I've Run Into A *Slight* Problem :P

[s7e9h3n]

For the first time since I got my autocascade back from Cryo-tek, I let the unit drop down to full capacity before turning my system on - meaning I let it "warm up" for ~1 hour before flipping the switch to the solenoid valve which allows the evap to start cooling. Before tonight, I had basically waited for ~30 minutes max before firing the system up since I ended up getting impatient Seems as if that extra 30 minutes makes quite a LARGE difference in the way the autocascade performs. The temps were only a few degrees colder than usual, but I have a feeling that the gases in the last stage help capacity more than they help temps. Getting back to my adventure: I couldn't for the life of me figure out why I wasn't able to run ANY benches @ all - even at speeds which this setup is able to do on AIR. After doing a quick bit of detective work around the socket area, it quickly became apparent what had happened. First thing I found was condensation on the OUTSIDE of the insulation donut around the evap. Then I discovered one of the most INSANE things I've EVER seen in all my years using phase change.......after feeling around the socket area for cold spots this is what I saw.....







Just in case you haven't figured it out, that's ICE on the OUTSIDE of my mounting board for my mobo. Apparently the autocascade had frozen through a 1/4" cold plate + cpu + the mobo + 3/8+" of closed cell foam + 1/4" of plexi. The whole area underneath to mobo seems to have turned into an ice cube. It's not as if I left the setup runng for an hour without any kind of load from the cpu. I had the voltages maxed out and immediately loaded the cpu as soon as I got into windows. The probe which I have mounted on a cold plate sandwiched between the evap and the cpu was reading ~-108C - ~-110C and those temps didn't even budge when I applied a load to the cpu. In fact, the temps actually were slowly STILL creeping lower Needless to say, I have a feeling that I froze all the caps in the socket area causing every attempt at running a bench to fail It's time I rethink my insulation or get a heater for the mobo. This is nutz yet at the same time it's cool.....literally.

[eva2000]

LOL wanna give me -15C of that coldness for my unit hehe

crazy stuff!

[Jack]

truely bizarre... nice pics nontheless

[quintus]

submerge!

[Comp-Freak]

Seems cold to me

[Mickey Padge]

Brings new meaning to the term "iced out" PC

[Blaster]

heheheeh thats power LOL

[[XC] mysticmerlin]

I would take that off you hands if it is to cold for you!

[BlueAqua]

I know the backplate of my motherboard and my single stage gets cold and forms a few droplets of water but that's only with a single stage at -40C Load. I couldn't imagine at -100C would produce. Time to reinvent a new method of providing that insulation.

[NickS]

HOLY CRAP. That is some SERIOUS phase change, or whatever the hell that beast is.

Nick

[Moonman]

That looks scary if you ask me.

s7e9h3n: I think it's time to look here.

[fatty]

Nice lol ummm thicker neoprene or dialetic grease ???

[Nosfer@tu]

Nice problem to have

[Suffocation]

what the ?!

[n00b 0f l337]

Time to make a nitrogen shell!

[epion2985]

time to submerge the rig in mineral oil like they do with transfomers on power line polls.

[jinu117]

We talked yesterday and my guess is his more partial to nitrogen purging rig. I've kept suggesting lumidol fish tank but oh well
Whatever works right ?

[s7e9h3n]

Thanks for the suggestions . I think I may try some thicker insulation first, and if that doesn't work I may buid an enclosure and purge it with nitrogen. I'm still debating the heater idea as well. This is indeed a very strange problem

[Qkjhfhaiguihfma]

i've always been curious to see if anyone would (has??) used a sealed container and purged with nitrogen or some other gas (argon?).

any more info?

[s7e9h3n]

i've always been curious to see if anyone would (has??) used a sealed container and purged with nitrogen or some other gas (argon?).

any more info?

You can use many gases, but most prefer to use either CO2 or Nitrogen. The only reason I say Nitrogen is because I have an 80 cubic foot tank right here IIRC, there have been a few people that have tried this. The most recent that I've read about it is someone doing it not for DOD phase, but using chilled water. There's a thread @ XS about it, but I don't remember in which section......

[[XC] moddolicous]

I think maybe using thicker insulation and longer stand-offs to accompany that should help. That is pretty crazy though. Thats not and AMD, is it??

[s7e9h3n]

I think maybe using thicker insulation and longer stand-offs to accompany that should help. That is pretty crazy though. Thats not and AMD, is it??

I don't use standoffs on the tray because the mobo gets a better seal with the neoprene. Thicker insulation definately may help. Maybe I should just mount directly onto that piece of insulation sitting below my mobo tray. Yes, that's a 2" thick piece of closed-cell foam

[fatty]

What about a 12v rear mach mount heater ?? should do the job

[s7e9h3n]

What about a 12v rear mach mount heater ?? should do the job

Dumo's sending me a set of Vapo heaters. One for the top of the mobo and one for the bottom. Woot?

[C-BuZz]

Looks a little like my -100c cascade.

10mm thick neoprene at the back of the mobo & a 5mm piece of wood. I checked it about 20min after I shut down the system & it was soaking wet. Didnt even realise heh...

The reason I shut down was because I noticed big droplets of water forming inside the 1st& 2nd memory slot closest to the cpu socket, DFI ultra D.


C-BuZz