unit my friend :up:

What was first stage temps when you run secoond stage compressor?

It is but you will have some fun with CPEV, before you will set it.:)

Best Regards

---

Thanks buddy :toast:

First stage temps are very bad while 2nd stage has been running:

About -50C HX input to -40C output... very unstable.

Coldest temps so far were -67C HX inlet / -60C outlet unloaded. BTW the matter is, the TEV must be used with R404a and unfortunately, I've ran out of it. I only have some R290 ATM. I hardly need some R404a. :p:

Quote:

---

Originally Posted by TopherTony

what are the low side pressures on the cpev?

---

Lowest one so far was 0.6bar.

hé ben !!

ça me trou le cul ton savoir faire xav !!!

CPEV is nothing more than mechanical device that reacts to pressure. I don't see why it can't be used with other refrigerants. I am using one now on mini-c and have no issues with 4 different gases I tried on it with vastly different properties. I presume you are using it on first stage?

CPEV deals with pressures an viscosity. Both of them depend on the gas and the way the CPEV work will change

I'm shure he wants to write TXV....

Quote:

---

Originally Posted by noobzed

hé ben !!

ça me trou le cul ton savoir faire xav !!!

---

Merci Seb :toast:

Quote:

---

Originally Posted by Moc

I'm shure he wants to write TXV....

---

:up: RIGHT! Corrected... :p:

Wanna see how fast 2nd stage goes down? :D

http://www.wideo.fr/video/iLyROoaft1Dr.html

Heh, nice. Guess the load tuning for unit is quite good already :) (one thing I noticed about cascade 2nd stage, typically higher load handling machines pull down faster).

Off course

Nice video!

Managed to fix the first stage already?

Not yet ;) I've ordered 2kg of R404a to Kaeltetechnik-Shop (cold_ice's shop). Hopefully, this refrigerant will fix the matter.

I'm performing the very first tests over a clocked CPU. Not too much ATM because I've picked up the wrong E6850 :D Nevermind.

Evaporating temp is -106.5C (0.86bar) during Spi32M at 500x9 @1.72v.

Not bad, but not good enough. CPEV is at its lowest available pressure. I'll wait for the R404a first, but it might be interesting to add some 0.9mm captude. :)

Quote:

---

Originally Posted by before

but it might be interesting to add some 0.9mm captude. :)

---

Uhmmm BEFORE or after? (I couldn't help it... :P)

hehe :D

between actual 2mm captube and evap ;)

It runs quite good :)

I got this E6850 up to 540x9 @1.72v (max FSB is lower than 550) and the temp didn't really move... in fact, it was a bit colder at the end thx to a lower ambient. :)

http://img221.imageshack.us/img221/6776/45kbtubbrk8.jpg

http://img221.imageshack.us/img221/695/45kbtubcdq0.jpg

http://img221.imageshack.us/img221/8...1m12672ns5.png

http://img221.imageshack.us/img221/4...0m47062bp3.png

http://img221.imageshack.us/img221/5...0m34875yj3.png

http://img221.imageshack.us/img221/1...0m24219ae3.png

I'm gonna move for a better chip in order to achieve higher loads. :)

great pics before. Look forward to a betetr chip under there man.

Load is well held; evap pressure stays under 1bar. :)

http://img152.imageshack.us/img152/2...9m57843vk5.png

Congrats Xavier.
what are the dimension of the suction line ID and OD ?
and the SL insulation tube wall and ID ?
sorry for the questions ,but seem you dont have condensation.:D ;)

I've switched to R404a and temps are now quite stables. BTW they are very very cold; I mean HX inlet temp is about -70C loaded!!! Less than 0.3bar... :eek:

I don't have exact HX outlet temp in mind, but delta between both is a bit high in my opinion.

Anyway, amount of refrigerant is good... I mean, adding more doesn't increase HSP but only static's.

IMHO, that's not good.

