Voltage regulators can run especially hot on late model VGA cards (ATI 4870 & 4890), 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 4870 & 4890). Although VRM-1 is designed to take advantage of a side panel case fan, while the VRM-2 is positioned utilize the airflow of a tower style CPU cooler (as demonstrated in the photo).

Compatible Cooler : HR-03 Rev.A / HR-03 GT / V2 / T-Rad2 / T-Rad2 GTX
Compatible VGA CARD : ATI HD 4890/4870 VGA Card

Installation Manual

• Proprietary through holes on fins for efficient ventilation Soldered fins to copper base (nickel plated) to make effective contact
• Options to install 80 x 25mm or 80 x 15mm fans.
• Supports ATI HD 4890/4870 VGA cards.
• Two nickel-plated heatpipes to reduce oxidation effect, maintaining top performance for long term usage.
• Features an all copper base and soldering technology that has each heatsink fin soldered to the heatpipes for a definite contact in producing high efficiency rate of heat transfer.

Dimension:	L133 x W53 x H120 mm Weight
Recommended Fan:	80 x 80 x 25mm fans & 80 x 80 x 15mm Fans
Heatpipes:	Two heatpipes

01-10-2011
Reviewer: MikeB (2)
Got this on my MSI HD4870 today. Works like a charm and isn''t too heavy at all. well constructed. but you should really take a close look at where it mounts vs. the cpu cooler. may or may not fit depending on configuration. It barely fit, about 1mil of clearance between the cooler and the fan for the cpu. so its very efficient.