Koolance CPU-LN2 Liquid Nitrogen Evaporator

[The Nemesis]

I bought one so we'll have an average joe comparison too

[TheGoat Eater]

Of course I sounded receptive, I'd give everyone stuff to review if I could!

You can PM me with any questions.

Who do we contact for the insulation that was left out and not even available as an accessory? I mean I like research as much as the next techie but trying to find a tube of unslit K-Flex 2 1/8" 1/2"wall 6foot piece that will not cost $25 bucks w/ shipping is a pain - especially when it seems it will be a bit too small... I mean adding the insulation with it would have added only at most $2 to the price and affected the weight by an once or two... I mean this is a big piece of the puzzle and something that confuses me as to the reason its left out...

If not I either got a pretty show piece or a heavy item to ship back

who cares really

how often do you buy a CPU pot

i dont think that a CPU pot cost is that big a deal....GPU maybe as you do have to facilitate for new bloody holes all the time

what poor bastards on XS will do is end up buying these lame ass pots and then after they get into it seriously will realise its PITA and THEN buy something proper........wasting money on the initial purchase
i've gone through this myself

I bought it to review and do some light tests with DICE but it will be more money and time to buy insulation and wait for it to arrive (from a plumbing supply company not Koolance)

Well I'd say don't judge the pot yet and remember it's price. I myself knew I'd be doing a ton of benching so I bought an F1EE after figuring 20 bench sessions in a year put the pot cost at $20/session, acceptable for me. There are other guys out there though that might bench 5 times in a year and can't swallow the $400 pot cost + $300 dewar cost and instead opt for dry ice and a $150 pot. For the same reason that everyone doesn't own a TRUE with 190CFM deltas

Do you even need to guess what i am about to tell you on what you will need to do a run?... yeah you guessed it Insulation!!! got $25 and another week ?

[[XC] gomeler]

Do you even need to guess what i am about to tell you on what you will need to do a run?... yeah you guessed it Insulation!!! got $25 and another week ?

I knew this going in I've got rolls of insulation from the HVAC work I do.

[cowie]

who cares really

how often do you buy a CPU pot

i dont think that a CPU pot cost is that big a deal....GPU maybe as you do have to facilitate for new bloody holes all the time

what poor bastards on XS will do is end up buying these lame ass pots and then after they get into it seriously will realise its PITA and THEN buy something proper........wasting money on the initial purchase
i've gone through this myself

well thats how i feel about the koolance gpu put it's not very good with dice i have not tried with ln2 thuo.

now to get a real gpu pot off one of the pro pot makers here
btw
it comes with no insulation
thank god kyle sent me all sorts of extra neopreen and art erasers with his cpu pot

[[XC] gomeler]

the pot arrived along with my new 3 liter hand dewar Airgas should be delivering 180L of LN2 on Wednesday, I'll get started testing this on Phenom II asap.

[The Nemesis]

Testing with dice here soon, pot arrived thursday. Pretesting with phase to get some numbers and settings beforehand.

[[XC] gomeler]

Been slacking.. going to get the DT150 I have repaired and then getting started on testing this pot. Review will be posted after Computex, will pot another thread when I compile results.

[[XC] gomeler]

Taking a day off from HVAC work to experiment with dry ice. Picked up 20 pounds, insulating up my M4A79T-Deluxe right now

[[XC] gomeler]

For $150 I'm impressed. I measured all temperatures on the IHS of the AMD Phenom II X4 955. Idle was -64C on the IHS, 3D06 @ 4622MHz CPU, 3300MHz NB, 1.6vCPU/1.4vNB droops to -57.2 Celsius on the IHS near the end of the 2nd CPU test. 3D05 @ 4700MHz loads at -59.7 Celsius. SPi 1M @ 4840MHz drooped to -63.5 Celsius while 32M @ 4770MHz droops to -62.6 Celsius.

For comparison my K|ngp|n F1EE idled at -61C on the IHS, 3D06 at identical clocks/volts drooped to -57.4C. 3D05 loaded at -58.7 Celsius. 1M @ 60.6 Celsius and 32M @ -59.4 Celsius.

The excess mass of the F1EE helps it to hold out through the 3D06 CPU tests however in all the other tests the internals of the Koolance pot benefits dry ice. The F1EE takes ~50% more acetone to be functional and keeps the dry ice further away from the actual heatsource. Next up will be dry ice on Core i7 and then LN2 on both platforms. Will have a formal review written up when everything is done.

I'm rusty with dry ice, been ~1 year since I used it. I don't know if these clocks are decent for dry ice, they are about 300MHz lower than my cascade results at -85 Celsius IHS through SPi 32M.