Additionnaly, I've added 3m of 0.9mm captube to the 1.5m of 2mm captube already installed between CPEV and evap in 2nd stage. Pressure has significantly decreased... from 0.6bar (-112C) with CPEV completely shut to 0.25bar (-124C) with CPEV completely open. :)

Taking speedfan as a temperature measurement, CPU is now clearly colder:
E6850 at 5100MHz @1.73v
Before: -92C idle / -75C SuperPI 32M
After: -106C idle / -90C SuperPI 32M !! (similar to my 3-stager temps with R1150 into 3rd stage)

BTW, I'll remove a bit of captube to properly use the CPEV... :D

Quote:

---

Originally Posted by Marvin

Congrats Xavier.
what are the dimension of the suction line ID and OD ?
and the SL insulation tube wall and ID ?
sorry for the questions ,but seem you dont have condensation.:D ;)

---

Thanks Marvin :toast:

Succion lines are made of 14/16mm copper pipes to perfectly fit compressors succion connection.

What do you mean by "tube wall"? Insulation thickness? I think it's 13mm. ;)

Nice, Way to tweek it.

Thank you ;)

I've removed 1.9m of 2nd stage 0.9mm captube.

Temp is now -109C with CPEV fully opened... :D Obviously, closing it decreases the temp.

http://img521.imageshack.us/img521/6686/45kbtubdgo2.jpg

It has been a long time since I've last updated this thread...

So here are some results from what I did recently.

-118C unloaded

-112C Super PI 32M with QX9650 5.49GHz @1.90v

http://img146.imageshack.us/img146/2...8m59079xt6.png

-107.5C 3DMark 2005 CPU tests with QX9650 5.46GHz @1.944v (OMG, these tests are strong! :p: )

http://img296.imageshack.us/img296/3...0532230fk7.png

So; as you can see, it allows some good results. :p:

BTW I still have a problem with flaring the oil return captube. It looks to leak a bit everytimes I unmount and then remount it. Will probably braze a simple captube here; but it pisses me off to have bought a special captube with flaring nuts and not using it. :)

Anyway; what you guys honestly think about these temperatures? Those are pretty cold, that's true, but can I expect less?

I'm not sure about the good functioning of the second stage CPEV... Maybe I'll remove it and braze a captube there.

I've removed the CPEV from 2nd stage, and try to get a good amount of R1150 in order to achieve some decent temperatures. (CPEV is now used as a 1st stage expansion metric for my 3-stager)

First tries weren't very good cause without CPEV I've lost about 10C+, pressure for pressure, load for load.

So, I've though that it was time to remove the remaining captube which was used along with the CPEV (~2m of 2mm + ~2.9m of 0.9mm). Was thinking about 3.5 to 3.6m of 0.9mm as a replacement.

But today morning, before changing the captube, I've decided to go for a bit less of R1150... and I finally got pretty nice loaded temperatures... at about 5.6GHz using 1.97vCORE for Spi 32M, top/'hotter' part of the evaporator shown -103.5C with an evap pressure of 0.6bar which means -112C.

Well, that's nearly the same than it was with the CPEV installed, that's damn good considering the load.

Click the thumbnail to view full-size image
http://www.ixtremtek.com/images/DFIX...1M@9,234sa.png http://www.ixtremtek.com/images/DFIX...8m48,218sa.png

Quote:

---

Originally Posted by before

I finally got pretty nice loaded temperatures... at about 5.6GHz using 1.97vCORE for Spi 32M, top/'hotter' part of the evaporator shown -103.5C with an evap pressure of 0.6bar which means -112C.

---

I think "pretty nice" is an understatement:up:

0.6 bar? As in above atmospheric? Shouldnt that be warmer then the BP at 1 atm no?

Awesome job before :up:

Nice to finally see a cascade tested with a real load :yepp:

Thanks guys :toast:

Quote:

---

Originally Posted by n00b 0f l337

0.6 bar? As in above atmospheric? Shouldnt that be warmer then the BP at 1 atm no?

---

Not sure if I've clrearly understood what you said. :(

Here's what I'm talking about.

http://img120.imageshack.us/img120/3...esr1150hq0.png

As for the observations, -112C evaporating temperature (0.6bar) to -103.5C evaporator top (K-type probe) is quite consistent. I mean, exit of the evaporator has to be hotter than evaporating temperature... obviously. :p: About 10C more is not that much for actual load IMHO, isn't it?

Nice results there before, now all you need is that golden 6Gig chip to put under this cooling, but even so the 5.6Gig you are getting is outstanding and it shows this unit holds good temps with 1.97 on the core when running SP, can you run a Wrime 1024 and show us some loaded temps please.

