mikotan

First great build.

second, the slipstream fans die really fast. I suggest getting/trading to scyth S-flex fans.

]

Its to bad they don't make the S-flex in a 140mm layout.

zimbambadu

I went with the SR-1. Apparently it can handle fan speeds up to 2000 rpm. I'm not sure what this means exactly as RPM doesn't exactly equal CFM, but I think that I will go with lower RPM but higher CFM fans.

The SR-1 was specifically designed to drop into a system with low airflow (800RPM's) the GTX will also do the same thing. Overall the GT, GTX & SR-1 work well with high flow fans (2000RPM's) the GT is the only one not really designed for low flow fans.

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So I dropped the 2 new 140mm fans in the case... and... temps actually dropped.

Scythe 140x25mm SlipStream SM1425SL12H - 92.4 CFM
http://www.sidewindercomputers.com/sc14slsm92cf.html

I have 2 of the above fans running at 1350 RPM that have replaced the crappy 1000RPM fans that shipped with my Obsidian 800d case. I have to say I am impressed...

GPU Loop: The GTX 295 now sits at a nice 35c at idle instead of 39-40c  and under full load on Furmark for 1 hour it peaked at 46c overall a 4c drop in temp at full load and 5c temp drop idle.

CPU Loop: This one was a bit harder to calc as temps are all over sometimes. But before I tested the system with the new fans I had it running for 2 hours idle to see where the temps sat at. ELEET reported CPU 30c 44,42,43,41 (case closed up). With the new fans ELEET is reading 26c 40,41,40,39 (case closed)

The temps overall dropped and it was as simple as getting 2 better fans... to top it off they are just as silent as the Cooler Master fans at 1350 RPM. But if I crank them up they can be heard.

vegasr

Awesome stuff!

I love that 800D and trying to talk myself to replace my Lian Li G70 with it.  Tons better features and allows awesome work like yours.

Your design is awesome, and I have the same feelings about being able to move that 655 pump.
Did you have any other alternatives on putting the 655 pump anywhere else?  Looking at your pics, is it possible to move it to the right side of the vid card, and rotate it to where the inlet was pointing upwards towards the res and the outlet facing to the left?  Hope that makes sense.

The only thing with that placement is it will be covering the air passing from the bottom. the Dual Rad setup relies on that 140mm fan to be there. I could move the pump next to the smaller 335 but than it would be a mass of tubing right there.

I have an idea that will allow me to make the stack look better and cleaner, but i will not be able to show that off until I get the 2 GTX 480's. The only other option I have is getting another 335 with a 1/2" top... which could be a good route to go to make the case look a little cleaner and would allow both pumps to be in the same location.

sledgehammer70

zimbambadu

I went with the SR-1. Apparently it can handle fan speeds up to 2000 rpm. I'm not sure what this means exactly as RPM doesn't exactly equal CFM, but I think that I will go with lower RPM but higher CFM fans.

The SR-1 was specifically designed to drop into a system with low airflow (800RPM's) the GTX will also do the same thing. Overall the GT, GTX & SR-1 work well with high flow fans (2000RPM's) the GT is the only one not really designed for low flow fans.

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So I dropped the 2 new 140mm fans in the case... and... temps actually dropped.

 


Yeah, I figured that, but it is also true that not all 120mm fans are created equal. From the wording used to describe the SR-1, and the density of the fins (greater than the GTX), I would suspect a point of diminishing returns. I could be wrong though, things don't always work as I expect. :p

I found a great article here on the different radiators: link

Do you know if anyone is putting out any estimates of how many watts the overclocked 480's are going to put out?

Also, thanks for the tip about the 140mm fans, I'm glad it made such an impact on your system. It bodes quite well for the rest of us.  If they start coming out with good 140mm fans, I might grab a 280 instead of a 240 for my second loop. There should be plenty of room on the bottom of the case for it. I don't know that that will gain me any more in heat dissipation, but it's something to consider.

sledgehammer70

My guess on 1 480 under full load is at 300watts even than with 2 that is only 600 watts on my 900watt rated 240 rad. So I am not to worried about it. :)

Word. I mainly want the 140mm form factor because the fans tend to be quieter the bigger you go. Same sort of reason I went with the SR-1 so I can get away with low fan RPMs. I'm sick and tired of fan noise. I'm sure my pumps will make noise but they don't seem to be as high pitched as some of my current fans get. 

I guess I just need to make some measurements to see if I can get the black ice gtx 280 in there.

That's the truth. I have a 295 and when I'm playing I dunno if I'm listening to the game or the card fan. I suspect that the 480's are going to be just as bad. I've been wanting to WC for a long time, this just pushed me over the edge. I don't seem to be able to find any EVGA Hydro Coppers for pre-order anywhere. I might just grab the normal 480 and put waterblocks on them. I dunno if that would make them easier to sell if I decide to upgrade at a later point. 

Btw, I forgot to link you. Here's what I used, they're 120mm but they move hella air.

http://www.newegg.com/Pro...x?Item=N82E16835185054



For 140s.. These 3 look like the best:


http://www.newegg.com/Pro...x?Item=N82E16835233037

http://www.newegg.com/Pro...x?Item=N82E16835109029

http://www.newegg.com/Pro...x?Item=N82E16835146002



I love the look of the ThermalRight.. Dead sexy.

The GTX 240 rad I am using is rated for 900watts and keeps my GTX 295 at 35c idle. If it can't keep 2 GTX 480's cool enough than I have a problem. But I am sure it will be more than fine.

Please let us know how the gtx 280 or the gtx 240 would fit in there..

Sorry if I was unclear. I am going to make sure not only will it fit, but make sure I still have an amount a workable room before I get the radiator.

sledgehammer70

Well I took the plunge the other day and upgraded my PSU. My Silverstone 1500ST should arrive today

Damn nice psu!!!  Hats off to you, sir.
 
I almost got that one but went with the Enermax Galaxy Evo 1250 myself.  That 1500ST is the king.

WOW  that looks good nice touch on well... everything! I'm just getting started in all of this stuff and it's so cool to see all this creativity. It makes my little case mods not even worth bragging about lol.
 

Nice Setup

How do you tell how many watts a radiator is rated at?

Whats the xflow gts 240 cover? I was looking at it on the DD site and i didnt see the info anywhere.