Philly Boys Golem

[n00b 0f l337]

The unit started as a 5150 btu window air conditioner, and now has turned into what might become one of the best benching chillers (for GPU's) ever

:yumyum: :yumyum: :yumyum:






So yep, results when it finishes pressure testing and vacuuming.

[gtj]

The guts look familiar.

I wish I had the tools to do what you did.

[Philly_Boy]

Lookin good!! Is this the unit we'll be using at the MC event on June2?

[n00b 0f l337]

Ya except it will be tuned and then painted up nicely

[Philly_Boy]

S-c-h-w-e-e-t!!!

[n00b 0f l337]

Hahahaha this should be great. I'm going to paint the case and put in two 4" holes on top for the hoses.

[s1rrah]

The unit started as a 5150 btu window air conditioner, and now has turned into what might become one of the best benching chillers (for GPU's) ever

:yumyum: :yumyum: :yumyum:

The "Good Sense" trash bags in the upper right of the first photo is CLASSIC!

You probably didn't plan that ... but it works!

[Philly_Boy]

I was going to use this chiller to super cool the Swifty 6500T TEC block for the Micro Center event on June 2nd. Jake has LN2 pots for the 8800's...

Was wondering about how cold this will make everclear (grain alcohol)? The pelt has a -23c delta T hot side to cold side. I am hoping this will get the quad up to 4.3-4.4ghz. I guess we'll find out...

[serialk11r]

I was going to use this chiller to super cool the Swifty 6500T TEC block for the Micro Center event on June 2nd. Jake has LN2 pots for the 8800's...

Was wondering about how cold this will make everclear (grain alcohol)? The pelt has a -23c delta T hot side to cold side. I am hoping this will get the quad up to 4.3-4.4ghz. I guess we'll find out...

You want as little alcohol as possible and as much water as possible, so remember to mix in plenty of water Oh and are you sure that pelt will get good results on a quad? It doesn't look like a 226W TEC @ 13.8V (is it?) is going to cut it.
NoL you say you're going to make a sweet case for this. Hope to see it

[n00b 0f l337]

Sweet case yes eventually, but for now, just the old case but a bit of new paint. O Chilling the TEC block, forgot about that, oh that should be fun

[CCUABIDExORxDIE]

chilling a pelt isnt a great idea, but beyond that, nice start to the chiller.

[n00b 0f l337]

Chilling a pelt not a huge improvement, but in this sense we will see.

[Philly_Boy]

You want as little alcohol as possible and as much water as possible, so remember to mix in plenty of water Oh and are you sure that pelt will get good results on a quad? It doesn't look like a 226W TEC @ 13.8V (is it?) is going to cut it.
NoL you say you're going to make a sweet case for this. Hope to see it

Why do you advocate such a low alcohol to water mix? Isn't the idea to have a liquid mixture that gets as cold as possible before freezing? Hyper salinated water will still freeze at -20c to -21c. I have a bottle of Grey Goose in my freezer which is set at -18c and pours like liquid. What else might work? Ethanol?

Also, until you've personally tested a 226 watt TEC with -20c water cooling the hot side then please don't knock the TEC set up. Gabe Rouchon and Eric (OPPainter) of Swiftech took a 6500T TEC block and cooled it with cold tap water (about 7c) and ran his quad up to 4.037ghz with 1.47v vcore. With mild overclocks on water cooled 8800GTX's that set up landed a score of 20,242 good for 26th in the world in the 3D Mark 06 ORB. With better clocks on the cards and straight water on the CPU and 8800's he managed to get even higher to 25th (20250) in the world last I checked.

So, I figure with colder water cooling the hot side then I will be seeing almost single stage temps on the overclocked quad. My 8800GTX's are scaling pretty ok as well. I think that with LN2 cooling and clocks up to 845/2000/2400 (gpu/shader/memory) I should have no issue breaking the top 20 at this event. Do you live close by? Why not get a ride and come watch it happen?

chilling a pelt isnt a great idea, but beyond that, nice start to the chiller.

Nice thing to say, care to share why?

