CryoStar Sli and CPU evaporators by Gosmeyer

[Raja@ASUS]

that particular side on seal will be difficult as it stands, though I see no real alternative for an sli setup, the top card evap has to be side on. I think seal string or some cheap play dough can be used by the end user to create a temporary seal at the suction/feed line entry/exit point. My order is being placed as I type this message...

I think I will go for one angled evap (top card/slot) and one straight evap for my sli kits..

Do you guys pan on updating mountings for upcoming cards?

Also if you could drill rd 600 holes in my 2 mounts as well as 8800 ones that would be great...(if possible)

Regards
Raja

[runmc]

I mean will you be providing that, otherwise I'd have to basically jam some insulation in that hole, also heatshrink over sleeve braid on the flex line insulation has no way to actually connect to the mount and create an air tight seal.

I suppose a collar could be added on the gpu mount enclosure that has the tubes entering the back, to attach Armaflex tape to. If you have a full piece of armaflex tube insulation it will press against the enclosure. Adding some Armaflex tape would keep it air tight. The evaporator that has side suction will need to have some Armaflex tape wrapped around it. I will include the tape in those kits. Thanks for the suggestion Adam

[n00b 0f l337]

No problemo Ron, just sorta looking out for problems. I wouldnt want to armaflex tape onto the CPU evap though otherwise that might it so the mount and such cannot freely rotate.

[runmc]

No problemo Ron, just sorta looking out for problems. I wouldnt want to armaflex tape onto the CPU evap though otherwise that might it so the mount and such cannot freely rotate.

I wouldn't suggest putting on the tape until you have the mounting done. That would defeat the purpose of making the mounting able to rotate freely on the evaporator.

[LardArse]

I like the whole enclosure and mounting, it's quite beautfiul and definitely easy as pie to use.



To insulate is very easy. As brought up , that tiny air space of captube line and suction line and tiny bit of space around there, all I had to do was to cut a size3d armaflex, and then squezzed it into the space and it would squeeze wrap and do away with the empty space.

Other thing, since this was first a CPU mount kit, there is a small step from evap base to the foam enclosure such that it would clear the tall capacitors on the mobo. for GPU, this means air space again, but, a layer of foam tape just about tackles this "step" so air space is easily done away with foam tape. Why not do away with the "step" by cutting into the foam enclosure more to end up with copper base totally level with foam base? Well , maybe not , when you think about it, you never know if you wanna clear some ram sinks on the GPU, or if you may wanna thick insulation on the suction line which the "Step" provides space for, or if there might be bigger bumps to clear in future GPUs.


Now, foam tape, to seal the outer perimeter somemore, this should be a pretty tight seal.



If it works good for me in my kind of climate, you shouldn't worry

Just a little sad I couldn't bench on first assembly as I found my cap tube too long so have to trim and vaccuum and reset, since I'm not on advanced CPEVs like you guys But really, the amount of effort involved to insulate and mount the new evap is so minimal, thanks to Runny's & Gosmeyer's simple but effective design Tis much lighter than I thought!

The test ain't over till I start to bench with it Runny, so cross your fingers!

[LittleDevil]

Nice mount, we are waiting for tests and temps

Good luck LardArse!

regards

[Supertim0r]

nice setup, waiting final results
GL

[Fhqwhgads6680]

hey Sham! Nice mount and looking forward to your reults! GL!

[runmc]

Any suggestions for improvement are appreciated Lardy Do you have the evaporator on a Single Stage or a cascade?

Eric is already adding a lip on the insulation side of the enclosure for tape or shrink wrap to hold onto.

All we're looking for are World Records.

