Originally Posted by thealmightyone
I believe you're using the 120mm above the rear I/O ports as an exhaust, rather than an intake. The 120mm blower fan alongside the GPU is your exhaust (a PCI exhaust card can help).
The 120mm intake fan at the front is simply for cooling your hard drives. It was never intended to provide your CPU with cool air. With holes in the bottom of your case, and top rear of your case (next to your blower fan), there will be no problem with positive pressure.
Try creating a cardboard air duct, so the rear intake fan blows directly onto the Zalman HS.
Originally Posted by DuckieHo
POS case? Did you mount your fans properly? Make sure to set the rear fan as an INTAKE fan. 58C loaded on a X2 4800+ still sounds high. You may want to try to remount your Zalman.
Thanks for the replies. Conflicting opinions so far- so what is the verdict it for the rear fan- intake, or exhaust?
This was a custom system built by Monarch (hah! long story there- they are toast now.) Rear 120mm fan is blowing out as exhaust the way they set it up, which made sense to me- I guess I can try flipping it to see if it makes a difference.
No need for a jury rigged cardboard duct; there is an aluminum duct already built into the case - sort of a cover that sits over the CPU socket directly over the rear fan.
I have another VGA card exhaust fan (like a PCI slot cooler but mounted to the back of the case) that sits directly below the video card.
I can try to remount the Zalman 9500, although I think it is OK- might invest in some AS5- just using generic thermal grease now. The Zalman was a recent addition, was using a stock HS/F until rebuilt system with the K8N motherboard (Asus A8N32-SLI Deluxe died), was getting about the same temps on it, a few degrees higher (!!)- could never get any decent overclock on it, which is why I upgraded to the 9500. I read some threads complaining that the stock fan on the 9500 was wimpy, I guess I can dig up the thread about people replacing it with an aftermarket one.
This POS case (yes, POS, I truly hate it's layout but paid 200 bucks for it, feel obligated to keep it) is extremely cramped & difficult to work on- no slide-out tray like my older but beloved Lian-Li PC-60's, so mounting & unmounting HS/F without tearing EVERYTHING out of the case to include the mobo is a nightmare.
Other than that, only thing I can think of is buying a better 120mm fan that moves more air.
Any benefits in upgrading the front hard drive enclosure fan as well?