A pelt is pretty stupid....the colder you make the hot side then the colder the cold side gets as it comes closer to it's theroritical delta T. My pelt's Delta T is -26c so if I cool the hot side with -20c water then all the pelt does is get even colder. This is as long as I can feed it 13.8 volts at 25a or so.

[Xeon th MG Pony]

Colder the pelt gets, the less its resistance to power becomes, and thus you turn it more into what amounts to a short circuit. IE you are basically shorting out your power supply and turning the TEC into a heater. I am unsure how it will react to -20 how ever I am fairly sure you will not get what you expect.

the colder you make the hot side then the colder the cold side gets as it comes closer to it's theoretical delta T. My pelt's Delta T is -26c so if I cool the hot side with -20c water then all the pelt does is get even colder. This is as long as I can feed it 13.8 volts at 25a or so.

Albeit thats what one would intuitively think but that assumes A:100% efficiency and B: its resistance to power remains the same, how ever this is not the case.

Any case good luck and be interesting to see what happens, though you'd be much better off just ditching the pelt all together and running you coolant at a lower temp.

FYI Sterial your statement is so wrong in this field it is sad, Learn about what you're saying be for giving bad advice. Yes Philly you want slightly more alcohol then the lowest expected freeze point.

[Xeon th MG Pony]

Philly may I suggest you do some more reading into how a TEC behaves when chilled.

Serial may I suggest you learn WAY more about low temp cooling systems involving liquid medium.

[Starkiller42]

The problem I've seen with pelts at low temps is that the delta T shrinks as you lower the hot side temps. So while a TEC hooked up to a HSF might have a large -50*C delta T, a TEC on water might have a -20*C delta T, and a pelt on a chiller might have -5*C. I'm making up numbers here, but they reflect the general trend of what I've seen.

Now the big thing to keep in mind about this is that a TEC pumps out a lot of extra heat. This heat ends up in the chiller loop; in your case 13.8 volts x 25 amps = 345 extra watts to dissipate. I can personally guarantee you, unless you have some disgusting monster of a compressor, that decreasing you load by 345 watts will yield better temps than any temp advantage a TEC might give you.

For instance:
Chilled water @-10*C (345watts + 180watts=525 watts) -5 delta T=-15*C core temp

Chilled water @ -30*C (180 watts)

I hope that gives you a general idea of what is going through people''s minds!

Edit: lol some others beat me to it!

[Philly_Boy]

We'll experiment both ways using the TEC block and using a straight water block...

[n00b 0f l337]

Its somewhat true, but it does still get better performance, buts its a huge waste ultimately.

[Xeon th MG Pony]

Its somewhat true, but it does still get better performance, buts its a huge waste ultimately.

When there is huge waste thats what we call poor performance

[n00b 0f l337]

I meant a huge waste of energy, but thats seemingly what we always do to get the best performance out of what we have. We will test both, I honestly don't expect much improvement from running hte TEC, but Eric (OPP) @ swifty got a good bit better performance, not as good as water + tec as far as improvement, but still an improvement.

[Brettbeck]

Neat job NoL! What gas and capillary did you use?

With chillers do you have some sort of thermostat that allows you to warm up or cool the water for benching or 24/7 above ambient?

[n00b 0f l337]

With a resevoir you can use a thermostat, but otherwise no. This is inline, so better performance and quicker pulldown. 5' of .031 on here
My Modified R507a (its a blend) will end up in this.

[phelan1777]

grrrrrrrrrrrrrrrrrrrrrrr this SO BITES........

I just was informed that June 2nd..................same day MC BYOPC OC event, ROGER WATERS is performing....................

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

is the quad being used mine?


I am emotionally torn Roger Waters (Pink Floyd, *DARK SIDE OF THE MOON LIVE!
") or MC and BYOC event..............




hey, noobofl337 any update regarding our deal?

[n00b 0f l337]

MC and you know it

[Brettbeck]

With a resevoir you can use a thermostat, but otherwise no. This is inline, so better performance and quicker pulldown. 5' of .031 on here
My Modified R507a (its a blend) will end up in this.

So would you use say 2m of 0.8mm capillary and then put a thermostat probe into the reservoir and wire the thermostat to the compressor?