Here what i got with playing around with the ducting. With the ducting my CPU load (load being 10 minutes of Flight Simulator 2004 at max settings) my cpu temp was 40C. WithOUT the ducting, the cpu temp is 37C at load. So as far as the ducting goes.... settle without it. Two problems ive noticed with it thus far...
[ i m a g e ]
1) when the duct is positioned over the heatsink/fan... the duct doesnt go hight enough to provide a space between the duct and the fan (this being true with a XP-120 HSF and SinenX 120mm fan combination). Antec recomends a 20mm gap between the two.. obviously that wasnt possible.
2) the duct is so large that it makes the rear 120mm fan useless. The rear fan cannot scoop up enough air from the front intakes and lead it through to the back. That 20mm gap between HSF and duct would help the problem.
In conclusion.. unless you have a smaller heatsink.. dont use the duct
dont use a fan on the heatsink and instead attach a 92mm fan into the duct itself.
I prefer... no duct.
Do you think this would still be an issue when using an XP-90?
I built my system yesterday in my Sonata II and came to the same two conclusions. I'm using a Thermalright XP-90, which is slightly taller than the XP-120 (judging by this
), and I couldn't get the duct to fit at all. The 92mm Panaflo fan was barely inside the duct, so I couldn't move the duct to the left to connect it to the rear exhaust connector.
Also, how warm is your Raptor running? Mine's at 36C right now with the motherboard at 29C and CPU also at 36C. The room is a bit warm and the sun is shining on the black case right now...
Here's my new setup:
Asus A8N-E w/NB47J
Athlon 64 3200+ Venice
Thermalright XP-90 w/Panaflo L1BX
Corsair 2x1GB TWINX2048-3200C2PT
BBA Radeon X800 XL 256MB
Sound Blaster Audigy 2 ZS
Western Digital 74gb Raptor
Black NEC 3520A 16x DVD+/-RW
Black Lite-On 52x32x52x16 Combo Drive
Antec Sonata II + Antec 38CFM front 120mm fan
Black Rounded IDE Cables
Enermax 485W Noisetaker ATX 2.0
I wasn't shooting for silence; I wanted a quiet setup and I'm very satisfied with how it turned out. The A8N-E is automatically adjusting the Panaflo fan and it's running at about 850-950rpm when idling, and only ~1200-1500 while gaming.