Forgive me if I'm in the wrong spot here with this topic, but finding a Ttake specific forum seems quite difficult ( as they don't have a functional forum of their own apparently ). I'll appreciate any feedback on this. I"m running an HP Slimline s5213w desktop ( bought new - with some recently upgraded hardware ). Original Narra5 mobo w/W7 HP 64 bit OS AMD Athlon 64 X2 DC 6000+ 3.00 Ghz CPU 4 GB RAM GForce GT 220 GPU 350 Watt PSU Thermaltake TR2-R1 ( New ) When I installed the new CPU, I chose the TR2-R1 to go along with it. Wonderful little easy to install unit, but here's the issue. At a system start, the fan will jump a bit, but not go and Windows shuts down accordingly. Same with waking ( a little finger nudge and it'll run fine, but at no higher than 489 rpm ), but no shutdown or real overheating ( top 130 - 140 F ) at syst. idle. The mobo's also a 12v so it should be fine. The orig. CPU was an AMD Sempron LE 1250 - no Cool-n-Quiet installed. Also, strangely enough, I have no options in BIOS re: anything fans whatsoever Any thoughts on this ?