Well done mate outstanding.

Quote:

---

Originally Posted by before

About 10C more is not that much for actual load IMHO, isn't it?

---

No you don't have to worry about it, unless it has effect on the temperature of the base of the evap :D

5600 on a 2 stage for 32M! :eek:

Thanks guys :toast:

I've decided to change the 2nd stage captube...yeah I know, I've to stop myself making mods everytime :D

In fact, taking into account the lenght of 0.9mm captube used by two XS builders for their cascades, I've performed a quick extrapolation to get a correspondance table for captube adjustment relativily to compressor power (rotary R407C compressor). Dunno if it makes sense or not...

BTW, I've brazed a piece of 3.8m. Here are the first results. :)

http://img236.imageshack.us/img236/8487/capi09ep2.jpg

Windows idle: -114.1C evap ; -62.4C HX in

http://www.ixtremtek.com/images/Asus...o/-114,1Ca.jpg

Loading Spi 32M at 5535MHz (582.6FSBx9.5) @1.82v: -108.2C evap ;-56.1C HX out; HP = 7bars

http://www.ixtremtek.com/images/Asus...o/-108,2Ca.jpg
http://www.ixtremtek.com/images/Asus...o/7barsHPa.jpg

Great :up: Can i ask you what is your room temp?

Regards

That really can't be good for the first stage compressor :(

Quote:

---

Originally Posted by LittleDevil

Great :up: Can i ask you what is your room temp?

Regards

---

Thanks my friend :toast:

Temp was about 18C to 20C I guess. (Outside temp was 24C and the cascade is next to the garage main door which was wide opened)

Quote:

---

Originally Posted by n00b 0f l337

That really can't be good for the first stage compressor :(

---

Right. I've to adjust the amount of R1150 and then tune the first stage TXV to match the need. :)

Adjusting R1150 amount, and retuning TXV.

Unloaded: -118.0C evap (-57.1C HX out)

http://www.ixtremtek.com/images/AsusCommando/-118Ca.jpg

-118C ins't the coldest; but the pic I've taken. Guess -120C or so is highly probable with a bit more time. Ambient temp is 20C.

Also; I'm not looking for the absolute unloaded/unuseable coldest temp to take a pic, but for the right balance between 1st and 2nd stages.

Looking good before, is see you have posted up a chart for cap lengths, would this not change though on the amount of load required to sustain the given temperatures or was these calculations given on unloaded temperatures.

http://img236.imageshack.us/img236/8487/capi09ep2.jpg

Thanks :toast:

Of course the lenght has to be adjusted upon the need. :) BTW I've checked the properties of 2 cascades that shown very good held of load (IIRC 250W+
@ about -107C). Obviously, unloaded temp and loaded one are highly correlated.

Also; this chart doesn't stand to be an 'end of all charts' you know (1st stage is so important as well even if the 1st compressor is also highly predictible knowing the 2nd one), but an approximate table gathering values one might expect to use with R1150 relativily to the 2nd stage compressor power. Assuming a linear relationship (which is pure guess), I would say the lenght is to be taken + or - 0.10m or something.

Quote:

---

Originally Posted by before

Thanks :toast:

Of course the lenght has to be adjusted upon the need. :) BTW I've checked the properties of 2 cascades that shown very good held of load (IIRC 250W+
@ about -107C). Obviously, unloaded temp and loaded one are highly correlated.

Also; this chart doesn't stand to be an 'end of all charts' you know (1st stage is so important as well even if the 1st compressor is also highly predictible knowing the 2nd one), but an approximate table gathering values one might expect to use with R1150 relativily to the 2nd stage compressor power. Assuming a linear relationship (which is pure guess), I would say the lenght is to be taken + or - 0.10m or something.

---

Thanks for the info mate, seeing your builds has been a big help and inspiration.

One more question is there any reason why you use 0.37/0.9mm cap tube instead of 0.31/0.8mm

Thanks so much :)

0.8mm doesn't look like to be suitable with 20kbtu/h+ compressors. At least that's what I guess... I've encountered a matter of very HSP with 0.8mm and the 25kbtu/h compressor used in my 3-stager 1st stage. Captube was 1.9m long, and formerly set for a 10kbtu/h. After moving for the 25kbtu/h beast, captube became a matter.

