MCX462-U™ Universal Heatsink for AMD® & Intel® processors (thru-motherboard mount) DISCONTINUED Made in the USA       Patented   Features : Hybrid copper base, thin aluminum pin heatsink: the 3/8" thick copper base provides mass for superior energy absorption. 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. 80mm fan mounting brackets: allows users to install any 80mm fan, for dramatically improved performance to noise ratio compared to any 60mm fans. Fan attaches to mounting brackets riveted to the heatsink base. Wide range of CPU and motherboard compatibility combined into one thermal solution: The MCX462-U™ heatsink ships with all the necessary hardware for installation with the processors listed below. Exceptional quality and attention to details: the heatsink base is lapped, and polished to near-mirror finish to promote optimum thermal conductivity. back to top Motherboard and CPU compatibility The MCX462-U™ retention mechanism requires the presence of four mounting holes surrounding the processor socket, and is compatible with the following processors: AMD® Duron®, Athlon® XP & MP compatible with single and dual socket A (socket 462) motherboards. The MCX462-U™ is fully compatible with all socket A motherboards compliant with AMD® no component zone specifications, in single or dual CPU configuration. The heatsink geometry is such that it fits entirely inside of AMD® component height restriction zones. This allows clearance for capacitors located in areas close to the socket which are non height restricted by the CPU maker. Click on picture below to enlarge:  Intel® Pentium® 4, compatible with socket 423 and socket 478 motherboards Intel Xeon™ processors, in single socket 603 configuration The MCX462-U™ uses extension brackets for installation with Intel\® Pentium® 4processors back to top Retention Mechanism The retention mechanism is designed to prevent damage to the processor during installation or removal of the heatsink, or during shipping of a completely assembled computers. Each retention assembly (4 assemblies total) is composed of an aluminum standoff, secured to the motherboard by a nylon nut, a #6-32 Philips screw, a spring, and nylon spacer(s). Installation of the standoffs requires removal of Intel®'s heatsink supporting base, and necessitates removal of the motherboard from the computer case. Crash tests were conducted by repeatedly (3 times) dropping a case equipped with an MC462 heatsink from the roof of a second story building. The heatsink remained securely attached to the processor, and the processor didn't suffer any damage.   back to top Performance data Independent test results performed by a multitude of hardware review sites generally concur in ranking the MCX462™ as the highest performing heatsink available on the market. The most recent study published on June 2002 by the Swedish web site 64bits, provides detailed competitive data on the MCX462-U™ performance, relative to various fan airflow rating: Processor: AMD® Athlon® XP 2000 overclocked to 1760MHz @ 1.85v : Fan airflow & noise ratings 22 CFM / 14dBa 40 CFM / 30dBa 69 CFM / 49dBa Processor temperature 57.9°C (136°F) 49.1°C (120°F) 44.9°C (112°F) The above information reflects performance data obtained under specific testing conditions. Different processors, motherboards, and operating conditions will significantly affect processor temperature. back to top Specifications  heatsink CNC machined, C110 copper base, 3"W x 3"L x .375"H, flatness better than 0.001", micro surface finish 8 or better. 371 Helicoid Pins made of High Thermal Conductivity Aluminum Alloy, press fitted in the base. Overall heatsink dimensions 3"x3"x1.56" Weight: 20 oz (560g) Retention mechanism Motherboard fittings: 6-32 Female to Male 1/4" aluminum round standoffs with nylon washers and nylons nuts 4 compression springs  providing exact specified pressure per chip manufacturers. For IntelŪ PentiumŪ 4 processors: 2 extension brackets bolt to heatsink and provide compatibility with Pentium® 4 (socket 423 and socket 603) and Xeon™ (socket 603) hole patterns.   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 heatsink & Fan MCX462-U No Yes Yes $47 Spare Parts RH070 Rheostat $8.90 MCX462MB Motherboard Mounting kit for all models $4.5 MCX462HS heatsink & Fan mounting kit $4.5 MCX423MB Mounting bracket kit for PentiumŪ 4 socket 423 (early MC462 models only) $6 MCX462P4 Mounting bracket kit for PentiumŪ 4 socket 478 $3 back to top