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Blackeagle · 10-10-2003, 10:22 PM

Gooserider,

The "wind tunnel" will be approx. 26" X 16" X 12" and will have baffles that will create a S shaped flow route for the air coming into the rad & fans area and again exiting after passing over my pump.

Whole tunnel will be lined with two layers of sound deadening materials. One dense 1/2" foam layer overlayed with a 1" lower density foam of a egg flat type. These foam layers are, in large part, the reason for the size of the tunnel. The tunnel will be made from wood for it's natural sound reducing qualitys.

With 4 120mm fans set up with 2 pushing and 2 pulling hooked up to a reobus that will allow me to run them from 5v-12v it should offer a good noise value as well as extreme performance when desired. Although with that many 120mm fans at 12v I don't think even the sound foam would keep it from being a bit much.

Case is a PC76 Lian-Li server tower, which will also be lined with the same foam(s). I'll close off most of the slot vents on the case with the foam as well as part of the rear fan openings. I'll install a small window in the case top and replace the 120mm fan there with a 80mm, and the window material will be 1/4" to weight the panel a bit as well as offer lower transmission of sound due to the greater thickness of the plexi. The 4 front 80mm mounts will be removed and a single 80 or 92mm will replace them centered on a single hhd bay with the other drive bay removed.

PSU will be a 510 PC P&C, not the most quiet, but a very good PSU other wise with high 12v output. PSU and all case fans will be mounted with the new silicone vibration dampeners or a layer of the 1/2" foam between the fan and the case.

Over all I'm hopefull it will offer quiet combined with a pretty high O/C. This system will be moved seldom, if at all, so I'm not really concerned regarding that point.

Now that I've detailed a bit better my design ideas I'd love to hear your input on further improvements to it. One question I have no answer to it this: What amount of air flow through the case will be needed to keep a low enough case temp to keep the PSU fan from wanting to increase it's RPM's? I'm guessing 40+CFM should do it, but not sure. The water cooling of the CPU & GPU should help this some.

Thanks

10-10-2003, 10:22 PM	#22
Blackeagle Thermophile Join Date: Oct 2002 Location: U.S.A = Michigan Posts: 1,243	Gooserider, The "wind tunnel" will be approx. 26" X 16" X 12" and will have baffles that will create a S shaped flow route for the air coming into the rad & fans area and again exiting after passing over my pump. Whole tunnel will be lined with two layers of sound deadening materials. One dense 1/2" foam layer overlayed with a 1" lower density foam of a egg flat type. These foam layers are, in large part, the reason for the size of the tunnel. The tunnel will be made from wood for it's natural sound reducing qualitys. With 4 120mm fans set up with 2 pushing and 2 pulling hooked up to a reobus that will allow me to run them from 5v-12v it should offer a good noise value as well as extreme performance when desired. Although with that many 120mm fans at 12v I don't think even the sound foam would keep it from being a bit much. Case is a PC76 Lian-Li server tower, which will also be lined with the same foam(s). I'll close off most of the slot vents on the case with the foam as well as part of the rear fan openings. I'll install a small window in the case top and replace the 120mm fan there with a 80mm, and the window material will be 1/4" to weight the panel a bit as well as offer lower transmission of sound due to the greater thickness of the plexi. The 4 front 80mm mounts will be removed and a single 80 or 92mm will replace them centered on a single hhd bay with the other drive bay removed. PSU will be a 510 PC P&C, not the most quiet, but a very good PSU other wise with high 12v output. PSU and all case fans will be mounted with the new silicone vibration dampeners or a layer of the 1/2" foam between the fan and the case. Over all I'm hopefull it will offer quiet combined with a pretty high O/C. This system will be moved seldom, if at all, so I'm not really concerned regarding that point. Now that I've detailed a bit better my design ideas I'd love to hear your input on further improvements to it. One question I have no answer to it this: What amount of air flow through the case will be needed to keep a low enough case temp to keep the PSU fan from wanting to increase it's RPM's? I'm guessing 40+CFM should do it, but not sure. The water cooling of the CPU & GPU should help this some. Thanks Last edited by Blackeagle; 10-10-2003 at 10:38 PM.