Fan Position

Ok right now I have a 92mm sunnon blowing on my video card, threw a blowhole. I am going to purchase a 120mm sunnon. Now should I either put the 92mm overtop of the HSF to give it a constant supply of air or should I put the 120mm over the HSF and fan.
I think in my mind it'd be better to put the 120mm over the video card and the 92 over the HSF


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1.2GHz AMD Athlon MP
MSI k7 Master
256MB Micron PC2100
ATI Radeon 64 ViVo @ 196/196 (Havent tried to reach its max)
20GB IBM 60GXP
GlobalWin WBK38, YS Tech 120mm intake, YS Tech 120mm Exhaust, 92mm Sunnon Blow Hole, Card Cooler.
AOPEN Case Modification.

bump

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1.2GHz AMD Athlon MP
MSI k7 Master
256MB Micron PC2100
ATI Radeon 64 ViVo @ 196/196 (Havent tried to reach its max)
20GB IBM 60GXP
GlobalWin WBK38, YS Tech 120mm intake, YS Tech 120mm Exhaust, 92mm Sunnon Blow Hole, Card Cooler.
AOPEN Case Modification.

i heard that putting a fan directly over the fan, kills the fan that is under, in your case the HSF. It must restrict airflow or something, and if you think about it, it kinda makes sense. Put it somewhere inbetween the ram and the HSF. That should work great

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My Rig