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Heatercore question

S

SocceRich20

2[H]4U
Joined
Aug 4, 2003
Messages
2,512
I have a 2Fresh (77 bonneville) core. I have it mounted externally on the top of my chieftec antec style case (X-SuperAlien). It is merely laying on top, no holes or anything underneath it. I have a room fan laying on top of it for now, until I get another 120mm fan. My question is, would I be getting better temperatures if I were to put some space between the heatercore's bottom and the case's top? Also, in my situation, I have no fans in the case, except the power supply (Vantec Stealth 470w), and an Evercool 120mm in the front cooling the hard drives. What would be the ideal fan configuration for the heatercore mounted up top? Should I have the fans on the very top, exhausting or intaking? Or maybe I should put them between the heatercore and the case's top? I am shooting to use 120x38mm YS-Tech fans, mounted with zip ties.
 
if you just set the core on top of the case with no hole under it or fans pulling air through it, you have a massive lack of airflow and are getting nothing close to the cooling that core can offer.

if you intend to mount the core to the top of the case, pushing or pulling air thru the core will work but you want the fans to exhaust air from the case as opposed to trying to blow air into the case from the top down.
 
generly heatercores work better when air is pulled through them rather then pushed so i would say cut a hole in the top of the case mount the heatercore over that use a shroud on top of the heater core then have the fan ontop of that and have it pull air up this will keep case temps down and allow good air flow through the heater core.

untill then you wight want to prop up the heater core so the room fan can blow air through the thing. you dont need much room just enough for air to get through the bottom that should help temps for now.
 
the difference in between pulling and pushing air through the core is usually more of a noise issue - pulling seems to be a little quieter. if there is a noticable difference in temps between pulling and pushing air, that is usually a result of the shroud design. Most shrouds use a round hole for the fan cutout which is much more effective for pulling air than it is for pushing it. If the fan cutout is optimized for fans mounted to push air there is usually no measurable temp difference.
 
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