# Lenovo Heatsink Assembly for Toshiba 5H41B77178

**URL:** https://aio.lv/en/product--lenovo-5h41b77178--12590222
**Data updated:** 2026-07-23 04:11 (EEST)
**Category:** Other Repair Parts
**Manufacturer:** Lenovo
**Manufacturer code:** 5H41B77178
**EAN:** 5715063863138
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

This Lenovo heatsink assembly, model 5H41B77178, is a high-quality thermal management component designed for specific Toshiba hardware configurations. It effectively dissipates heat from the processor to ensure stable system performance and prevent overheating. This genuine replacement part is essential for maintaining optimal thermal efficiency and hardware longevity in compatible laptop systems.

## Long description

The Lenovo Heatsink Assembly for Toshiba 5H41B77178 is a precision-engineered thermal management component designed to maintain optimal operating temperatures for your laptop processor. By efficiently transferring heat away from critical internal components, this assembly prevents thermal throttling and ensures consistent system performance during demanding tasks. As a genuine replacement part, it provides a reliable solution for restoring the cooling efficiency of compatible Toshiba hardware configurations.
Advantages
This heatsink assembly offers superior heat dissipation capabilities, which are vital for protecting sensitive internal electronics from damage caused by excessive heat. Its robust construction ensures a perfect fit within the chassis, facilitating efficient airflow and reducing the workload on the system cooling fan. By maintaining stable temperatures, this component helps extend the overall lifespan of your laptop and prevents unexpected shutdowns or performance degradation associated with overheating.
Suitable for
Replacing a damaged or clogged heatsink in compatible Toshiba laptops
Restoring original cooling performance after system overheating issues
Professional laptop maintenance and hardware repair services
Preventing thermal throttling during intensive computing tasks
This component may not be suitable for laptop models outside of the specific Toshiba configurations for which it was designed. Attempting to install this part in an incompatible device may result in poor thermal contact or physical damage to the motherboard.
Key specifications
Genuine thermal management component
Designed for specific Toshiba hardware configurations
Optimized for efficient heat dissipation
Durable metal construction
How to use
Installation should be performed by a qualified technician or an experienced user familiar with laptop disassembly. Begin by powering off the device and disconnecting the power supply and battery. Carefully remove the bottom casing to access the cooling system. Unscrew the existing heatsink assembly, ensuring that any thermal paste residue is cleaned from the processor surface using isopropyl alcohol. Apply a thin, even layer of new thermal compound to the processor die before positioning the new heatsink. Secure the assembly using the original screws, ensuring even pressure across the mounting points, and reassemble the laptop.
What to consider before purchase
Verify compatibility with your specific laptop model and motherboard version
Ensure you have the necessary tools for laptop disassembly
Check if your current thermal paste needs replacement during the installation
Confirm that the cooling fan is also functioning correctly
Usage recommendations
Regularly clean the air vents of your laptop to prevent dust accumulation, which can impede the performance of the heatsink assembly and lead to increased operating temperatures.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Lenovo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Lenovo service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12590222/68965122_large.webp