Good evening Camp AMD! I have just put together a string of upgrades for my girlfriend, with an AMD Phenom II 955 BE (stock clocks), 4GB DDR3 ram, a Gigabyte motherboard (GA-MA78LMT-US2H) and an Arctic Cooling Freezer 13 cpu cooler. Also in the case is 1 HDD, A 4850 with a Vortexx Neo cooler and 2 120mm fans, one at the front and one at the rear of the case. What I didn't realise when I ordered the Freezer 13 is that with the retention plate of the AM3 motherboard, the HSF fan is blowing air out towards the top of the case. The case used is an Antec Sonata III. So the air is blowing out right into the PSU fan. I've just finally got Windows 7 installed and running, which has all been fine so far, and idle temps according to CoreTemp are 31C. (all the fans are going full-speed at the moment). (Cool n Quiet and C1E are activated in the BIOS). The problem sets in as soon as the CPU is stressed. In gaming (borderlands is the only game tested so far) the computer lasts about 3mins before the 60C alarm starts ringing. In a Blend test in Prime95, the temperatures rocket from 31C all the way to 60C in 30seconds. I can't see a way to tighten the cpu HSF any more, nor is there much space for any more fans. I have a feeling that the orientation of the HSF isn't helping, but has anyone got any ideas as to why the temperature rockets up so quickly? I'm at my wits end as to why this is happening. Please help!!