- Joined
- May 31, 2004
Inspired by the idea of two diagonal fans on a HS, I decided to test a few configurations to see which was better in my rig.
The original idea is here but I simplified it to just two fans attached together:
http://www.ocforums.com/showthread.php?t=298736
First a single panaflo 59cfm fan blowing on an SP-94 (p4 3.2 @ 3.52). I put my rig sideways for this experiment so it's a bit more efficient than normal. The side panel was open.
-----case/HS = 33/36c (sucking = 33/35.5 almost the same)
Next, two fans connected together in a V shape blowing into the HS. I put two pieces of cardboard on the sides of the V to direct the air downwards.
-------case/HS = 32.5/35.5c (about the same as a single fan, surprised)
Next, the same V configuration but with 80mm fans blowing into the HS.
-------case/HS = 32/38c (a lot hotter, smaller cfm did it)
Next, the two fans connected side-by-side and sucking from the HS rather than blowing on it.
-------case/HS = 28/34c (much cooler)
Finally, putting my rig back on its bottom with the side-by-side fans blowing into a duct and sucking off the SP-94.
-------case/HS = 29c/36c (a 2c diff for the sp-94 on its side.)
Interesting that all those configurations didn't make much difference to the over all temps. I suspect my CPU temp reading is 2c lower than it really is, so for comparisons you need to add 2c to my HS temps. My case temps seem accurate.
The original idea is here but I simplified it to just two fans attached together:
http://www.ocforums.com/showthread.php?t=298736
First a single panaflo 59cfm fan blowing on an SP-94 (p4 3.2 @ 3.52). I put my rig sideways for this experiment so it's a bit more efficient than normal. The side panel was open.
-----case/HS = 33/36c (sucking = 33/35.5 almost the same)
Next, two fans connected together in a V shape blowing into the HS. I put two pieces of cardboard on the sides of the V to direct the air downwards.
-------case/HS = 32.5/35.5c (about the same as a single fan, surprised)
Next, the same V configuration but with 80mm fans blowing into the HS.
-------case/HS = 32/38c (a lot hotter, smaller cfm did it)
Next, the two fans connected side-by-side and sucking from the HS rather than blowing on it.
-------case/HS = 28/34c (much cooler)
Finally, putting my rig back on its bottom with the side-by-side fans blowing into a duct and sucking off the SP-94.
-------case/HS = 29c/36c (a 2c diff for the sp-94 on its side.)
Interesting that all those configurations didn't make much difference to the over all temps. I suspect my CPU temp reading is 2c lower than it really is, so for comparisons you need to add 2c to my HS temps. My case temps seem accurate.
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