Case Cooling Duct

[Angracey]

Hi, I work for a local computer shop and am currently seeking help in keeping out new PCs quiet.
We are currently using the Athlon XP 2100 as our "larger" system.

What I would love to have here is a standard ATX case with a cooling duct at the back, similar to a Dell case.
What I am trying to avoid is overly expensive heatsinks or fans.

I'm in canada, so any Canadian related web sites would be excellent.

Thanks again.

 

[lenjack]

Bear in mind that the Dell setup exhausts air off the heatsink. It does not blow air in from the outside.

 

[godmare]

Dell uses P4 systems, which run much cooler than XP processors. If that's a Palomino core, as opposed to a T-bred A or B, it's one of the hottest AMD processors yet made.

 

[BG4533]

I am going to bump this because I wanna know too.

 

[godmare]

Originally posted by: BG4533
I am going to bump this because I wanna know too.

I don't see how it could be done at all- and this is an exact repost, too.
What we want to do in this situation is take an inexpensive heatsink (so obviously not a top-of-the-line model), slap it a processor that runs on 71 watts at full load (I believe), put no fan on it, and instead route a duct over the heatsink to a silent exhaust fan at the back of the case. The cpu will burn up. The last time this was posted, and I don't remember off hand who posted it (though I could check...), I said get a Thermalright SK-7 or SLK-800 and put a Ultra-Quiet NMB 80mm (18cfm, 18dB) or a Panaflo L1A (24cfm, 21dB) and possibly even 7 volt the Panaflo. Put a couple of the same fans at the front and rear of the case as intake and exhaust, and 7 volt them, too. Put passive coolingon your northbridge chipset and gpu, and with a quiet psu, you've got a near-silent air-cooled rig.
EDIT:
Other thread, same user.

 

[Bluefront]

There's a good chance this setup would work ok if the fan direction blew the air into the case, through ductwork of sufficient size, right onto the heatsink. My own setup works fine like this, and that's with a fan blowing at about 2500rpm. Celeron 2.0.

I've never seen anything of the sort for sale locally....

 

[godmare]

Originally posted by: Bluefront
There's a good chance this setup would work ok if the fan direction blew the air into the case, through ductwork of sufficient size, right onto the heatsink. My own setup works fine like this, and that's with a fan blowing at about 2500rpm. Celeron 2.0.

I've never seen anything of the sort for sale locally....

Except you use a Celeron, that's my whole point: AMD chips are a lot hotter than Intel cpus. Frankly I'd be interested in any way that it could be done, but I honestly don't think that it is.

 

[Angracey]

Here's the real problem at hand.
I find that the retail CPU HSF (Athlon XP 2100) is rather loud. Add an extra regular case fan (about $2 canadian), and its loud as hell.

 

[BG4533]

Originally posted by: godmare

Originally posted by: Bluefront
There's a good chance this setup would work ok if the fan direction blew the air into the case, through ductwork of sufficient size, right onto the heatsink. My own setup works fine like this, and that's with a fan blowing at about 2500rpm. Celeron 2.0.

I've never seen anything of the sort for sale locally....

Except you use a Celeron, that's my whole point: AMD chips are a lot hotter than Intel cpus. Frankly I'd be interested in any way that it could be done, but I honestly don't think that it is.

Actually that is not true. New AMD T-Bred chips put out roughly as much heat as a P4. Check this out:
Processor Wattages.. Even the new celerons are not much lower in heat output.

Personally, I would like to be able to blow 20c air from the outside of my case rather than 27c from inside the case. I figured this would likely involve 2 fans (one at a side vent, and one at the processor with a duct between them). The 2 fans could likely be very weak, like 2 NMBs or something, but it would likely be comparable to a much more powerful fan in terms of cooling.

Brian

 

[godmare]

Originally posted by: BG4533

Originally posted by: godmare

Originally posted by: Bluefront
There's a good chance this setup would work ok if the fan direction blew the air into the case, through ductwork of sufficient size, right onto the heatsink. My own setup works fine like this, and that's with a fan blowing at about 2500rpm. Celeron 2.0.

I've never seen anything of the sort for sale locally....

Except you use a Celeron, that's my whole point: AMD chips are a lot hotter than Intel cpus. Frankly I'd be interested in any way that it could be done, but I honestly don't think that it is.

Actually that is not true. New AMD T-Bred chips put out roughly as much heat as a P4. Check this out:
Processor Wattages.. Even the new celerons are not much lower in heat output.

Personally, I would like to be able to blow 20c air from the outside of my case rather than 27c from inside the case. I figured this would likely involve 2 fans (one at a side vent, and one at the processor with a duct between them). The 2 fans could likely be very weak, like 2 NMBs or something, but it would likely be comparable to a much more powerful fan in terms of cooling.

Brian

yes, you are correct: the Tbreds are much cooler. If you look at one of my other posts, though, I cited the 2100+ Palamino core as being one of the hottest cpu's made, your link (which I bookmarked ) confirms that, and in fact dissipates a maximum of 1 watt higher than I thought. granted, there hasn't been any indication of processor core in this thread.
Angracey: what core 2100 do you have? Post the serial number if you're not sure.

 

[Angracey]

Thouroughbred core is being used mainly