Under windows with today's tuning.

Idle : -117.8C evap (-60.3C HX out)

http://www.ixtremtek.com/images/Asus...o/-117,8Ca.jpg

Just for fun; final tuning won't be that cold. :)

flares are one shot, second you torque the bolt, if you unmount it you must remake the flare. Technicaly you can re-use a flare 2 more times but it should be avoided.

Sorry buddy... why are you talking about flares? :) Wrong thread?

Quote:

---

Originally Posted by before

It has been a long time since I've last updated this thread...




BTW I still have a problem with flaring the oil return captube. It looks to leak a bit everytimes I unmount and then remount it. Will probably braze a simple captube here; but it pisses me off to have bought a special captube with flaring nuts and not using it. :)

Anyway; what you guys honestly think about these temperatures? Those are pretty cold, that's true, but can I expect less?

I'm not sure about the good functioning of the second stage CPEV... Maybe I'll remove it and braze a captube there.

---

Thats why I talked of flares ;)

Oh ok... that was on January the 12th... I forgot :D

Thanks for your reply anyway :toast:

Ah, that is understandable lol.I just saw this thread at the top and thought it was realitively new.

The old 1.9kW home-repaired condenser is leaking again... I've ordered a Luve 5.2kW one to be used as a replacement. Guess it'll fit much better.

LOL, that's a huge condensor, before. :D I guess from cold_ice? Looking forward to it!

5.2 kw :eek: man You beat me with mine 3.6 kw :D

so what captube on 2nd stage are You using now ?

a big condesor isn`t always good, i made this experience in my huge cascade. you may have to switch one fan off (when possible) or control fan speed.

Just use a fan cut in, cut in at desired max pressure, cut out at a lower one.

Yeah that's a big one; BTW you know, first stage compressor power is 2.4kW while second one is 2.1kW... :D

Quote:

---

Originally Posted by piotres

so what captube on 2nd stage are You using now ?

---

3.5m of 0.9mm... Guess it's a bit small for the capacity of this compressor; but too low pressures make the compressor to be very very hot.

New condenser installed.

Tried it quickly and got -101C CPU socket temp during Spi 32M à 5.8GHz @1.81v... :D That's damn good. I'm gonna setup a Win XP to perform some 3D benchies.

http://www.ixtremtek.com/images/45KbtuBEa.jpg
http://www.ixtremtek.com/images/45KbtuBFa.jpg
http://www.ixtremtek.com/images/45KbtuBGa.jpg

I've played a bit with this cascade. It holds load pretty well: -112C idle, -110C Spi32M (HX @-62C). :)

http://img509.imageshack.us/img509/2...tre1copiev.png

http://img509.imageshack.us/img509/7...g8350copie.jpg

Nice job!! My cascade doing similar temps.

Thx mate. :) Any pics of yours?

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Originally Posted by before

Thx mate. :) Any pics of yours?

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Here you have

Quote:

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Originally Posted by ryba

Here you have

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A 3 stage is a different beast from a 2 stage :p:

Nice temps on the 2 stage though.

And Before:
Also Nice job:up:

Quote:

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Originally Posted by sdumper

A 3 stage is a different beast from a 2 stage :p:

Nice temps on the 2 stage though.

And Before:
Also Nice job:up:

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And where do you see 3 stage?

Quote:

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Originally Posted by ryba

And where do you see 3 stage?

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LMAO your right!!! :rofl:

I thought this was his gross bertha thread :)

hehe wrong thread sdumper ;)

lol :D sdumper, my Grosse Bertha is doing a bit lower temps! Based on socket temp, I'd say about 15C less at equivalent load.

Thanks guys.

Ryba, did you use captubes? If yes, what lengths?

Quote:

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Originally Posted by before

lol :D sdumper, my Grosse Bertha is doing a bit lower temps! Based on socket temp, I'd say about 15C less at equivalent load.

Thanks guys.

Ryba, did you use captubes? If yes, what lengths?

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Captubes... but I don't remember how much :D For sure 0.8mm

lol ok thx anyway :D