can the 1.6a run with just a HS and no cpu fan

[CanisEstInVia]

I was just thinking...can the 1.6a run with say a quality HS but no cpu fan directly on it? Maybe create a duct and have a case fan pulling air away from the hs and out of the case. I changed out the exhaust fan and the power supply fan with panaflos, and now the cpu fan is the loudest part of the computer. This is all curiosity here cuz I'm not willing to run stock speeds on this puppy just yet .

 

[NewSc2]

the panaflos aren't the strongest fans, so i'd say stick with a fan on the heatsink. if you're concerned about noise, what i'm using is an Alpha 8942 heatsink with the Panaflo fan, and it's coming out pretty nicely, however it's a bit hotter than it was with the stock hsf.

are you overclocking the 1.6A? how hot are temperatures right now, and what hsf are you using?

 

[CanisEstInVia]

Yeh, I'm overclocking the 1.6a right now with the stock hsf. I was just wondering if this duct setup would be ok to run it at default speeds. Like if I got bored of this comp I would try and make it silent, then give to my dad so he could use it for work.

How much of a difference in noise is the alpha with panaflo vs the stock hsf?

 

[Audiofight]

Well, couple things to add here:

1.) I am using my stock hs/f on my 1.8a and am oc'ing it right now to 2.4 (default voltage, 133 bus). My cd-rom drive or the box fan next to me in the window are loud enough to drown it out. So, I don't think the stock hs/f is noisy at all.

2.) Dell does what you are asking all the time. I attend Ferris State University and they have invested in a bunch of P4 Dell puters that use a passive hs on the proc. itself and then use a shroud/fan setup to full the heat off. It isn't anywhere near efficient for oc'ing, but it works great for most end-users and business applications.

 

[aceO07]

I wouldn't advise doing it with just the heatsink. I pulled the plug on the fan once, just to see how it would do. The temp. got up to 57c and I decided I should plug it back in. THis was would the retail heatsink/fan setup.

 

[CanisEstInVia]

Originally posted by: aceO07
I wouldn't advise doing it with just the heatsink. I pulled the plug on the fan once, just to see how it would do. The temp. got up to 57c and I decided I should plug it back in. THis was would the retail heatsink/fan setup.

Interesting...so how does Dell pull it off then if your cpu was heating up? Is that shroud pretty good at cooling or are dells running higher temps?

 

[Showtime]

My Dads 2ghz Dell with that crap passive cooling set up sucked. Its just ducting that wraps around a big heatsink on one end and has a very quiet fan on the other. They use this crappy stuff for thermal tape and on my dads system left the plastic tape on it. I could be wrong but plastic does not conduct heat very well. I removed the tape and pink crap and put some arctic 3 on the chip. I tried to mount a different cooler but dell has a non standard bracket. It now works ok but it doesnt repond well. I think the heat may have messed it up.
Have you seen those zalman coolers. Real nice looking and its close to passive in that you mount a near silent fan somewhere in the case to circulate air on the fins.
good luck
-show

 

[Lecho]

Zalman has a fancy copper fan heatsink (refering to the arrangement of the surfaces, there is no actual fan attatched even though there is an optional fan you can put next to it in an expansion slot) that I'm sure will keep your 1.6A suffuciently cool, and even allow for some overclocking. It seems they are rated for 2.8 and over, but that is with the fan too.

Zalman Website

 

[CanisEstInVia]

Originally posted by: Lecho
Zalman has a fancy copper fan heatsink (refering to the arrangement of the surfaces, there is no actual fan attatched even though there is an optional fan you can put next to it in an expansion slot) that I'm sure will keep your 1.6A suffuciently cool, and even allow for some overclocking. It seems they are rated for 2.8 and over, but that is with the fan too.

Zalman Website

Hey thanks for the reply. I had often seen this cooler but didnt think about perhaps using it passively. This would probably require atleast some decent airflow so my minitower would probably need some sort of intake (not running one at the moment). Might be something I'll try when I'm bored and have leftover $45.

 

[dexvx]

If you can ever get your hands on one, use a Xeon all copper heatsink. Intel Retail Xeons (or that of some major OEM like Dell) use ultra high quality heatsinks with no fans. All they use is a duct that leads to the exhaust fan.

 

[CanisEstInVia]

Originally posted by: dexvx
If you can ever get your hands on one, use a Xeon all copper heatsink. Intel Retail Xeons (or that of some major OEM like Dell) use ultra high quality heatsinks with no fans. All they use is a duct that leads to the exhaust fan.

Do these fit the socket 478s? I saw a couple on ebay...interesting alternative. Thanks.

 

[dexvx]

Originally posted by: CanisEstInVia

Originally posted by: dexvx
If you can ever get your hands on one, use a Xeon all copper heatsink. Intel Retail Xeons (or that of some major OEM like Dell) use ultra high quality heatsinks with no fans. All they use is a duct that leads to the exhaust fan.

Do these fit the socket 478s? I saw a couple on ebay...interesting alternative. Thanks.

I'm not sure if they fit or not, but physically the socket 603 isnt much bigger than socket 478 (like socket370 heatsinks can fit on socketA boards). What I do know is that they are some of the highest quality heatsinks on the market. I have a Dell Precision workstation with Intel Xeon 2.8Ghz, and they are just using the 2 heatsinks with a plastic duct that leads to the 120mm exhaust. Its a perfectly quiet workstation (so no incredibly high air flow there), and I believe it needs to be a very high quality heatsink if you're going to passively cool a 2.8Ghz Xeon.