Fanless heatsink cooling. A different approach, think it may work? It is now in operation... are these temps safe?

[SinfulWeeper]

Seems nobody in the FS/FT forum has a 60mm --> 80mm adapter they want to part with.

Anyway this is my thought. I have a SX1030 case and the rear blowhole is only a short distance away from my heatsink. I put already put a L1A to preplace that loud monster in the PSU. If I were to another L1A on that rear blowhole, wouldn't create enough circulation in the system to cool the heatsink?

Edited to add:

It is now in operation. CPU temp 51C-52C and case temp @ 30C with normal startup items along with Netscape. About to try a quick game of Starcraft to see what that brings it too. I'll report back in about 15 minutes or so.

 

[ShinSa]

<< Seems nobody in the FS/FT forum has a 60mm --> 80mm adapter they want to part with.

Anyway this is my thought. I have a SX1030 case and the rear blowhole is only a short distance away from my heatsink. I put already put a L1A to preplace that loud monster in the PSU. If I were to another L1A on that rear blowhole, wouldn't create enough circulation in the system to cool the heatsink? >>



Not unless the fans were directly on the heatsink. Maybe you can custom make a shroud that extends the fan to the heatsink. Sort of like the old PIII's.


Even then L1A's are not powerful enough to act as a case fan and a heatsink fan. I mean come on, L1A pushes the least amount of air among all of panasonics 80mm fan lineup.

 

[SinfulWeeper]

Perhaps. It is only a Duron 800. If I fry it, I am only out a few dollars. I just want to avoid having to replace it should I go through with this.
The heatsink is big... not sure about it's dissapation though. The fins are spaced far apart, but it was rated to cool the XP 2000+ and beyond.

 

[rondeemc]

I just read an article on a slimline pc that had no active cooling for the heat sink on a PIII running at >1.2. They had two small fans around 60mm or less right next to the heatsink pulling air over it and set for exhaust. When you consider that the PIII beats the P4 in many cases this might be an option. I would definitely suggest some type of shroud which would not be that hard to manufacture and a very efficient heat sink to help transfer the heat. Also a higher volume fan then what you are thinking. Could you mod the case for a 92 in place of the 80?

 

[amdskip]

put a 80mm panaflo on the diagonal on that heatsink, works great and no adapter needed!

 

[SinfulWeeper]

By the way, I know those temps are ugly and I normally would not like them. But major OEM vendors have near quiet computers.

 

[SinfulWeeper]

No difference in the temps as far as I could tell playing the game. I am going to fool around with some paper and make a shroud too see if that lowers things.