Air conditioning unit

[catkicker]

Don't know if this is extreme cooling.
I lucked out in the RMA process with AMD they replaced my 3200+ Newcastle with a 3700+ Clawhammer :nod: So I'm getting ready to setup my UT nF3 250Gb rig again but this time on air. Had been kicking sround some ideas about air cooling when I stumbled upon this unit at a ford automotive plant I'm working at. It's a airconditioning unit designed for cooling computer racks/ pannels/ enclosures in hot enviorments. I could not find a pic of the exact model but heres the basic design and specs.
Series Side Mount unit
cooling 2000, 586 BTU @ 60 Hz


This unit is roughly about the same size as a typical home computer tower. It's designed to provide VERY cold air to the case/enclosure without any moisture(Dry very cold air). It can not be mounted directly to my case but with some simple ducting I can have the unit setup to blow the cool air into the bottom of my Cheiftec matrix case at the bottom rear exhaust fan and the the other duct from the unit will enter the case below the PSU.
Problem is I'm working out of town for the next 3 months so this project will have to wait for now.
the main draw back is noise it has 2 fans moving 220CFM of air at 80db
I can replace those fans with these Deltas
http://www.sidewindercomputers.com/de12tfexhisp.html

65db x 2 beats the hell out of 80db x 2 .

It looks very much like the box on the right(Astek case/server cooling unit)


http://www.asetek.com/default.asp?s...=sideid&myvalue=14&contentSection=2&menuID=-1.

 

[zenzog]

That looks sweet, I wonder what kind of temps you'll get?
Also, what kind of power draw is it?

It seems like it would be rather loud, but hey, anything for speed!

 

[Jonsey]

I wonder what kind of compressor/condensor/refrigerant it has?

 

[catkicker]

That looks sweet, I wonder what kind of temps you'll get?
Also, what kind of power draw is it?

It seems like it would be rather loud, but hey, anything for speed!

Yes noise is a factor this being a commercial application they did not consider noise factor
these fans are estimated to be 80db with some different fans and Sound Dampening
material it should bo ok. as far as specs on pump.
Phase 1, 60 hertz, FLA 6.0
Cooling 2000, BTU 586
115 Volts
R-12 10 oz.
high side pres. 300
low side pres. 150

 

[Zxcs]

Temps would be low but not insanely low. I ran my AC (12k BTU) unit next to my nekkid SLI rig back when I first got it. Room temp was 6C and ambient around gpu/cpu was 7C. I had 26C loaded on both GPUs and 23C on CPU. Only problem with this type of setup is that it is INSANELY noisy. I run 2 vapochills 24/7 and they are loud but my AC unit is louder than both.

 

[catkicker]

I agree noise factor is BIG. I'm still looking into swaping out the fans for delta sidewinder's 221CFM around 65db with added sound dampening material I'm hoping it would be loud not insanely loud as it is right now.

 

[jinu117]

Pic of unit would be awesome
personally anything over 100CFM on 120mm fan will be Darned noisey. I think even 80cfm 120mm fan is marginal to be honest with ya. If you can open up the unit, maybe constructing shroud to increase efficiency of airflow might be an option as they usually aren't designed with noise in mind thus insufficient depth or shape of shroud is used quite frequently.

 

[catkicker]

Well since I'm still out of town and can't set this up on my Nf3 rig I decided to hook it up to my NF4 rig thats in my sig. Went down to Home depot and got some flexiable duct tubing and some sheet metal and made up some custom duct work for the unit. Here's the results of my very crude setup.

Test rig, one in my sig. Running Prime 95 In place large FFT's max. heat & power consumption

3500+Clawhammer 2.76GHz. 1.55V

Before AC unit
case temp. 27.1 degrees C. humidity 36%
CPU Temp. 48 degrees C.
PWMIC 35 degrees C.
Chipset 39 degrees C.

With AC.
case temp. 19.0 degress C. humidity 38%
CPU temp. 42 degress C.
PWMIC 23 degrss C.
Chipset 37 degress C.
GPU 36 degrees (running 3D Mark 2001

Hmm. wonder if 2.9GHz. is possiable on this chip

jinu117 No camera avaliable in my first post you can get a idea of the design and what it looks like

 

[jinu117]

Well since I'm still out of town and can't set this up on my Nf3 rig I decided to hook it up to my NF4 rig thats in my sig. Went down to Home depot and got some flexiable duct tubing and some sheet metal and made up some custom duct work for the unit. Here's the results of my very crude setup.

Test rig, one in my sig. Running Prime 95 In place large FFT's max. heat & power consumption

3500+Clawhammer 2.76GHz. 1.55V

Before AC unit
case temp. 27.1 degrees C. humidity 36%
CPU Temp. 48 degrees C.
PWMIC 35 degrees C.
Chipset 39 degrees C.

With AC.
case temp. 19.0 degress C. humidity 38%
CPU temp. 42 degress C.
PWMIC 23 degrss C.
Chipset 37 degress C.
GPU 36 degrees (running 3D Mark 2001

Hmm. wonder if 2.9GHz. is possiable on this chip

jinu117 No camera avaliable in my first post you can get a idea of the design and what it looks like

Wow... with all the noise... that's it...?
Wonder what you would gain with that CFM fan on straight air cooling...
Do you think the unit is working properly?

 

[catkicker]

The unit was blowing 11 Degress C. air. I had very crude setup used duct tape to hold it in place.I used flexiable dryer vent duct was way too long. I should get better results with a the proper size and length ducting and inlets. no tools here LOL.

I was pleased with the initial results hit 2.87GHz.@ 1.62V and temps stayed below 50 degrees C. durring prine 95 don't know how stable of OC it was would need to run prime overnite

 

[jinu117]

I would more worry about day time when ambient temp is higher overnight usually is about 10-15c lower here than mid day hehe.
Anyways, it sounds like you could further improve temp by changing CPU HS and possibly more streamlined air flow considering it will be 11c ambient...