The voltage regulators can run especially hot on late model VGA cards (ATI 5870 & 5850), upwards of 100-120 degrees C. Thus, Thermalright created a cooling solution to help stabilize VGA overclocking. Both of the VRM heatsinks share the same compatibility information (ATI 5870 & 5850). The VRM-R3 is designed to take advantage of a side panel case fans, while VRM-R4 is designed to take advantage of tower style CPU coolers.
80mm of fin area, specially designed for the VRM of 5870/5850 VGA cards, effectively lowers the high temperature and prolongs the VGA life, provides greater range of over-clocking performance .
Patented High-riser punched fins, give better airflow between the fin area, superb cooling performance for both active (with fan) and passive cooling ( without fan).
Double 6mm heatpipes, soldered tightly with fin, to ensure fastest Thermal conductivity.
Easy Installation, "Hand Turnable" screws provided, installation can be done without any extra tools.
No extra fans needed, can use airflow from the Tower cpu cooler when needed.
One 80 x 15mm or 80 x 25mm fan can be installed ( need to be bought separately) .
Thermalright TR-VRM-R3 5870/5850 VRM R3 VGA Heatsink for ATI 5870/5850 Graphics Cards TRVRMR3
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