[kayl]

ncie work shamio, wouldn’t expect any less from ya self
Those blocks attached to 2 cascades i suspect? Look forward to results

[dinos22]

hey sham

any reason for the massive copper heatsink on this chip (does it affect OCs if you use poorer cooling on it

[Raja@ASUS]

that chip runs hot, afaik it is only a display/composition device....

regards
Raja

[LardArse]

hey sham

any reason for the massive copper heatsink on this chip (does it affect OCs if you use poorer cooling on it

well big is better than small, thats reason enough for me
warm will be fine , it shouldn't get hot with cascade. you can even vmod this chip but hell if it does make a difference

What about the rest of the privilleged Cryostarers? Any results? I have much work to do now, though the temptation to play with Cryostar is very distracting.

[Brettbeck]

What about the rest of the privilleged Cryostarers? Any results? I have much work to do now, though the temptation to play with Cryostar is very distracting.

I think you're the only one with one at the moment Sham !

[dinos22]

well big is better than small, thats reason enough for me
warm will be fine , it shouldn't get hot with cascade. you can even vmod this chip but hell if it does make a difference
.

ooooooh i like the wink after the sentence....do tell i know what you mean though

[LardArse]

hey guiys sorry have not done up cap tube adjustment yet, too busy this week, hopefully maybe can squeeze some time in or if not its next week!

[LittleDevil]

@SoddemFX: Any results or pics?

regards

[wdrzal]

that doesn't matter much gosmeyer, the most important surface area of the evap should be flooded at all time imo.

Not flooded, Keeping ALL surfaces wetted is best,but not flooded.The refrigerant needs room to expand.......400:1 to 1700:1 depending on refrigerant.......well not exactly as part of the expansion is what increases the velocity (700fpm horizontal/1400 fpm vertical) it does need increasing a bit,but not too too much. See how different refrigerants affect velocity so piping along with evaporator passages needs sized correctly.

I believe all this accumulator stuff is not needed, guessit depend on piping and how well total package is designed.people are over charging,or the suction velocity is way to high or both. Way to much refrigerant is boiling off in the suction line,and in some cases I see uninsulated lines completely iced along with accumulators even a portion of the compressor . If thats the case I bet a portion of the evap is completely flooded.

All this mixing of gases and no one has any idea of sub-cooling or superheat which are 2 very important things you need to know....... If you don't even know the basics or even have a way to reproduce the mix ,as most don't.How can you move forward?????? Even if you made a specific mix and had a P/T chart made,I,m betting most of the Low temp gases only make the "no load" number look good but does nothing for "loaded temps" that count. If fact some of the gases aren't condensing @ all or just a very very little in the 2 phase flow in single stages and making the cap tube or other metering device less effective thus the evap. They are just taking up the precious little real estate inside a evap where a highly efficient refrigerant should be adsorbing as much heat as possible........

I'm getting a itch to build a rig to determine for myself ........Doing 2 things first........1; building something close to the norm and produce results as most are, then measuring parameters most can't measure............................2; Then approach the problem with a clean white sheet analysis,seeing if a better approach is possible whether its just a improvement of the current path or a radical new approach forgetting everything I read & seen on XS .With the sole intent of keeping current loads as low as possible temperature wise ...........All awhile keeping in mind it has to be done on a reasonable budget.

Of course this is dependent on my available time & Energy, but I,m getting a itch to be "Noob of 1338" I must be going . No promises and No time schedule as work both professional and private has a large back log from taking 5 years off to care for my parents(98 to 03)when they needed me,plus my own recent health issues.

Please don't start asking every week or month if I started anything Yet,I'll be the first to let you know when I do,but will probable be to wards fall and over the winter. I have a new very efficient central air/w heat pump to install at my home first.It will be using a 2 speed hermetic scroll compressor.Low speed on not so hot or cold days and high speed when full output is needed. Maybe a 2 speed low temp compressor is needed for phase ??????? or a special custom proprietary built compressor all together?????? who knows, their a lot of possibilities and different ways of making things cold ,other than whats being done on XS. .

[[XC] gomeler]

I would honestly love to see what results you can create walt! Two-speed compressors would be rather nice for large-load swings, cascade comes to mind in particular.

