fans blowing correct way?

jae

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Jul 31, 2001
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on my new set up i have a 80mm panaflo fan on the window blowing into the pc, another in the front blowing in the case and psu fans 120mm and 80mm. is this config alright, i was thinking maybe it was to much air blowing into the case but the cpu idles around 26c and system 37c.
 

ssvegeta1010

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Nov 13, 2004
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Your temps need to be switched. (Case is always lower than CPU, unless youre using phase or have some major heat dumping into your case.)

But that is correct fan placement.
 

imported_rod

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Apr 13, 2005
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CPU at 26C is fine. Mine is usually at 29C idle, and my chipset is about 31C.

When my system is idling, the CPU temp often drops below the system temp. I think it's because I have an intake fan in my side window and an exhaust fan in the back, so there's very little airflow near the front (where my chipset is). I'm putting a 120mm panaflo in the front anyway, so I think that'll solve the problem.

RoD
 

jae

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i want to drill some holes and put a 120mm on the back here but i dont know how that will mess with the air flow being that the psu's 120 blows down right there and the side fan is close to it also
 

Gravity

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Mar 21, 2003
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Well, you can but you're not going to see much gain, if any. You may want to consider blocking the psu fan from the rest of the case, make it draw from the front. Then mount your 120 on the rear to handle mb generated heat.

Otherwise, you're just at it for kicks because the gains will be limited. You'll need to go to water or phase change to see a huge jump.
 

xbassman

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Feb 25, 2001
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Originally posted by: jae
i want to drill some holes and put a 120mm on the back here but i dont know how that will mess with the air flow being that the psu's 120 blows down right there and the side fan is close to it also

Ummm....Do you really think your PSU fans are blowing into your case?
Industry standard is for PSU fans to exhaust their heat.

Rear case fan should exhaust also, making both rear and PSU fans pulling heat away from the CPU area.
 

jae

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same here its somethin with the 90nm chips or amd's cool and (?) feature, i remember reading about this here when 3000+ and 3200+ first launched people was wondering why it was like that, they thought something was wrong with the chip
 

alexXx

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Jun 4, 2002
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they are prolly jsut confused. it is quiet rare to have a case temp sensor on a mobo. what they are prolly thinking of is the motherboard chipset temp.