MCX462-V™ heatsink for AMD® processors (socket mount) DISCONTINUED Made in the USA       U.S. patent 6,469,898 and several other patents pending Introduction: After months of intense work, we are proud to introduce an entirely new class of heatsinks, which surpasses all previous high-performance Swiftech products by an order of magnitude (up to 6°C better at extremely low air flow rates). Our primary design parameter was simple: to optimize the performance characteristics of our heatinks at the lowest possible audible noise level. Our second-self imposed imperative was to ease the upgrade by only using plug-and-play retention mechanisms. Designed for AMD® socket 462 processors, here is the first of this new series of products, the MCX462-V™ which will be shortly followed by its Intel® compatible counterparts. Features highlights Hybrid copper base, thin aluminum pin heatsink: the massive 1/2" thick copper base provides superior heat capacity for unparalleled stability in extreme overclocking applications. The thin aluminum pins promote increased turbulence for more efficient heat dissipation compared to traditional fin extrusions. Patented Helicoid pin design (U.S. patent 6,469,898): pins are individually machined in an helicoid shape, to increase their surface area, and further enhance heat dissipation efficiency. Several patents pending for concentrically aligned rows of pins, bent at multiple angles. The spacing and angles between the concentric rows has been precisely calculated to optimize cooling and reduce noise at air flow levels as low as 22 CFM and 23 dbA. The MCX462-V™ is optimized to work with 80 and 92mm fans and ships with brackets for both. One can appreciate the size of the heatsink once a 92mm fan is installed, as shown below. Notably, the size of the heatsink base fits entirely within AMD® height restriction areas, affording the MCX462-V™ full compatibility with most (*) AMD compliant motherboards. Click for high-res picture Quick and easy fan installation: the fan installs "in a snap" with convenient snap-in rivets. Exceptional quality and attention to details: the heatsink base is lapped to 0.0003" (3/10 of 1/1000"), and polished to near-mirror finish to promote optimum thermal conductivity. Users are advised that while flatness is strictly respected for providing the most significant benefit to thermal interface, surface polish is a cosmetic component and may vary slightly from one heatsink to another. Re-lapping or polishing the heatsink base is never recommended.   Back to top Motherboard and CPU compatibility The MCX462-V™ heatsink snaps onto the socket retention tabs, and does not require removal of the motherboard. Tension onto the processor per AMD® specifications is then applied by loosening two compression springs. Processor Compatibility: all AMD® Duron®, Athlon® XP, Sempron & MP with no frequency limitations (lower or upper). Motherboard compatibility: all(*) AMD™ compliant motherboards using socket 462. The MCX462-V heatsink fits entirely into AMD's height restriction areas. (*) There is a "free for all" area located at each corner of the socket, which may in some motherboards be occupied by tall capacitors. Maximum capacitor height clearance afforded by the heatsink in such area is .600" (15.3mm). Please consult with your motherboard vendor to verify compatibility. Back to top Retention Mechanism The MCX462-V™ retention is intended for convenience and safety. It simply snaps onto the microprocessor socket. Tension is then applied by loosening two easily accessible screw-spring assemblies. The retention mechanism is designed to prevent damage to the processor during installation or removal of the heatsink.The gradual pressure afforded by the screw-spring assemblies during assembly virtually eliminates the possibility of chipping the fragile corners of the silicon. Both retention brackets attach to all three socket tabs for a very secure installation. However, due to the weight of the heatsink, the MCX462-V™ is not intended to be shipped installed on the processor.   Back to top Performance data Suggested fans. Because this product is intended to cover the widest possible variety of uses, from virtually silent operations all the way to extreme overclocking, it is sold without fan. We have extensively tested a large number of fans in our labs. Below is a list of the select few that were found to perform best with the MCX462-V™ heatsink. This list is intended to be updated as we receive more fans from the manufacturers for testing. For user convenience, we will from now on separate all our bench tests into 3 distinct categories characterized by the fan's audible noise level: Silent to low noise operations 22 to 26 dbA: For non-overclocked processors. The MCX462-V surpasses all known temperature specifications published by AMD® to this date. Medium noise operations: 28 dbA to 40 dbA - From mild to serious overclocking levels depending on the fan selected, or high temperature environments. Up to 100 Watts processor load. High noise operations: 40 dbA and up - From serious to extreme overclocking depending on the fan selected, up to 130 Watts processor load. Silent to low noise category - Lower C/W is better Brand Size (mm) Part # CFM dbA Heatsink-fan °C/Watts ratio (*) Vantec 92x25 SF9225L 28 20 0.333 Mechatronics 92x25 E9225S12B 29 24 0.307 Sunon 80x25 KD1208PTB4 25 23.4 0.307 NMB 80X25 3110NL-04W-B20 26.5 22.5 .291 Medium noise category - Lower C/W is better Brand Part # CFM dbA Heatsink-fan °C/Watts ratio (*) Sanyo Denki 92x32 109P0912H201 55.1 36 0.220 Delta 80x25 AFB0812HH 37.4 34 0.226 High noise category - Lower C/W is better Brand Part # CFM dbA Heatsink-fan °C/Watts ratio (*) Vantec 92x38 TD9238A 119 56.4 0.149 Vantec 80x38 TD8038H 84.1 55.2 0.145 * C/Ws shown are the heat sink to air values, excluding thermal resistance of the TIM joint, which will vary depending on the thermal interface used and bench test conditions. For reference, Swiftech's TIM joint bench test value is 0.09°C/W. All tests are performed in an environmental chamber using Industry standard procedures, and calibrated equipment. Back to top Specifications  heatsink CNC machined, C110 copper base, 3"W x 3"L x .500"H, flatness better than 0.0003", micro surface finish 8 or better. 390 Helicoid Pins made of High Thermal Conductivity Aluminum Alloy, press fitted in the base. Heatsink base dimensions 3"x3"x1.66" Weight: 23.2 oz (650g Back to top Suggested Retail Pricing Please consult your Swiftech distributor prior to ordering direct from us, or purchase the product factory direct here MODEL Factory bundled-FAN Mounting Hardware MSRP in US$ Motherboard retention Fan hardware for 80 & 92mm fans MCX462-V™ No Yes Yes $51.50 Back to top