[gosmeyer]

Start anything yet Walt?

Sorry, couldn't help myself
I say go for it! You know me, I like outside the box

[runmc]

Not flooded, Keeping ALL surfaces wetted is best,but not flooded.The refrigerant needs room to expand.......400:1 to 1700:1 depending on refrigerant.......well not exactly as part of the expansion is what increases the velocity (700fpm horizontal/1400 fpm vertical) it does need increasing a bit,but not too too much. See how different refrigerants affect velocity so piping along with evaporator passages needs sized correctly.

I believe all this accumulator stuff is not needed, guessit depend on piping and how well total package is designed.people are over charging,or the suction velocity is way to high or both. Way to much refrigerant is boiling off in the suction line,and in some cases I see uninsulated lines completely iced along with accumulators even a portion of the compressor . If thats the case I bet a portion of the evap is completely flooded.

All this mixing of gases and no one has any idea of sub-cooling or superheat which are 2 very important things you need to know....... If you don't even know the basics or even have a way to reproduce the mix ,as most don't.How can you move forward?????? Even if you made a specific mix and had a P/T chart made,I,m betting most of the Low temp gases only make the "no load" number look good but does nothing for "loaded temps" that count. If fact some of the gases aren't condensing @ all or just a very very little in the 2 phase flow in single stages and making the cap tube or other metering device less effective thus the evap. They are just taking up the precious little real estate inside a evap where a highly efficient refrigerant should be adsorbing as much heat as possible........

I'm getting a itch to build a rig to determine for myself ........Doing 2 things first........1; building something close to the norm and produce results as most are, then measuring parameters most can't measure............................2; Then approach the problem with a clean white sheet analysis,seeing if a better approach is possible whether its just a improvement of the current path or a radical new approach forgetting everything I read & seen on XS .With the sole intent of keeping current loads as low as possible temperature wise ...........All awhile keeping in mind it has to be done on a reasonable budget.

Of course this is dependent on my available time & Energy, but I,m getting a itch to be "Noob of 1338" I must be going . No promises and No time schedule as work both professional and private has a large back log from taking 5 years off to care for my parents(98 to 03)when they needed me,plus my own recent health issues.

Please don't start asking every week or month if I started anything Yet,I'll be the first to let you know when I do,but will probable be to wards fall and over the winter. I have a new very efficient central air/w heat pump to install at my home first.It will be using a 2 speed hermetic scroll compressor.Low speed on not so hot or cold days and high speed when full output is needed. Maybe a 2 speed low temp compressor is needed for phase ??????? or a special custom proprietary built compressor all together?????? who knows, their a lot of possibilities and different ways of making things cold ,other than whats being done on XS. .

Quoted for evidence

[Unknown_road]

walt: ron know's what I mean with flooded, we've use that term for years now.

the reason why we have flooding is; 1. large variations in load and 2. very small internal volume of the evap.

most important is that a unit can hold every load a cpu can put out. So cap tube sizing and refrigerant amount in the system is mostly tuned to maximum load.

if the cpu returns to idle, the load isn't enough to boil off all the refrigerant. but the amount of refrigerant in the system is large enough to completly fill the evap and part of the suction line. an accumulator is an easy way to prevent damage to the compressor and low idle temps aren't that important.

is that mixing of gasses comment for me? if so, you have no idea how I work so stop bashing my work else don't mind this comment. In a unit I made with my own gas mixture is was able to get it to hold a quad core without any problem and there was almost no floodback when installed on a c2d @ idle . And most important, load temps are better in comparison to r507 (I tried r507 in the same unit and it was 5 degrees warmer).

btw if you don't want people asking how the unit is progressing, build it before you mention it

[n00b 0f l337]

Looking better and better, so what are the external dimensions of the evap?

[LittleDevil]

Anything new about performance?

Regards

[Fhqwhgads6680]

looking forward to some results those evaps are beautiful!