Sub zero cooling thread :D

[Jumper118]

Well this thread is for people to show and discuss sub zero cooling. I suppose this thread will also be good for people to ask questions in as well. 

 

Methods of sub zero cooling:

 

Custom loop

This method can go sub zero if you dont use water in your loop or use anti freeze temps ranging from -1c to -30c depending on the weather  

Parts for custom loops:

standard water cooling parts are normally fine for sub zero use, however, you will need to add salt or antifreeze to your water or for even lower temps you can totally replace the water with fluid with a lower melting point like windshield wipe fluid with methyl hydrate.

 

TEC/Peltier 

This method is probably the least deficient way of going sub zero and i would not recommend it at all. tbh you will be lucky to get sub zero.

Single Stage Phase

This method uses a freezer or air conditioning compressor with a single or multiple coldplate/evaps. You can go sub zero at the flick of a switch and as long as you have power you can stay cold for as long as you like! for temps ranging from -10c to -65c.

Some great info on Compressor types, circuit components and refrigerants here:

http://www.carel.com/types-of-compressor

http://www.carel.com/refrigerants

http://www.carel.com/refrigerant-circuit-components

 

In the pictures below the first small unit is rated at 180W load at -20c or 200w load at -15c. I has a very small condenser and a 1/6hp danfoss reciprocating compressor with R507 refrigerant. This unit is from a Vapochill XE-II i can hold a 45nm C2D or Pentium dual core at around -25c on 1.7v. however due to its low capacity, it struggles with Q6600@1.55V+ and Pentium 4 D's at just 1.5V. A cooler like this will set you back £75-180 

 

In the second and third picture show the opposite end of the scale. This is a custom LD cooling 1HP+ single stage rotary unit with a massive 400W load at -50c rating can cool pretty much anything i've thrown at it, FX8320@1.7v, 3930K@1.7v, and Q6600@1.8v holding temps just under -48c. This condenser is much larger and can dissipate 1.5kw of heat. A unit like this new will set you back over £1000, but slightly less powerful units can be had for £400-600.

Dry Ice

This method is great if you live somewhere you can get dice easily, you will need an ln2/dice pot for this but it very cheap in the short term. Great for a weekend benching session! Dry ice is -78.5c, with pot temps around -70c to -65c with no load.

Cascade Phase

This uses 2 or more compressors to create multiple stages of phase cooling. Lecy better be cheap, because these monsters will be pulling 1500W-3000+W from you wall. Also with the standard 2-3 rotatory compressor config you might want to invest in a pair of ear defenders. with temps ranging from -80c to -130c you can get a lot of chips to cold bug with a beast like this. 

 

LN2 

This method is most common for extreme overclockers chasing world records and at -196c you are going to have a hard time finding a colder cooling solution. You are going to need a decent pot for this as well, at these temperatures, the mass of you pot can affect your temps more than the coolant itself. It is also pricey at $1+ per litre and you are going to need a dewar to store it in.

 

LHe

Now you are just showing off . At -269c you are going to have to use the mother of all pots to benefit and with crazy high prices and super high evaporation rates, you are going to have to have some serious $$$$$$$$$ to get this.

 

Insulation materials

 

LET (liquid tape)

Artist Eraser

Foam/Armaflex

Vas ( @TheGamingBarrel )

Paper towels

 

Useful links and forum threads:

http://hwbot.org/

http://overclocking.guide/

 

 

 

Cool stuff:

 

 

 

 

 

 

 

 

 

 

 

 

 

thats its for now. i will add more later.

 

[TheGamingBarrel]

Vas is disgusting mate! literally worst method barring rice. 

 

Going to be fun running your single stage and LN2,hopefully we have enough pots! 

[harrynowl]

1 minute ago, TheGamingBarrel said:

Vas is disgusting mate! literally worst method barring rice. 

You're not expected to lick it off.

[2FA]

@Lays

[TheGamingBarrel]

Just now, harrynowl said:

You're not expected to lick it off.

But dishwasher are SOOOOOO much effort man! 

[harrynowl]

2 minutes ago, TheGamingBarrel said:

But dishwasher are SOOOOOO much effort man! 

An appliance designed to accommodate the laziness of the western world is not effort  

[TheGamingBarrel]

Just now, harrynowl said:

An appliance designed to accommodate the laziness of the western world is not effort  

It is that or the sweet feeling of missing a shot on cs because there is baseline in your mouse pad! 

