{"product_id":"lenovo-5h41b77275-heatsink-assembly-uma-thermal-griffin","title":"Lenovo 5h41b77275 Heatsink Assembly Uma Thermal Griffin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe LENOVO 5h41b77275 is a factory-replacement heatsink and thermal assembly designed for integrated graphics (UMA) configurations in the Griffin JT4C0 platform. The assembly manages processor heat dissipation in slim notebook systems, drawing heat away from the CPU die and routing it through the heat pipe to the exhaust fin stack. Licensed computer repair technicians and depot-level service technicians are the primary installers of this component. It is an OEM-specification part sourced directly from Lenovo's parts catalog, ensuring a dimensional and thermal match to the original build.\u003c\/p\u003e\n\u003cp\u003eThis thermal assembly is intended for UMA (unified memory architecture) laptop configurations within the Griffin JT4C0 system platform. It is not compatible with discrete GPU variants, which require a separate dual-pipe or multi-pipe thermal solution. Typical installation scenarios include fan-on-heatsink replacements after thermal failure, heat pipe damage, or delaminated copper contact surfaces causing elevated CPU temperatures and thermal throttling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOEM-specification replacement heatsink and thermal assembly for the Griffin JT4C0 UMA platform\u003c\/li\u003e\n\u003cli\u003eDesigned for integrated graphics configurations — not interchangeable with discrete GPU thermal assemblies\u003c\/li\u003e\n\u003cli\u003eHeat pipe construction transfers heat from the processor contact pad to the exhaust fin array\u003c\/li\u003e\n\u003cli\u003eDirect Lenovo part — ensures correct mounting hole pattern, screw boss locations, and fin stack clearance\u003c\/li\u003e\n\u003cli\u003eDrop-in fit eliminates the need for modification during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement thermal assembly for Lenovo notebook systems on the Griffin JT4C0 platform using a UMA (integrated graphics) configuration. No additional compatible model numbers were specified in the product data.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified computer repair technician. Power down the system completely and disconnect the battery before removing any thermal components. Clean the processor contact surface and apply a fresh, thin layer of thermal interface material before seating the new assembly — reusing degraded thermal paste will result in poor thermal contact. Follow the manufacturer-recommended screw tightening sequence in the service manual to ensure even clamping pressure across the processor die.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: UMA (Integrated Graphics)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform\u003c\/strong\u003e: Griffin JT4C0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly Type\u003c\/strong\u003e: Heatsink and Thermal Assembly (THT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LENOVO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5h41b77275\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LENOVO","offers":[{"title":"Default Title","offer_id":51201135804722,"sku":"5H41B77275","price":103.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307158081.png?v=1779693182","url":"https:\/\/voomisupply.com\/products\/lenovo-5h41b77275-heatsink-assembly-uma-thermal-griffin","provider":"Voomi Supply","version":"1.0","type":"link"}