I have just upgraded my HTPC and while the picture quality with Dsscaler is definitley better due to the increased processing capability, I now find that I hace cooling problems in my Dign case. Specs Asus A7V333 AMD XP2200+ Zalman Flower Cooler 2* 256mb pc2700 ddr Sapphire 9000 128mb radeon Enermax EG365AX PSU Maxtor 40Gb Diamondmax ATA133 7200 FDB Sound - using the onboard spdif to coaxial out Pinnacle Rave Capture Card Theatretek 1.5 Powerstrip 3.29 Dscaler 4.13 With the previous Celeron 1.2, I could have the adjustable fans on the Zalman and the Enermax on their slowest settings removed the case fan at the back of the Dign and there was virtually no noise from the PC and the temps running Dscaler were only about 49-50C. Tried that with the new setup and the temps very quickly passed 65C at which time I bailed out turned the fans right up. This dropped it a little towards 60 but obviously still a bit hot. I put the fan that came with the Dign back in the case which goes at the back by the processor, this improved things a litte. Next I removed the speed adjuster from the Zalamnn cooler as the motherboard has onboard adjusters. We are now down to about 59C but starting to get a lttle noisy. Read a bit over at AVS about adding a case fan at the front at an angle blowing across towards the processor. Again this is connected directly to a speed controller on the motherboard. Now I'm down to about 54C, cool enough probably but definatly too loud Took the case lid off, disconeccted the case fans, turned the Enermax right down, the Zalamnn fan is running at 2200rpm controlled by the motherboard and the temps are only 52C again running Dscaler at 100% CPU usage. Lovely and quiet. I have obviously considered watercooling but am not over keen, a mate suggested that an air-conditioning card is available for a PCI slot but I haven't heard them mentioned in these circles. Any suggestions?