[CarterDavison]

Not that hard to go under 100c..

[ProKoN]

Sweetest post ever

[TheGamingBarrel]

21 hours ago, CarterDavison said:

Not that hard to go under 100c..

Only LN2, LHe Or some SERIOUS Cascade

[CarterDavison]

1 minute ago, TheGamingBarrel said:

Only LN2, LHe Or some SERIOUS Cascade

No you are completely missing the point.

 

Look at the third answer on the first question..

[Jumper118]

17 minutes ago, CarterDavison said:

No you are completely missing the point.

 

Look at the third answer on the first question..

yes, but if i edit it it messes up the poll because #newforumproblems 

[ProKoN]

after all that hard work....this will be on page 26 soon.

[TheGamingBarrel]

Just now, ProKoN said:

after all that hard work....this will be on page 26 soon.

Page 96* Shows how good most of LTT Are at overclocking doesnt it?

[ProKoN]

1 minute ago, TheGamingBarrel said:

Page 96* Shows how good most of LTT Are at overclocking doesnt it?

I just think positive contributions like this one should get more recognition.  You know maybe a sticky : ) Well hopefully the right person will take notice.

[Jumper118]

4 minutes ago, ProKoN said:

I just think positive contributions like this one should get more recognition.  You know maybe a sticky : ) Well hopefully the right person will take notice.

still more to add yet  there will be plenty to post here at the end of feb as i should have used my pn2 for the first time and will and harry will use ln2 and/or phase as well  

[Lays]

1 minute ago, Jumper118 said:

still more to add yet  there will be plenty to post here at the end of feb as i should have used my pn2 for the first time and will and harry will use ln2 and/or phase as well  

Feel free to use my subzero gpu guide in OP. 

 

Also if you message a mod they'll probably fix the poll for you. 

[ProKoN]

did we lose the guides and tutorials section? or I have i been snorting crack...

[Jumper118]

1 minute ago, ProKoN said:

did we lose the guides and tutorials section? or I have i been snorting crack...

idk its disappeared? 

3 minutes ago, Lays said:

Feel free to use my subzero gpu guide in OP. 

 

Also if you message a mod they'll probably fix the poll for you. 

can you send my the link please  also have you got any dice benching pics i could use in the op

[ProKoN]

2 minutes ago, Jumper118 said:

idk its disappeared? 

 

 

seems to be gone .... prolly just me. if anyone knows, link it plz

 

 

edit- just me noobing out again. its still there, just moved towards the bottom of page.

[Lays]

14 minutes ago, Jumper118 said:

idk its disappeared? 

can you send my the link please  also have you got any dice benching pics i could use in the op

 

 

Here

 

I can send pics later,  can't right now tho. 

[Curufinwe_wins]

Can @W-L give this thread some glue once the guides are done?

 

Also, I wish I had full control over my room's heating, because I'd love to be able to join this by trolling really hard with a -23 C ambient outside temp that I could make my inside temp while I run my computer at idle for those sick 0C gpu temps (I doubt I'd be able to get my cpu down to 0C given it's my large heat poisoning in my loop.)

[Jumper118]

12 minutes ago, Curufinwe_wins said:

Can @W-L give this thread some glue once the guides are done?

 

Also, I wish I had full control over my room's heating, because I'd love to be able to join this by trolling really hard with a -23 C ambient outside temp that I could make my inside temp while I run my computer at idle for those sick 0C gpu temps (I doubt I'd be able to get my cpu down to 0C given it's my large heat poisoning in my loop.)

if you have a window put your rad out the window like the first pic

[Curufinwe_wins]

4 minutes ago, Jumper118 said:

if you have a window put your rad out the window like the first pic

Hard line interior radiators only . Plus I am in an apartment ATM where the windows have screens I cant remove. That said, I would probably seal the room, block off the heaters and throw in my window fans to get my room temps as low as they can possibly go. It just is way more effort than say if I was in a house etc.

[Jumper118]

3 minutes ago, Curufinwe_wins said:

Hard line interior radiators only . Plus I am in an apartment ATM where the windows have screens I cant remove. That said, I would probably seal the room, block off the heaters and throw in my window fans to get my room temps as low as they can possibly go. It just is way more effort than say if I was in a house etc.

thats sucks. are you on the ground floor?   maybe get a long extension lead  do a bit of outdoor benching.