Question about ducting and anyone have this ducting mod?

[AtomicAlien]

Does anyone and how does it work? Would a 26cfm Panaflo L1A be enough without losing a lot of cooling? Thanks!

ThermalTake DuctingMod

Also, does anyone have any good links or suggestions on ducting a CPU for better cooling? Thanks!

This is my case, that is, the one without the window.

 

[boyRacer]

Someone here made a custom duct sucking air from the outside with a quiet Panaflo and his temps are rather good.

 

[AtomicAlien]

Originally posted by: boyRacer
Someone here made a custom duct sucking air from the outside with a quiet Panaflo and his temps are rather good.

Im confused, so it was taking air away from the CPU and toward the outside of the case or was it the other way around?

 

[SWScorch]

I think he means drawing air into the case and over the CPU. I'm doing that with my server. I have a rear 92mm fan, and a shroud that goes over my heatsink, and the cool outside air is ducted directly to my CPU. My temps stay below 40, on an Athlon 1GHz with an Alpha PAL8045.

As for that mod, I'm not so sure it would make much of a difference. It's not drawing the air from outside the case, right? It's just removing the little dead spot under the hub of the fan? I can't imagine that would make a huge difference.

 

[AtomicAlien]

Originally posted by: SWScorch
I think he means drawing air into the case and over the CPU. I'm doing that with my server. I have a rear 92mm fan, and a shroud that goes over my heatsink, and the cool outside air is ducted directly to my CPU. My temps stay below 40, on an Athlon 1GHz with an Alpha PAL8045.

As for that mod, I'm not so sure it would make much of a difference. It's not drawing the air from outside the case, right? It's just removing the little dead spot under the hub of the fan? I can't imagine that would make a huge difference.

You mean blowing cool outside air onto it? My chieftec case has two fans so the ducted one might just pull the hot air back in...

 

[OulOat]

Panaflo L1A are 24cfm. Someone else on this forum tried this duct before, reporting a few degrees drop. But that was with a high cfm tornado, so I'm not sure how effective it would be will a panaflo

 

[AtomicAlien]

Originally posted by: OulOat
Panaflo L1A are 24cfm. Someone else on this forum tried this duct before, reporting a few degrees drop. But that was with a high cfm tornado, so I'm not sure how effective it would be will a panaflo

Darn, what about ducting in general?

 

[SWScorch]

Originally posted by: AtomicAlien
You mean blowing cool outside air onto it? My chieftec case has two fans so the ducted one might just pull the hot air back in...

Hmm, that is a good point. Also, with Chieftec cases, optimal airflow is achieved with both rear fans exhausting. If you turned both around, you would so much intake, your airflow would be all messed up.

Of course, sometimes heatsinks work better with the air being pulled away from them (especially with Alphas) so it may work out if you keep your current config and duct the CPU heatsink to an exhaust fan.

 

[Bluefront]

There is certainly a lot of dis-information to be found on this board about ducting....and every subject for that matter. Most of the wrong/bad advice apparently comes from people who have never tried it. So take anything you read here, with a large grain of salt, just don't believe it till you try it.

Here's my DIY duct blowing onto an Alpha, using a large filter. That one 80mm fan is the only intake fan....runs cool.

Ducting an Alpha

 

[boyRacer]

Originally posted by: Bluefront
There is certainly a lot of dis-information to be found on this board about ducting....and every subject for that matter. Most of the wrong/bad advice apparently comes from people who have never tried it. So take anything you read here, with a large grain of salt, just don't believe it till you try it.

Here's my DIY duct blowing onto an Alpha, using a large filter. That one 80mm fan is the only intake fan....runs cool.

Ducting an Alpha

:Q That's ducting on steroids...

But here's the ducting i was talking about... its by pelikan... he's in here somewhere...

 

[AtomicAlien]

Originally posted by: Bluefront
There is certainly a lot of dis-information to be found on this board about ducting....and every subject for that matter. Most of the wrong/bad advice apparently comes from people who have never tried it. So take anything you read here, with a large grain of salt, just don't believe it till you try it.

Here's my DIY duct blowing onto an Alpha, using a large filter. That one 80mm fan is the only intake fan....runs cool.

Ducting an Alpha

Thats the ducting im looking at, only problem is, I dont have an Alpha and I have a chieftech case with two rear fans! Maybe I could duct one fan to the CPU to blow air out, only problem is, I dont know if a 26Cfm Panaflo is enough for that.

 

[maluckey]

I run an Alpha PAL 8045 in reverse mode, ducted to the side of my case. I did it to remove a noisy case fan, but the results were that it also dropped CPU temps by an average of 2 degrees celcius at full load, over an hour long stress test, all things being the same. The other good thing, is one fan now acts as case fan, and cpu fan. I also have a remote fan with ductwork, for the power supply fan, and the duct seems to increase flow of the fan. The power supply temp dropped 1 degree average. I got the idea from my tuned car intake by AEM. They tune to the pulse wave, for maximum flow.