[The Nemesis]

Glad to see your deltas are consistant with mine. It was my first time with Dry Ice so I wasn't sure if I was reporting correctly.

[tripgood]

Confirmed here on temperature delta with dice. I actually recorded a minus 71c at idle. I checked my probe with 2 different meters and they were the same within .2c or so. I don't know if it makes a difference or not but I used denatured ethyl alcohol 99% anhydrous for the bath. Looking forward to ln2 results.

[[XC] gomeler]

I tested this pot this weekend on LN2.. it was a horrific mess I'm in the process of writing up the review but basically I didn't even try it on LN2 after I ran 3DMark2006 with a 5.1GHz Core i7 @ 1.5v and the pot crashed from -80C to -60C by the end of the second test with the pot half full of nitrogen. wPrime 1024M crashed in 30 seconds with the pot topped off to the rim with LN2. Great dry ice pot but it's LN2 performance blows so hard. Funny how well it held with dry ice but even with a pot full of LN2 it fell on it's face. Review & link later this week.

runmc called me up on Tuesday, apparently The Nemesis experienced the same thing and they were confused as to why it sucked so bad on LN2. It needs surface area badly for LN2 sadly

[[XC] gomeler]

Review posted over at LegitReviews: http://legitreviews.com/article/987/1/

[The Nemesis]

Review posted over at LegitReviews: http://legitreviews.com/article/987/1/

Very good and very accurate review. RunMc and I are working with the VID pot Koolance sent over. Mounting hardware is superb as well but won't allow you to use the first pci-e slot on Evga Classifed due to northbridge. Tested with LN2 first and we are moving over to dice today.

[[XC] gomeler]

How is actual performance on the VID?

[The Nemesis]

How is actual performance on the VID?

Pretty good, it held temps through 3DMark 06 to just about whatever we wanted on LN2. First tests were on GTX 280 with voltage adjusted to 1.35v. Held temp to -50's C. We weren't really adding a whole lot of LN2 because didn't seem necessary with such a mild overclock of 876 on core. It's now mounted on a HD4890 and we'll finish our tests today.

[Jor3lBR]

How is actual performance on the VID?

Great review mate!

I want start slowly on this dry ice environment so I would think this is the pot to consider.

What is the main difference between benching with Dry Ice and LN2? Just the lower temps?

[tripgood]

Review posted over at LegitReviews: http://legitreviews.com/article/987/1/

Thanks for the enlightening review. I was hoping that my fantastic results on dice with this pot would translate over to ln2 when I get there. I see no need to try it with ln2 now.

[[XC] gomeler]

Great review mate!

I want start slowly on this dry ice environment so I would think this is the pot to consider.

What is the main difference between benching with Dry Ice and LN2? Just the lower temps?

Lower temperatures and in my opinion easier to use. You can also maintain very precise pot temperatures versus dry ice where you are at the mercy of your acetone bath.

Buy the pot for $150 and start on dry ice, if you decide to jump to LN2 I'm sure you can resell the pot for $100+

[Jor3lBR]

Lower temperatures and in my opinion easier to use. You can also maintain very precise pot temperatures versus dry ice where you are at the mercy of your acetone bath.

Buy the pot for $150 and start on dry ice, if you decide to jump to LN2 I'm sure you can resell the pot for $100+

Great thank you, now I need to find a "Dry Ice for Dummies" guide.

[biglipzit]

Insulate motherboard and mount insulated pot onto cpu. Place slab of dry ice in towel and beat with hammer, add 2 cap fulls of acetone to CPU pot. Fill pot to top with crushed dry ice and keep topping up when it sublimes to 1/4 full. Overclock as much as possible.

Dry Ice for Dummies guide will be $1.00.

Paypal at danielkessell@gmail.com

[hifiking]

We tried this pot on LN2, i7 @ 5ghz+ 1.5+ volts. And the temps was very stable, we couldn't get it up nor down. The probe showed -79C, and with a full container it went down to -78 after 06 cpu tests. But i took several minutes to get it to -79 again. It's a slow pot, both ways.

But thats our experience. The probe was a spare one, so the temp isn't accurate.

[biglipzit]

-79 on a full pot? Is that anywhere near right?

[hifiking]

It isn't, but as I said, the probe was a spare. We don't know what condition that was in. But the rise and fall in temps should be relatively right.

[[XC] gomeler]

That would be completely counter to the results of The Nemesis and myself. I think you should test the minimum temperature your probe can ready, I bet it is -79C and you are right on the edge. I know my Fluke 16 can only read down to ~-125C accurately and then it starts to scale inappropriately with -130C being equal to -165C real.