As the default cooler was unacceptable to me from day one i been meaning to find other ways to cool this card down. Well i had my Scythe MUSASHI hanging around from the 4870 which proved problematic which let me in getting the tweaked 4890. So after some time i decided that replacing the default fans on it with some cheap but better 120x25mm using some zip ties while i left the default red stock plate on the cooler for cooling the mem\regs. Here's some temps Idle Max load Yesterday i installed the Custom HD4870/4890 Cooling Kit by iandh for the ram and the VRM-R1 for the voltage regulators. And here's a update on the temps. Idle Max Items used so far Scythe MUSASHI http://www.frozencpu.com/products/8...VGA_Cooler_w_Fan_Speed_Control.html?tl=g40c21 Custom iandh ATI 4870 Memory & VRM cooling kit http://www.sidewindercomputers.com/cuiati48mevr.html Rosewill RFX-120 120mm Case Fan http://www.newegg.com/Product/Produ..._re=rosewill_fan_120mm-_-35-200-021-_-Product Just a few notes. Both test in idle were done with lowest allowed mem clock Both Max tests were done @ 920\910 with default voltages. Fans on the Cooler are running 2000~2200 and one on the VRM running @ 1500RPM. FurMark_v1.8.0 Fullscreen @1920x1080 with stability test, xtreme burning mode \ Displacment mapping, Post effects and x8 AA In a few days i'll have my hands on a Prolimatech_MK-13 and if all goes well will post the changes. http://www.frozencpu.com/products/1...i-Mount_Retention_System_Hot_Item.html?tl=g40 WARNING: The VRM-1/2 are NOT compatible with the Custom iandh ATI 4870 Memory & VRM cooling kit as modification are required to get them both fit ( if you want more detail about it let me know). O yeah just did it for kicks and was not planing to post this tbh.